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diff --git a/deploy/dev/mysql/data/performance_schema/replication_conn_163.sdi b/deploy/dev/mysql/data/performance_schema/replication_conn_163.sdi
new file mode 100644
index 0000000..5807e1b
--- /dev/null
+++ b/deploy/dev/mysql/data/performance_schema/replication_conn_163.sdi
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unsigned","elements":[],"collation_id":255,"is_explicit_collation":false},{"name":"THREAD_ID","type":9,"is_nullable":true,"is_zerofill":false,"is_unsigned":true,"is_auto_increment":false,"is_virtual":false,"hidden":1,"ordinal_position":3,"char_length":20,"numeric_precision":20,"numeric_scale":0,"numeric_scale_null":false,"datetime_precision":0,"datetime_precision_null":1,"has_no_default":false,"default_value_null":true,"srs_id_null":true,"srs_id":0,"default_value":"","default_value_utf8_null":true,"default_value_utf8":"","default_option":"","update_option":"","comment":"","generation_expression":"","generation_expression_utf8":"","options":"interval_count=0;","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","column_key":4,"column_type_utf8":"bigint unsigned","elements":[],"collation_id":255,"is_explicit_collation":false},{"name":"SOCKET_ID","type":4,"is_nullable":false,"is_zerofill":false,"is_unsigned":false,"is_auto_increment":false,"is_virtual":false,"hidden":1,"ordinal_position":4,"char_length":11,"numeric_precision":10,"numeric_scale":0,"numeric_scale_null":false,"datetime_precision":0,"datetime_precision_null":1,"has_no_default":true,"default_value_null":false,"srs_id_null":true,"srs_id":0,"default_value":"AAAAAA==","default_value_utf8_null":true,"default_value_utf8":"","default_option":"","update_option":"","comment":"","generation_expression":"","generation_expression_utf8":"","options":"interval_count=0;","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","column_key":4,"column_type_utf8":"int","elements":[],"collation_id":255,"is_explicit_collation":false},{"name":"IP","type":16,"is_nullable":false,"is_zerofill":false,"is_unsigned":false,"is_auto_increment":false,"is_virtual":false,"hidden":1,"ordinal_position":5,"char_length":256,"numeric_precision":0,"numeric_scale":0,"numeric_scale_null":true,"datetime_precision":0,"datetime_precision_null":1,"has_no_default":true,"default_value_null":false,"srs_id_null":true,"srs_id":0,"default_value":"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA","default_value_utf8_null":true,"default_value_utf8":"","default_option":"","update_option":"","comment":"","generation_expression":"","generation_expression_utf8":"","options":"interval_count=0;","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","column_key":4,"column_type_utf8":"varchar(64)","elements":[],"collation_id":255,"is_explicit_collation":false},{"name":"PORT","type":4,"is_nullable":false,"is_zerofill":false,"is_unsigned":false,"is_auto_increment":false,"is_virtual":false,"hidden":1,"ordinal_position":6,"char_length":11,"numeric_precision":10,"numeric_scale":0,"numeric_scale_null":false,"datetime_precision":0,"datetime_precision_null":1,"has_no_default":true,"default_value_null":false,"srs_id_null":true,"srs_id":0,"default_value":"AAAAAA==","default_value_utf8_null":true,"default_value_utf8":"","default_option":"","update_option":"","comment":"","generation_expression":"","generation_expression_utf8":"","options":"interval_count=0;","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","column_key":1,"column_type_utf8":"int","elements":[],"collation_id":255,"is_explicit_collation":false},{"name":"STATE","type":22,"is_nullable":false,"is_zerofill":false,"is_unsigned":false,"is_auto_increment":false,"is_virtual":false,"hidden":1,"ordinal_position":7,"char_length":24,"numeric_precision":0,"numeric_scale":0,"numeric_scale_null":true,"datetime_precision":0,"datetime_precision_null":1,"has_no_default":true,"default_value_null":false,"srs_id_null":true,"srs_id":0,"default_value":"AQ==","default_value_utf8_null":true,"default_value_utf8":"","default_option":"","update_option":"","comment":"","generation_expression":"","generation_expression_utf8":"","options":"interval_count=2;","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","column_key":1,"column_type_utf8":"enum('IDLE','ACTIVE')","elements":[{"name":"SURMRQ==","index":1},{"name":"QUNUSVZF","index":2}],"collation_id":255,"is_explicit_collation":false}],"schema_ref":"performance_schema","se_private_id":18446744073709551615,"engine":"PERFORMANCE_SCHEMA","last_checked_for_upgrade_version_id":0,"comment":"","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","row_format":2,"partition_type":0,"partition_expression":"","partition_expression_utf8":"","default_partitioning":0,"subpartition_type":0,"subpartition_expression":"","subpartition_expression_utf8":"","default_subpartitioning":0,"indexes":[{"name":"PRIMARY","hidden":false,"is_generated":false,"ordinal_position":1,"comment":"","options":"flags=0;","se_private_data":"","type":1,"algorithm":4,"is_algorithm_explicit":false,"is_visible":true,"engine":"PERFORMANCE_SCHEMA","engine_attribute":"","secondary_engine_attribute":"","elements":[{"ordinal_position":1,"length":8,"order":1,"hidden":false,"column_opx":1}]},{"name":"THREAD_ID","hidden":false,"is_generated":false,"ordinal_position":2,"comment":"","options":"flags=0;","se_private_data":"","type":3,"algorithm":4,"is_algorithm_explicit":false,"is_visible":true,"engine":"PERFORMANCE_SCHEMA","engine_attribute":"","secondary_engine_attribute":"","elements":[{"ordinal_position":1,"length":8,"order":1,"hidden":false,"column_opx":2}]},{"name":"SOCKET_ID","hidden":false,"is_generated":false,"ordinal_position":3,"comment":"","options":"flags=0;","se_private_data":"","type":3,"algorithm":4,"is_algorithm_explicit":false,"is_visible":true,"engine":"PERFORMANCE_SCHEMA","engine_attribute":"","secondary_engine_attribute":"","elements":[{"ordinal_position":1,"length":4,"order":1,"hidden":false,"column_opx":3}]},{"name":"IP","hidden":false,"is_generated":false,"ordinal_position":4,"comment":"","options":"flags=0;","se_private_data":"","type":3,"algorithm":4,"is_algorithm_explicit":false,"is_visible":true,"engine":"PERFORMANCE_SCHEMA","engine_attribute":"","secondary_engine_attribute":"","elements":[{"ordinal_position":1,"length":256,"order":1,"hidden":false,"column_opx":4},{"ordinal_position":2,"length":4,"order":1,"hidden":false,"column_opx":5}]}],"foreign_keys":[],"check_constraints":[],"partitions":[],"collation_id":255}}
\ No newline at end of file
diff --git a/deploy/dev/mysql/data/performance_schema/status_by_host_179.sdi b/deploy/dev/mysql/data/performance_schema/status_by_host_179.sdi
new file mode 100644
index 0000000..b0f50c8
--- /dev/null
+++ b/deploy/dev/mysql/data/performance_schema/status_by_host_179.sdi
@@ -0,0 +1 @@
+{"mysqld_version_id":80402,"dd_version":80300,"sdi_version":80019,"dd_object_type":"Table","dd_object":{"name":"status_by_host","mysql_version_id":80402,"created":20251120094414,"last_altered":20251120094414,"hidden":1,"options":"avg_row_length=0;key_block_size=0;keys_disabled=0;pack_record=1;server_p_s_table=1;stats_auto_recalc=0;stats_sample_pages=0;","columns":[{"name":"HOST","type":29,"is_nullable":true,"is_zerofill":false,"is_unsigned":false,"is_auto_increment":false,"is_virtual":false,"hidden":1,"ordinal_position":1,"char_length":255,"numeric_precision":0,"numeric_scale":0,"numeric_scale_null":true,"datetime_precision":0,"datetime_precision_null":1,"has_no_default":false,"default_value_null":true,"srs_id_null":true,"srs_id":0,"default_value":"","default_value_utf8_null":true,"default_value_utf8":"","default_option":"","update_option":"","comment":"","generation_expression":"","generation_expression_utf8":"","options":"interval_count=0;","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","column_key":4,"column_type_utf8":"char(255)","elements":[],"collation_id":11,"is_explicit_collation":true},{"name":"VARIABLE_NAME","type":16,"is_nullable":false,"is_zerofill":false,"is_unsigned":false,"is_auto_increment":false,"is_virtual":false,"hidden":1,"ordinal_position":2,"char_length":256,"numeric_precision":0,"numeric_scale":0,"numeric_scale_null":true,"datetime_precision":0,"datetime_precision_null":1,"has_no_default":true,"default_value_null":false,"srs_id_null":true,"srs_id":0,"default_value":"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA","default_value_utf8_null":true,"default_value_utf8":"","default_option":"","update_option":"","comment":"","generation_expression":"","generation_expression_utf8":"","options":"interval_count=0;","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","column_key":1,"column_type_utf8":"varchar(64)","elements":[],"collation_id":255,"is_explicit_collation":false},{"name":"VARIABLE_VALUE","type":16,"is_nullable":true,"is_zerofill":false,"is_unsigned":false,"is_auto_increment":false,"is_virtual":false,"hidden":1,"ordinal_position":3,"char_length":4096,"numeric_precision":0,"numeric_scale":0,"numeric_scale_null":true,"datetime_precision":0,"datetime_precision_null":1,"has_no_default":false,"default_value_null":true,"srs_id_null":true,"srs_id":0,"default_value":"","default_value_utf8_null":true,"default_value_utf8":"","default_option":"","update_option":"","comment":"","generation_expression":"","generation_expression_utf8":"","options":"interval_count=0;","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","column_key":1,"column_type_utf8":"varchar(1024)","elements":[],"collation_id":255,"is_explicit_collation":false}],"schema_ref":"performance_schema","se_private_id":18446744073709551615,"engine":"PERFORMANCE_SCHEMA","last_checked_for_upgrade_version_id":0,"comment":"","se_private_data":"","engine_attribute":"","secondary_engine_attribute":"","row_format":2,"partition_type":0,"partition_expression":"","partition_expression_utf8":"","default_partitioning":0,"subpartition_type":0,"subpartition_expression":"","subpartition_expression_utf8":"","default_subpartitioning":0,"indexes":[{"name":"HOST","hidden":false,"is_generated":false,"ordinal_position":1,"comment":"","options":"flags=0;","se_private_data":"","type":2,"algorithm":4,"is_algorithm_explicit":false,"is_visible":true,"engine":"PERFORMANCE_SCHEMA","engine_attribute":"","secondary_engine_attribute":"","elements":[{"ordinal_position":1,"length":255,"order":1,"hidden":false,"column_opx":0},{"ordinal_position":2,"length":256,"order":1,"hidden":false,"column_opx":1}]}],"foreign_keys":[],"check_constraints":[],"partitions":[],"collation_id":255}}
\ No newline at end of file
diff --git a/deploy/dev/mysql/data/server-key.pem b/deploy/dev/mysql/data/server-key.pem
new file mode 100644
index 0000000..7c74dc8
Binary files /dev/null and b/deploy/dev/mysql/data/server-key.pem differ
diff --git a/deploy/dev/mysql/data/undo_001 b/deploy/dev/mysql/data/undo_001
index e215cac..d525d7c 100644
Binary files a/deploy/dev/mysql/data/undo_001 and b/deploy/dev/mysql/data/undo_001 differ
diff --git a/deploy/dev/mysql/data/undo_002 b/deploy/dev/mysql/data/undo_002
index 910a9b8..fafc3e2 100644
Binary files a/deploy/dev/mysql/data/undo_002 and b/deploy/dev/mysql/data/undo_002 differ
diff --git a/deploy/dev/mysql/data/yxs_sms/classes.ibd b/deploy/dev/mysql/data/yxs_sms/classes.ibd
index 16fb01c..572f5b3 100644
Binary files a/deploy/dev/mysql/data/yxs_sms/classes.ibd and b/deploy/dev/mysql/data/yxs_sms/classes.ibd differ
diff --git a/deploy/dev/mysql/data/yxs_sms/majors.ibd b/deploy/dev/mysql/data/yxs_sms/majors.ibd
new file mode 100644
index 0000000..7ff3121
Binary files /dev/null and b/deploy/dev/mysql/data/yxs_sms/majors.ibd differ
diff --git a/deploy/dev/mysql/data/yxs_sms/students.ibd b/deploy/dev/mysql/data/yxs_sms/students.ibd
index 9bfd626..bf06c84 100644
Binary files a/deploy/dev/mysql/data/yxs_sms/students.ibd and b/deploy/dev/mysql/data/yxs_sms/students.ibd differ
diff --git a/deploy/dev/mysql/data/yxs_sms/teachers.ibd b/deploy/dev/mysql/data/yxs_sms/teachers.ibd
index c462a35..abfdd74 100644
Binary files a/deploy/dev/mysql/data/yxs_sms/teachers.ibd and b/deploy/dev/mysql/data/yxs_sms/teachers.ibd differ
diff --git a/deploy/dev/mysql/data/yxs_sms/users.ibd b/deploy/dev/mysql/data/yxs_sms/users.ibd
index c6f1d34..bf8aa4a 100644
Binary files a/deploy/dev/mysql/data/yxs_sms/users.ibd and b/deploy/dev/mysql/data/yxs_sms/users.ibd differ
diff --git a/deploy/dev/mysql/sql/initdb.sql b/deploy/dev/mysql/sql/initdb.sql
index b995049..e4f0e52 100644
--- a/deploy/dev/mysql/sql/initdb.sql
+++ b/deploy/dev/mysql/sql/initdb.sql
@@ -87,49 +87,3 @@ CREATE TABLE IF NOT EXISTS teachers (
                                         PRIMARY KEY (id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='教师表';
 
--- 课程表
-CREATE TABLE IF NOT EXISTS courses (
-                                       id varchar(64) NOT NULL COMMENT '课程ID（雪花算法生成）',
-                                       teacher_id varchar(64) NOT NULL COMMENT '教师ID（外键）',
-                                       course_name VARCHAR(200) NOT NULL COMMENT '课程名称',
-                                       course_code VARCHAR(100) UNIQUE NOT NULL COMMENT '课程代码',
-                                       credit DECIMAL(3,1) COMMENT '学分',
-                                       total_hours INT COMMENT '总课时',
-                                       description TEXT COMMENT '课程描述',
-                                       status INT DEFAULT 1 COMMENT '状态：1=启用，0=禁用',
-                                       created_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
-                                       updated_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
-                                       PRIMARY KEY (id),
-                                       FOREIGN KEY (teacher_id) REFERENCES teachers(id) ON DELETE RESTRICT COMMENT '教师外键约束'
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='课程表';
-
--- 创建索引
-CREATE INDEX idx_teacher_id ON courses(teacher_id);
-CREATE INDEX idx_course_code ON courses(course_code);
-CREATE INDEX idx_teacher_no ON teachers(teacher_no);
-
-
--- 课程成绩表
-CREATE TABLE IF NOT EXISTS course_scores (
-                                             id varchar(64) NOT NULL COMMENT '成绩ID（雪花算法生成）',
-                                             course_id varchar(64) NOT NULL COMMENT '课程ID（外键）',
-                                             student_id varchar(64) NOT NULL COMMENT '学生ID（外键）',
-                                             usual_score DECIMAL(5,2) COMMENT '平时成绩(0-100)',
-                                             midterm_score DECIMAL(5,2) COMMENT '期中成绩(0-100)',
-                                             final_score DECIMAL(5,2) COMMENT '期末成绩(0-100)',
-                                             total_score DECIMAL(5,2) COMMENT '总成绩(0-100)',
-                                             grade VARCHAR(10) COMMENT '等级(A/B/C/D/F)',
-                                             status INT DEFAULT 1 COMMENT '状态：1=正常，0=删除',
-                                             remark VARCHAR(500) COMMENT '备注',
-                                             created_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
-                                             updated_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
-                                             PRIMARY KEY (id),
-                                             FOREIGN KEY (course_id) REFERENCES courses(id) ON DELETE RESTRICT COMMENT '课程外键',
-                                             FOREIGN KEY (student_id) REFERENCES students(id) ON DELETE RESTRICT COMMENT '学生外键',
-                                             UNIQUE KEY uk_course_student (course_id, student_id) COMMENT '同一学生同一课程唯一'
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='课程成绩表';
-
--- 创建索引
-CREATE INDEX idx_course_id ON course_scores(course_id);
-CREATE INDEX idx_student_id ON course_scores(student_id);
-CREATE INDEX idx_grade ON course_scores(grade);
\ No newline at end of file
diff --git a/deploy/dev/redis/data/dump.rdb b/deploy/dev/redis/data/dump.rdb
index 49427d5..1aaf904 100644
Binary files a/deploy/dev/redis/data/dump.rdb and b/deploy/dev/redis/data/dump.rdb differ
diff --git a/yuxingshi-sms-common/yuxingshi-sms-core/src/main/java/yuxingshi/sms/common/core/domain/enums/EntityStatus.java b/yuxingshi-sms-common/yuxingshi-sms-core/src/main/java/yuxingshi/sms/common/core/domain/enums/EntityStatus.java
new file mode 100644
index 0000000..692b087
--- /dev/null
+++ b/yuxingshi-sms-common/yuxingshi-sms-core/src/main/java/yuxingshi/sms/common/core/domain/enums/EntityStatus.java
@@ -0,0 +1,38 @@
+package yuxingshi.sms.common.core.domain.enums;
+
+/**
+ * 实体状态枚举
+ * 用于管理系统中各实体（班级、专业、学生、教师、课程等）的状态
+ */
+public enum EntityStatus {
+    DISABLED(0, "禁用"),
+    ACTIVE(1, "启用");
+
+    private final int value;
+    private final String description;
+
+    EntityStatus(int value, String description) {
+        this.value = value;
+        this.description = description;
+    }
+
+    public int getValue() {
+        return value;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    /**
+     * 根据值获取枚举
+     */
+    public static EntityStatus fromValue(int value) {
+        for (EntityStatus status : EntityStatus.values()) {
+            if (status.getValue() == value) {
+                return status;
+            }
+        }
+        throw new IllegalArgumentException("未知的状态值: " + value);
+    }
+}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/ClassesController.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/ClassesController.java
index 05c558e..a50dd64 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/ClassesController.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/ClassesController.java
@@ -6,11 +6,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 import com.alibaba.excel.EasyExcel;
-import yuxingshi.sms.server.domain.dto.stu_class.ClassExcelDTO;
-import yuxingshi.sms.server.domain.dto.stu_class.ClassManageDTO;
+import yuxingshi.sms.server.domain.dto.stu_class.*;
 import yuxingshi.sms.server.service.ClassesService;
-import yuxingshi.sms.server.domain.dto.stu_class.ClassQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.stu_class.ClassRespDTO;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportResultDTO;
 import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
 import yuxingshi.sms.common.core.domain.vo.R;
@@ -58,6 +55,16 @@ public class ClassesController {
         return R.ok();
     }
 
+
+    /**
+     * 查询班级详情
+     */
+    @GetMapping("/{classId}")
+    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN})
+    public R<ClassDetailDTO> getClassDetail(@PathVariable(value = "classId") String classId) {
+        ClassDetailDTO classDetail = classesService.getClassDetail(classId);
+        return R.ok(classDetail);
+    }
     /**
      * 禁用班级
      */
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/CourseController.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/CourseController.java
deleted file mode 100644
index 6e38c45..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/CourseController.java
+++ /dev/null
@@ -1,83 +0,0 @@
-package yuxingshi.sms.server.controller;
-
-import jakarta.validation.Valid;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.*;
-import yuxingshi.sms.server.service.CourseService;
-import yuxingshi.sms.server.domain.dto.course.CourseManageDTO;
-import yuxingshi.sms.server.domain.dto.course.CourseQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.course.CourseRespDTO;
-import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
-import yuxingshi.sms.common.core.domain.vo.R;
-import yuxingshi.sms.common.core.domain.enums.UserRole;
-import yuxingshi.sms.common.intercepter.annotation.RequireIdentity;
-
-@Slf4j
-@RestController
-@RequestMapping("/api/courses")
-public class CourseController {
-
-    @Autowired
-    private CourseService courseService;
-
-    /**
-     * 新增课程
-     */
-    @PostMapping
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<String> createCourse(@Valid @RequestBody CourseManageDTO dto) {
-        String courseId = courseService.createCourse(dto);
-        return R.ok(courseId, "课程创建成功");
-    }
-
-    /**
-     * 编辑课程信息
-     */
-    @PutMapping("/{courseId}")
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<Void> updateCourse(@PathVariable(value = "courseId") String courseId, @Valid @RequestBody CourseManageDTO dto) {
-        courseService.updateCourse(courseId, dto);
-        return R.ok();
-    }
-
-    /**
-     * 删除课程
-     */
-    @DeleteMapping("/{courseId}")
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<Void> deleteCourse(@PathVariable(value = "courseId") String courseId) {
-        courseService.deleteCourse(courseId);
-        return R.ok();
-    }
-
-    /**
-     * 禁用课程
-     */
-    @PutMapping("/{courseId}/disable")
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<Void> disableCourse(@PathVariable(value = "courseId") String courseId) {
-        courseService.disableCourse(courseId);
-        return R.ok();
-    }
-
-    /**
-     * 启用课程
-     */
-    @PutMapping("/{courseId}/enable")
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<Void> enableCourse(@PathVariable(value = "courseId") String courseId) {
-        courseService.enableCourse(courseId);
-        return R.ok();
-    }
-
-    /**
-     * 查询课程列表
-     */
-    @GetMapping
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<BasePageDTO<CourseRespDTO>> queryCourses(@Valid CourseQueryReqDTO queryReq) {
-        BasePageDTO<CourseRespDTO> pageDTO = courseService.queryCourses(queryReq);
-        return R.ok(pageDTO);
-    }
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/CourseScoreController.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/CourseScoreController.java
deleted file mode 100644
index 8635618..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/CourseScoreController.java
+++ /dev/null
@@ -1,89 +0,0 @@
-package yuxingshi.sms.server.controller;
-
-import jakarta.validation.Valid;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.*;
-import yuxingshi.sms.server.service.CourseScoreService;
-import yuxingshi.sms.server.domain.dto.score.CourseScoreManageDTO;
-import yuxingshi.sms.server.domain.dto.score.CourseScoreQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.score.CourseScoreRespDTO;
-import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
-import yuxingshi.sms.common.core.domain.vo.R;
-import yuxingshi.sms.common.core.domain.enums.UserRole;
-import yuxingshi.sms.common.intercepter.annotation.RequireIdentity;
-
-@Slf4j
-@RestController
-@RequestMapping("/api/course-scores")
-public class CourseScoreController {
-
-    @Autowired
-    private CourseScoreService courseScoreService;
-
-    /**
-     * 为学生添加课程成绩
-     */
-    @PostMapping
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<String> addCourseScore(@Valid @RequestBody CourseScoreManageDTO dto) {
-        String scoreId = courseScoreService.addCourseScore(dto);
-        return R.ok(scoreId, "成绩添加成功");
-    }
-
-    /**
-     * 更新课程成绩
-     */
-    @PutMapping("/{scoreId}")
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<Void> updateCourseScore(@PathVariable(value = "scoreId") String scoreId, @Valid @RequestBody CourseScoreManageDTO dto) {
-        courseScoreService.updateCourseScore(scoreId, dto);
-        return R.ok();
-    }
-
-    /**
-     * 删除课程成绩
-     */
-    @DeleteMapping("/{scoreId}")
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<Void> deleteCourseScore(@PathVariable(value = "scoreId") String scoreId) {
-        courseScoreService.deleteCourseScore(scoreId);
-        return R.ok();
-    }
-
-    /**
-     * 查询课程成绩列表
-     */
-    @GetMapping
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<BasePageDTO<CourseScoreRespDTO>> queryCourseScores(@Valid CourseScoreQueryReqDTO queryReq) {
-        BasePageDTO<CourseScoreRespDTO> pageDTO = courseScoreService.queryCourseScores(queryReq);
-        return R.ok(pageDTO);
-    }
-
-    /**
-     * 查询学生的所有课程成绩
-     */
-    @GetMapping("/student/{studentId}")
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<BasePageDTO<CourseScoreRespDTO>> queryStudentScores(
-            @PathVariable(value = "studentId") String studentId,
-            @RequestParam(defaultValue = "1") Integer pageNum,
-            @RequestParam(defaultValue = "10") Integer pageSize) {
-        BasePageDTO<CourseScoreRespDTO> pageDTO = courseScoreService.queryStudentScores(studentId, pageNum, pageSize);
-        return R.ok(pageDTO);
-    }
-
-    /**
-     * 查询课程的所有学生成绩
-     */
-    @GetMapping("/course/{courseId}")
-    @RequireIdentity({UserRole.ROLE_SYS_ADMIN, UserRole.ROLE_ADMIN, UserRole.ROLE_TEACHER})
-    public R<BasePageDTO<CourseScoreRespDTO>> queryCourseStudentScores(
-            @PathVariable(value = "courseId") String courseId,
-            @RequestParam(defaultValue = "1") Integer pageNum,
-            @RequestParam(defaultValue = "10") Integer pageSize) {
-        BasePageDTO<CourseScoreRespDTO> pageDTO = courseScoreService.queryCourseStudentScores(courseId, pageNum, pageSize);
-        return R.ok(pageDTO);
-    }
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/StudentController.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/StudentController.java
index 1905e73..9e55431 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/StudentController.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/StudentController.java
@@ -6,11 +6,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 import com.alibaba.excel.EasyExcel;
-import yuxingshi.sms.server.domain.dto.stu.StudentExcelDTO;
+import yuxingshi.sms.server.domain.dto.stu.*;
 import yuxingshi.sms.server.service.StudentService;
-import yuxingshi.sms.server.domain.dto.stu.StudentManageDTO;
-import yuxingshi.sms.server.domain.dto.stu.StudentQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.stu.StudentRespDTO;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportResultDTO;
 import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
 import yuxingshi.sms.common.core.domain.vo.R;
@@ -99,4 +96,14 @@ public class StudentController {
         ImportResultDTO result = studentService.importStudents(file);
         return R.ok(result);
     }
+
+
+    /**
+     * 查询学生详情
+     */
+    @GetMapping("/{studentId}")
+    public R<StudentDetailDTO> getStudentDetail(@PathVariable("studentId") String studentId) {
+        StudentDetailDTO studentDetail = studentService.getStudentDetail(studentId);
+        return R.ok(studentDetail);
+    }
 }
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/TeacherController.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/TeacherController.java
index 32a1581..9a765e4 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/TeacherController.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/controller/TeacherController.java
@@ -43,6 +43,15 @@ public class TeacherController {
         return R.ok();
     }
 
+
+    /**
+     * 获取教师详情
+     */
+    @GetMapping("/{teacherId}")
+    public R<TeacherRespDTO> getTeacherDetail(@PathVariable(value = "teacherId") String teacherId) {
+        TeacherRespDTO teacherRespDTO = teacherService.getTeacherDetail(teacherId);
+        return R.ok(teacherRespDTO);
+    }
     /**
      * 删除教师
      */
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/course/CourseManageDTO.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/course/CourseManageDTO.java
deleted file mode 100644
index 11bc135..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/course/CourseManageDTO.java
+++ /dev/null
@@ -1,40 +0,0 @@
-package yuxingshi.sms.server.domain.dto.course;
-
-import jakarta.validation.constraints.*;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.math.BigDecimal;
-
-/**
- * 课程新增/编辑请求DTO
- */
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-public class CourseManageDTO {
-    @NotBlank(message = "教师ID不能为空")
-    private String teacherId;
-
-    @NotBlank(message = "课程名称不能为空")
-    @Size(max = 100, message = "课程名称长度不能超过100个字符")
-    private String courseName;
-
-    @NotBlank(message = "课程代码不能为空")
-    @Pattern(regexp = "^[A-Z0-9]{4,20}$", message = "课程代码格式不正确，应为4-20位大写字母或数字")
-    private String courseCode;
-
-    @DecimalMin(value = "0.5", message = "学分不能小于0.5")
-    @DecimalMax(value = "10.0", message = "学分不能大于10.0")
-    private BigDecimal credit;
-
-    @Min(value = 1, message = "总学时不能小于1")
-    @Max(value = 500, message = "总学时不能大于500")
-    private Integer totalHours;
-
-    @Size(max = 500, message = "课程描述长度不能超过500个字符")
-    private String description;
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/course/CourseQueryReqDTO.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/course/CourseQueryReqDTO.java
deleted file mode 100644
index 465304d..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/course/CourseQueryReqDTO.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package yuxingshi.sms.server.domain.dto.course;
-
-import yuxingshi.sms.common.core.domain.dto.BasePageReqDTO;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-/**
- * 课程查询请求DTO
- */
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-public class CourseQueryReqDTO extends BasePageReqDTO {
-    private String teacherId;
-
-    private String courseName;
-
-    private String courseCode;
-
-    private Integer status;
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/course/CourseRespDTO.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/course/CourseRespDTO.java
deleted file mode 100644
index aa8a5c7..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/course/CourseRespDTO.java
+++ /dev/null
@@ -1,41 +0,0 @@
-package yuxingshi.sms.server.domain.dto.course;
-
-import com.fasterxml.jackson.annotation.JsonFormat;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.math.BigDecimal;
-import java.time.LocalDateTime;
-
-/**
- * 课程查询响应DTO
- */
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-public class CourseRespDTO {
-    private String id;
-
-    private String teacherId;
-
-    private String courseName;
-
-    private String courseCode;
-
-    private BigDecimal credit;
-
-    private Integer totalHours;
-
-    private String description;
-
-    private Integer status;
-
-    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
-    private LocalDateTime createdTime;
-
-    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
-    private LocalDateTime updatedTime;
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/score/CourseScoreManageDTO.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/score/CourseScoreManageDTO.java
deleted file mode 100644
index 1492c8c..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/score/CourseScoreManageDTO.java
+++ /dev/null
@@ -1,40 +0,0 @@
-package yuxingshi.sms.server.domain.dto.score;
-
-import jakarta.validation.constraints.DecimalMax;
-import jakarta.validation.constraints.DecimalMin;
-import jakarta.validation.constraints.NotBlank;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.math.BigDecimal;
-
-/**
- * 课程成绩新增/编辑请求DTO
- */
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-public class CourseScoreManageDTO {
-    @NotBlank(message = "课程ID不能为空")
-    private String courseId;
-
-    @NotBlank(message = "学生ID不能为空")
-    private String studentId;
-
-    @DecimalMin(value = "0", message = "平时成绩不能小于0")
-    @DecimalMax(value = "100", message = "平时成绩不能大于100")
-    private BigDecimal usualScore;
-
-    @DecimalMin(value = "0", message = "期中成绩不能小于0")
-    @DecimalMax(value = "100", message = "期中成绩不能大于100")
-    private BigDecimal midtermScore;
-
-    @DecimalMin(value = "0", message = "期末成绩不能小于0")
-    @DecimalMax(value = "100", message = "期末成绩不能大于100")
-    private BigDecimal finalScore;
-
-    private String remark;
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/score/CourseScoreQueryReqDTO.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/score/CourseScoreQueryReqDTO.java
deleted file mode 100644
index 69d17dc..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/score/CourseScoreQueryReqDTO.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package yuxingshi.sms.server.domain.dto.score;
-
-import yuxingshi.sms.common.core.domain.dto.BasePageReqDTO;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-/**
- * 课程成绩查询请求DTO
- */
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-public class CourseScoreQueryReqDTO extends BasePageReqDTO {
-    private String courseId;
-
-    private String studentId;
-
-    private String grade;
-
-    private String sortBy;  // 排序字段：total_score, grade等
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/score/CourseScoreRespDTO.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/score/CourseScoreRespDTO.java
deleted file mode 100644
index 6ab4f14..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/score/CourseScoreRespDTO.java
+++ /dev/null
@@ -1,51 +0,0 @@
-package yuxingshi.sms.server.domain.dto.score;
-
-import com.fasterxml.jackson.annotation.JsonFormat;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-import java.math.BigDecimal;
-import java.time.LocalDateTime;
-
-/**
- * 课程成绩查询响应DTO
- */
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-public class CourseScoreRespDTO {
-    private String id;
-
-    private String courseId;
-
-    private String courseName;
-
-    private String courseCode;
-
-    private String studentId;
-
-    private String studentNo;
-
-    private String studentName;
-
-    private BigDecimal usualScore;
-
-    private BigDecimal midtermScore;
-
-    private BigDecimal finalScore;
-
-    private BigDecimal totalScore;
-
-    private String grade;
-
-    private String remark;
-
-    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
-    private LocalDateTime createdTime;
-
-    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
-    private LocalDateTime updatedTime;
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu/StudentDetailDTO.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu/StudentDetailDTO.java
new file mode 100644
index 0000000..3bad53b
--- /dev/null
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu/StudentDetailDTO.java
@@ -0,0 +1,29 @@
+package yuxingshi.sms.server.domain.dto.stu;
+
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+public class StudentDetailDTO {
+    private String id;
+
+    private String userId;
+
+    private String classId;
+
+
+    private String classCode;
+
+    private String majorId;
+
+    private String studentNo;
+
+    private String realName;
+
+    private Integer gender;
+
+    private String phone;
+
+
+}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassDetailDTO.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassDetailDTO.java
new file mode 100644
index 0000000..87de0d5
--- /dev/null
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassDetailDTO.java
@@ -0,0 +1,25 @@
+package yuxingshi.sms.server.domain.dto.stu_class;
+
+
+import lombok.Builder;
+import lombok.Data;
+
+/**
+ * 班级详情DTO
+ */
+@Builder
+@Data
+public class ClassDetailDTO {
+
+    private String id;
+
+    private String classCode;
+
+    private String majorId;
+
+    private String majorName;
+
+    private String majorCode;
+
+    private String description;
+}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassExcelDTO.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassExcelDTO.java
index e430a45..29010eb 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassExcelDTO.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassExcelDTO.java
@@ -17,8 +17,8 @@ public class ClassExcelDTO {
     @ExcelProperty(index = 0, value = "班级代码")
     private String classCode;
 
-    @ExcelProperty(index = 1, value = "专业ID")
-    private String majorId;
+    @ExcelProperty(index = 1, value = "专业代码")
+    private String majorCode;
 
     @ExcelProperty(index = 2, value = "班级描述")
     private String description;
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassReadListener.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassReadListener.java
index c618fa0..c534d91 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassReadListener.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/domain/dto/stu_class/ClassReadListener.java
@@ -16,13 +16,13 @@ public class ClassReadListener extends ExcelImportUtil.BaseReadListener<ClassExc
             return true;
         }
         // 如果所有主要字段都为空则跳过
-        if (StringUtils.isAllBlank(data.getClassCode(), data.getMajorId(), data.getDescription())) {
+        if (StringUtils.isAllBlank(data.getClassCode(), data.getMajorCode(), data.getDescription())) {
             return true;
         }
         // 如果首行看起来像是表头，忽略这行
         if (rowNo == 1) {
             if ("班级代码".equalsIgnoreCase(data.getClassCode())
-                    || "专业ID".equalsIgnoreCase(data.getMajorId())) {
+                    || "专业代码".equalsIgnoreCase(data.getMajorCode())) {
                 return true;
             }
         }
@@ -35,8 +35,8 @@ public class ClassReadListener extends ExcelImportUtil.BaseReadListener<ClassExc
         if (data.getClassCode() != null) {
             data.setClassCode(data.getClassCode().trim());
         }
-        if (data.getMajorId() != null) {
-            data.setMajorId(data.getMajorId().trim());
+        if (data.getMajorCode() != null) {
+            data.setMajorCode(data.getMajorCode().trim());
         }
         if (data.getDescription() != null) {
             data.setDescription(data.getDescription().trim());
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/ClassesMapper.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/ClassesMapper.java
index 7c34541..a0e5a3f 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/ClassesMapper.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/ClassesMapper.java
@@ -2,6 +2,8 @@ package yuxingshi.sms.server.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Select;
+import yuxingshi.sms.server.domain.dto.stu_class.ClassDetailDTO;
 import yuxingshi.sms.server.domain.entity.Classes;
 
 /**
@@ -9,4 +11,7 @@ import yuxingshi.sms.server.domain.entity.Classes;
  */
 @Mapper
 public interface ClassesMapper extends BaseMapper<Classes> {
+
+    @Select("select c.id,class_code,c.major_id,m.major_name,m.major_code,c.description from classes as c left join majors  as m on c.major_id = m.id where c.id = #{id}")
+    ClassDetailDTO getClassWithMajorById(String id);
 }
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/CourseMapper.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/CourseMapper.java
deleted file mode 100644
index fee02cf..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/CourseMapper.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package yuxingshi.sms.server.mapper;
-
-import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-import org.apache.ibatis.annotations.Mapper;
-import yuxingshi.sms.server.domain.entity.Course;
-
-/**
- * 课程Mapper接口
- */
-@Mapper
-public interface CourseMapper extends BaseMapper<Course> {
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/CourseScoreMapper.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/CourseScoreMapper.java
deleted file mode 100644
index 7331b6d..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/CourseScoreMapper.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package yuxingshi.sms.server.mapper;
-
-import com.baomidou.mybatisplus.core.mapper.BaseMapper;
-import org.apache.ibatis.annotations.Mapper;
-import yuxingshi.sms.server.domain.entity.CourseScore;
-
-/**
- * 课程成绩Mapper接口
- */
-@Mapper
-public interface CourseScoreMapper extends BaseMapper<CourseScore> {
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/StudentMapper.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/StudentMapper.java
index 56fa75a..8ed1d04 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/StudentMapper.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/mapper/StudentMapper.java
@@ -2,6 +2,8 @@ package yuxingshi.sms.server.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Select;
+import yuxingshi.sms.server.domain.dto.stu.StudentDetailDTO;
 import yuxingshi.sms.server.domain.entity.Student;
 
 /**
@@ -9,4 +11,7 @@ import yuxingshi.sms.server.domain.entity.Student;
  */
 @Mapper
 public interface StudentMapper extends BaseMapper<Student> {
+
+    @Select("select   s.id,s.user_id,s.student_no,s.real_name,s.gender,s.phone,s.class_id, c.class_code  from students as s left join classes as c on s.class_id = c.id where s.id = #{id}")
+     StudentDetailDTO getStudentAndClassDetail(String id);
 }
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/ClassesService.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/ClassesService.java
index c2972d2..4c8b129 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/ClassesService.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/ClassesService.java
@@ -1,6 +1,7 @@
 package yuxingshi.sms.server.service;
 
 import org.springframework.web.multipart.MultipartFile;
+import yuxingshi.sms.server.domain.dto.stu_class.ClassDetailDTO;
 import yuxingshi.sms.server.domain.dto.stu_class.ClassManageDTO;
 import yuxingshi.sms.server.domain.entity.Classes;
 import yuxingshi.sms.server.domain.dto.stu_class.ClassQueryReqDTO;
@@ -58,4 +59,9 @@ public interface ClassesService {
      * @return 导入结果
      */
     ImportResultDTO importClasses(MultipartFile file);
+
+    /**
+     * 查询班级详情
+     */
+    ClassDetailDTO getClassDetail(String classId);
 }
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/CourseScoreService.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/CourseScoreService.java
deleted file mode 100644
index 0a52ab6..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/CourseScoreService.java
+++ /dev/null
@@ -1,62 +0,0 @@
-package yuxingshi.sms.server.service;
-
-import yuxingshi.sms.server.domain.entity.CourseScore;
-import yuxingshi.sms.server.domain.dto.score.CourseScoreManageDTO;
-import yuxingshi.sms.server.domain.dto.score.CourseScoreQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.score.CourseScoreRespDTO;
-import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
-
-/**
- * 课程成绩服务接口
- */
-public interface CourseScoreService {
-    /**
-     * 为学生添加课程成绩
-     */
-    String addCourseScore(CourseScoreManageDTO dto);
-
-    /**
-     * 更新课程成绩
-     */
-    void updateCourseScore(String scoreId, CourseScoreManageDTO dto);
-
-    /**
-     * 删除课程成绩
-     */
-    void deleteCourseScore(String scoreId);
-
-    /**
-     * 根据ID查询成绩
-     */
-    CourseScore getCourseScoreById(String scoreId);
-
-    /**
-     * 查询学生在某课程的成绩
-     */
-    CourseScore getCourseScore(String courseId, String studentId);
-
-    /**
-     * 批量删除某课程的所有成绩
-     */
-    void deleteCourseAllScores(String courseId);
-
-    /**
-     * 批量删除某学生的所有成绩
-     */
-    void deleteStudentAllScores(String studentId);
-
-    /**
-     * 查询课程成绩列表（分页）
-     */
-    BasePageDTO<CourseScoreRespDTO> queryCourseScores(CourseScoreQueryReqDTO queryReq);
-
-    /**
-     * 查询学生的所有课程成绩（分页）
-     */
-    BasePageDTO<CourseScoreRespDTO> queryStudentScores(String studentId, Integer pageNum, Integer pageSize);
-
-    /**
-     * 查询课程的所有学生成绩（分页）
-     */
-    BasePageDTO<CourseScoreRespDTO> queryCourseStudentScores(String courseId, Integer pageNum, Integer pageSize);
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/CourseService.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/CourseService.java
deleted file mode 100644
index 57186a5..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/CourseService.java
+++ /dev/null
@@ -1,52 +0,0 @@
-package yuxingshi.sms.server.service;
-
-import yuxingshi.sms.server.domain.entity.Course;
-import yuxingshi.sms.server.domain.dto.course.CourseManageDTO;
-import yuxingshi.sms.server.domain.dto.course.CourseQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.course.CourseRespDTO;
-import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
-
-/**
- * 课程服务接口
- */
-public interface CourseService {
-    /**
-     * 创建课程
-     */
-    String createCourse(CourseManageDTO dto);
-
-    /**
-     * 更新课程信息
-     */
-    void updateCourse(String courseId, CourseManageDTO dto);
-
-    /**
-     * 删除课程
-     */
-    void deleteCourse(String courseId);
-
-    /**
-     * 根据ID查询课程
-     */
-    Course getCourseById(String courseId);
-
-    /**
-     * 根据课程代码查询课程
-     */
-    Course getCourseByCode(String courseCode);
-
-    /**
-     * 禁用课程
-     */
-    void disableCourse(String courseId);
-
-    /**
-     * 启用课程
-     */
-    void enableCourse(String courseId);
-
-    /**
-     * 查询课程列表（分页）
-     */
-    BasePageDTO<CourseRespDTO> queryCourses(CourseQueryReqDTO queryReq);
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/StudentService.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/StudentService.java
index c604d1e..8645aeb 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/StudentService.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/StudentService.java
@@ -1,6 +1,7 @@
 package yuxingshi.sms.server.service;
 
 import org.springframework.web.multipart.MultipartFile;
+import yuxingshi.sms.server.domain.dto.stu.StudentDetailDTO;
 import yuxingshi.sms.server.domain.entity.Student;
 import yuxingshi.sms.server.domain.dto.stu.StudentManageDTO;
 import yuxingshi.sms.server.domain.dto.stu.StudentQueryReqDTO;
@@ -61,4 +62,10 @@ public interface StudentService {
      * Excel批量导入学生（需要先创建用户）
      */
     ImportResultDTO importStudents(MultipartFile file);
+
+
+    /**
+     * 查询学生详情
+     */
+    StudentDetailDTO getStudentDetail(String studentId);
 }
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/TeacherService.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/TeacherService.java
index f2076e6..baa54a0 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/TeacherService.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/TeacherService.java
@@ -58,4 +58,11 @@ public interface TeacherService {
      * @return 导入结果
      */
     ImportResultDTO importTeachers(MultipartFile file);
+
+
+
+    /**
+     * 获取教师详情
+     */
+    TeacherRespDTO getTeacherDetail(String teacherId);
 }
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/ClassesServiceImpl.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/ClassesServiceImpl.java
index e71f20c..b33eaee 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/ClassesServiceImpl.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/ClassesServiceImpl.java
@@ -13,15 +13,12 @@ import org.springframework.web.multipart.MultipartFile;
 import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportErrorDTO;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportResultDTO;
+import yuxingshi.sms.common.core.domain.enums.EntityStatus;
 import yuxingshi.sms.common.core.domain.enums.UserStatus;
 import yuxingshi.sms.common.core.exception.ServiceException;
 import yuxingshi.sms.common.core.utils.ExcelImportUtil;
 import yuxingshi.sms.common.core.utils.StringUtil;
-import yuxingshi.sms.server.domain.dto.stu_class.ClassExcelDTO;
-import yuxingshi.sms.server.domain.dto.stu_class.ClassManageDTO;
-import yuxingshi.sms.server.domain.dto.stu_class.ClassQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.stu_class.ClassReadListener;
-import yuxingshi.sms.server.domain.dto.stu_class.ClassRespDTO;
+import yuxingshi.sms.server.domain.dto.stu_class.*;
 import yuxingshi.sms.server.domain.entity.Classes;
 import yuxingshi.sms.server.domain.entity.Major;
 import yuxingshi.sms.server.domain.entity.Student;
@@ -71,7 +68,7 @@ public class ClassesServiceImpl extends ServiceImpl<ClassesMapper, Classes> impl
         classes.setClassCode(dto.getClassCode());
         classes.setMajorId(dto.getMajorId());
         classes.setDescription(dto.getDescription());
-        classes.setStatus(1);
+        classes.setStatus(EntityStatus.ACTIVE.getValue());
         classes.setCreatedTime(LocalDateTime.now());
         classes.setUpdatedTime(LocalDateTime.now());
 
@@ -147,7 +144,7 @@ public class ClassesServiceImpl extends ServiceImpl<ClassesMapper, Classes> impl
         // 更新班级状态
         LambdaUpdateWrapper<Classes> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.eq(Classes::getId, classId)
-                .set(Classes::getStatus, 0)
+                .set(Classes::getStatus, EntityStatus.DISABLED.getValue())
                 .set(Classes::getUpdatedTime, LocalDateTime.now());
         classesMapper.update(null, updateWrapper);
 
@@ -160,7 +157,7 @@ public class ClassesServiceImpl extends ServiceImpl<ClassesMapper, Classes> impl
             // 禁用学生
             LambdaUpdateWrapper<Student> studentUpdateWrapper = new LambdaUpdateWrapper<>();
             studentUpdateWrapper.eq(Student::getId, student.getId())
-                    .set(Student::getStatus, 0)
+                    .set(Student::getStatus, EntityStatus.DISABLED.getValue())
                     .set(Student::getUpdatedTime, LocalDateTime.now());
             studentMapper.update(null, studentUpdateWrapper);
 
@@ -186,7 +183,7 @@ public class ClassesServiceImpl extends ServiceImpl<ClassesMapper, Classes> impl
 
         LambdaUpdateWrapper<Classes> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.eq(Classes::getId, classId)
-                .set(Classes::getStatus, 1)
+                .set(Classes::getStatus, EntityStatus.ACTIVE.getValue())
                 .set(Classes::getUpdatedTime, LocalDateTime.now());
         classesMapper.update(null, updateWrapper);
         log.info("启用班级成功: classId={}", classId);
@@ -234,137 +231,167 @@ public class ClassesServiceImpl extends ServiceImpl<ClassesMapper, Classes> impl
 
     /**
      * 批量导入班级
-     * @param file Excel文件
-     * @return 导入结果
+     * 步骤：文件校验 → 读取Excel → 数据校验 → 冲突检查 → 批量插入
+     * 注意：需要验证专业代码是否存在并获取majorId
      */
     @Transactional
     @Override
     public ImportResultDTO importClasses(MultipartFile file) {
-        // 1. 文件校验
+        // 1. 文件格式和大小校验
         ImportResultDTO validateResult = ExcelImportUtil.validateFile(file, maxFileSize);
-        if (validateResult != null) {
-            return validateResult;
-        }
+        if (validateResult != null) return validateResult;
 
         try {
-            // 2. 读取Excel
-            ClassReadListener listener = new ClassReadListener();
-            ExcelImportUtil.readExcel(file, ClassExcelDTO.class, listener);
+            // 2. 读取Excel数据
+            List<ExcelImportUtil.RowData<ClassExcelDTO>> rows = new ArrayList<>();
+            List<ImportErrorDTO> errors = new ArrayList<>();
+            readClassExcel(file, rows, errors);
 
-            List<ExcelImportUtil.RowData<ClassExcelDTO>> rows = listener.getRows();
-            List<ImportErrorDTO> errors = new ArrayList<>(listener.getErrors());
+            if (rows.isEmpty()) return ImportResultDTO.emptyData(errors);
 
-            if (rows.isEmpty()) {
-                return ImportResultDTO.emptyData(errors);
+            // 3. 校验必填字段和Excel内数据重复性
+            List<ExcelImportUtil.RowData<ClassExcelDTO>> validRows = validateClassData(rows, errors);
+            if (validRows.isEmpty()) {
+                return ImportResultDTO.builder().success(false).totalCount(rows.size()).successCount(0)
+                        .failureCount(errors.size()).errors(errors).message("没有可导入的有效数据").build();
             }
 
-            // 3. 数据校验：必填字段 + Excel内去重
-            Set<String> codesInExcel = new HashSet<>();
-            List<ExcelImportUtil.RowData<ClassExcelDTO>> validRows = new ArrayList<>();
-
-            for (ExcelImportUtil.RowData<ClassExcelDTO> row : rows) {
-                int rowNo = row.getRowNo();
-                ClassExcelDTO data = row.getData();
-                String classCode = data.getClassCode();
-                String majorId = data.getMajorId();
-
-                // 校验必填字段
-                if (StringUtil.isBlank(classCode)) {
-                    errors.add(new ImportErrorDTO(rowNo, "班级代码不能为空", null));
-                    continue;
-                }
-                if (StringUtil.isBlank(majorId)) {
-                    errors.add(new ImportErrorDTO(rowNo, "专业ID不能为空", null));
-                    continue;
-                }
-                // Excel内去重
-                if (!codesInExcel.add(classCode)) {
-                    errors.add(new ImportErrorDTO(rowNo, "Excel内班级代码重复: " + classCode, null));
-                    continue;
-                }
-                validRows.add(row);
+            // 4. 检查数据库冲突（班级代码、专业代码存在性）
+            List<Classes> toInsert = checkClassConflictsAndBuild(validRows, errors);
+
+            // 5. 批量插入班级
+            int successCount = batchInsertClasses(toInsert);
+            log.info("班级批量导入完成: 总数={}, 成功={}, 失败={}", rows.size(), successCount, errors.size());
+
+            return ImportResultDTO.success(rows.size(), successCount, errors);
+        } catch (IOException e) {
+            log.error("读取Excel文件失败", e);
+            return ImportResultDTO.fileError("读取文件失败: " + e.getMessage());
+        }
+    }
+
+    /**
+     * 读取Excel文件，使用ClassReadListener解析数据
+     */
+    private void readClassExcel(MultipartFile file, List<ExcelImportUtil.RowData<ClassExcelDTO>> rows,
+                                List<ImportErrorDTO> errors) throws IOException {
+        ClassReadListener listener = new ClassReadListener();
+        ExcelImportUtil.readExcel(file, ClassExcelDTO.class, listener);
+        rows.addAll(listener.getRows());
+        errors.addAll(listener.getErrors());
+    }
+
+    /**
+     * 校验班级数据的必填字段，并检查Excel内部重复性
+     * 检查项：班级代码、专业代码不能为空；班级代码不能重复
+     */
+    private List<ExcelImportUtil.RowData<ClassExcelDTO>> validateClassData(
+            List<ExcelImportUtil.RowData<ClassExcelDTO>> rows, List<ImportErrorDTO> errors) {
+        Set<String> codesInExcel = new HashSet<>();
+        List<ExcelImportUtil.RowData<ClassExcelDTO>> validRows = new ArrayList<>();
+
+        for (ExcelImportUtil.RowData<ClassExcelDTO> row : rows) {
+            ClassExcelDTO data = row.getData();
+            int rowNo = row.getRowNo();
+
+            // 检查必填字段
+            if (StringUtil.isBlank(data.getClassCode())) {
+                errors.add(new ImportErrorDTO(rowNo, "班级代码不能为空", null));
+                continue;
+            }
+            if (StringUtil.isBlank(data.getMajorCode())) {
+                errors.add(new ImportErrorDTO(rowNo, "专业代码不能为空", null));
+                continue;
             }
+            // 检查Excel内班级代码重复
+            if (!codesInExcel.add(data.getClassCode())) {
+                errors.add(new ImportErrorDTO(rowNo, "Excel内班级代码重复: " + data.getClassCode(), null));
+                continue;
+            }
+            validRows.add(row);
+        }
+        return validRows;
+    }
 
-            if (validRows.isEmpty()) {
-                return ImportResultDTO.builder()
-                        .success(false)
-                        .totalCount(rows.size())
-                        .successCount(0)
-                        .failureCount(errors.size())
-                        .errors(errors)
-                        .message("没有可导入的有效数据")
-                        .build();
+    /**
+     * 检查数据库冲突并构建待插入数据
+     * 检查项：班级代码在Classes表中是否存在、专业代码在Major表中是否存在
+     * 通过专业代码查询获取majorId
+     */
+    private List<Classes> checkClassConflictsAndBuild(
+            List<ExcelImportUtil.RowData<ClassExcelDTO>> validRows, List<ImportErrorDTO> errors) {
+        List<Classes> toInsert = new ArrayList<>();
+
+        // 收集需要检查的班级代码和专业代码
+        List<String> classCodes = validRows.stream()
+                .map(r -> r.getData().getClassCode()).distinct().toList();
+        List<String> majorCodes = validRows.stream()
+                .map(r -> r.getData().getMajorCode()).distinct().toList();
+
+        // 批量查询数据库进行冲突检查
+        Set<String> dbExistCodes = new HashSet<>(
+                classesMapper.selectList(new LambdaQueryWrapper<Classes>().in(Classes::getClassCode, classCodes))
+                        .stream().map(Classes::getClassCode).toList());
+        Map<String, Major> majorMap = majorMapper.selectList(
+                new LambdaQueryWrapper<Major>().in(Major::getMajorCode, majorCodes))
+                .stream().collect(Collectors.toMap(Major::getMajorCode, m -> m));
+
+        // 逐条检查冲突并构建待插入数据
+        for (ExcelImportUtil.RowData<ClassExcelDTO> row : validRows) {
+            ClassExcelDTO data = row.getData();
+            int rowNo = row.getRowNo();
+
+            // 检查班级代码冲突
+            if (dbExistCodes.contains(data.getClassCode())) {
+                errors.add(new ImportErrorDTO(rowNo, "班级代码已存在: " + data.getClassCode(), null));
+                continue;
             }
 
-            // 4. 数据库去重校验
-            List<String> codes = validRows.stream()
-                    .map(r -> r.getData().getClassCode())
-                    .distinct()
-                    .toList();
-
-            Set<String> dbExistSet = new HashSet<>(
-                    classesMapper.selectList(new LambdaQueryWrapper<Classes>().in(Classes::getClassCode, codes))
-                            .stream()
-                            .map(Classes::getClassCode)
-                            .toList()
-            );
-
-            // 5. 校验专业ID是否存在
-            List<String> majorIds = validRows.stream()
-                    .map(r -> r.getData().getMajorId())
-                    .distinct()
-                    .toList();
-
-            Set<String> existMajorIds = new HashSet<>(
-                    majorMapper.selectList(new LambdaQueryWrapper<Major>().in(Major::getId, majorIds))
-                            .stream()
-                            .map(Major::getId)
-                            .toList()
-            );
-
-            // 6. 构建待插入数据
-            List<Classes> toInsert = new ArrayList<>();
-            for (ExcelImportUtil.RowData<ClassExcelDTO> row : validRows) {
-                int rowNo = row.getRowNo();
-                ClassExcelDTO data = row.getData();
-
-                if (dbExistSet.contains(data.getClassCode())) {
-                    errors.add(new ImportErrorDTO(rowNo, "班级代码已存在: " + data.getClassCode(), null));
-                    continue;
-                }
-
-                if (!existMajorIds.contains(data.getMajorId())) {
-                    errors.add(new ImportErrorDTO(rowNo, "专业ID不存在: " + data.getMajorId(), null));
-                    continue;
-                }
-
-                Classes classes = new Classes();
-                classes.setClassCode(data.getClassCode());
-                classes.setMajorId(data.getMajorId());
-                classes.setDescription(data.getDescription());
-                classes.setStatus(1);
-                classes.setCreatedTime(LocalDateTime.now());
-                classes.setUpdatedTime(LocalDateTime.now());
-                toInsert.add(classes);
+            // 检查专业代码存在性
+            Major major = majorMap.get(data.getMajorCode());
+            if (major == null) {
+                errors.add(new ImportErrorDTO(rowNo, "专业代码不存在: " + data.getMajorCode(), null));
+                continue;
             }
 
-            // 7. 批量插入
-            int successCount = 0;
-            if (!toInsert.isEmpty()) {
-                List<List<Classes>> partitions = ExcelImportUtil.partition(toInsert, batchSize);
-                for (List<Classes> batch : partitions) {
-                    if (saveBatch(batch)) {
-                        successCount += batch.size();
-                    }
-                }
+            // 构建待插入的班级对象（使用专业ID而不是专业代码）
+            Classes classes = new Classes();
+            classes.setClassCode(data.getClassCode());
+            classes.setMajorId(major.getId());  // 使用查询到的专业ID
+            classes.setDescription(data.getDescription());
+            classes.setStatus(EntityStatus.ACTIVE.getValue());
+            classes.setCreatedTime(LocalDateTime.now());
+            classes.setUpdatedTime(LocalDateTime.now());
+            toInsert.add(classes);
+        }
+        return toInsert;
+    }
+
+    /**
+     * 批量插入班级数据
+     * 使用MyBatisPlus的saveBatch方法进行批量插入
+     */
+    private int batchInsertClasses(List<Classes> toInsert) {
+        int successCount = 0;
+        if (!toInsert.isEmpty()) {
+            List<List<Classes>> partitions = ExcelImportUtil.partition(toInsert, batchSize);
+            for (List<Classes> batch : partitions) {
+                if (saveBatch(batch)) successCount += batch.size();
             }
+        }
+        return successCount;
+    }
 
-            log.info("班级批量导入完成: 总数={}, 成功={}, 失败={}", rows.size(), successCount, errors.size());
-            return ImportResultDTO.success(rows.size(), successCount, errors);
 
-        } catch (IOException e) {
-            log.error("读取Excel文件失败", e);
-            return ImportResultDTO.fileError("读取文件失败: " + e.getMessage());
+    /**
+     * 查询班级详情
+     */
+    @Override
+    public ClassDetailDTO getClassDetail(String classId) {
+        ClassDetailDTO classDetailDTO = classesMapper.getClassWithMajorById(classId);
+        if(classDetailDTO == null) {
+            throw new ServiceException("班级不存在");
         }
+        return classDetailDTO;
     }
 }
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/CourseScoreServiceImpl.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/CourseScoreServiceImpl.java
deleted file mode 100644
index 5f7c8eb..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/CourseScoreServiceImpl.java
+++ /dev/null
@@ -1,332 +0,0 @@
-package yuxingshi.sms.server.service.impl;
-
-import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
-import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-import yuxingshi.sms.server.domain.entity.Course;
-import yuxingshi.sms.server.domain.entity.CourseScore;
-import yuxingshi.sms.server.domain.entity.Student;
-import yuxingshi.sms.server.domain.dto.score.CourseScoreManageDTO;
-import yuxingshi.sms.server.domain.dto.score.CourseScoreQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.score.CourseScoreRespDTO;
-import yuxingshi.sms.server.mapper.CourseScoreMapper;
-import yuxingshi.sms.server.mapper.CourseMapper;
-import yuxingshi.sms.server.mapper.StudentMapper;
-import yuxingshi.sms.server.service.CourseScoreService;
-import yuxingshi.sms.server.utils.CourseScoreUtil;
-import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
-import yuxingshi.sms.common.core.exception.ServiceException;
-import yuxingshi.sms.common.core.utils.StringUtil;
-
-import java.math.BigDecimal;
-import java.time.LocalDateTime;
-import java.util.List;
-import java.util.stream.Collectors;
-
-@Slf4j
-@Service
-public class CourseScoreServiceImpl implements CourseScoreService {
-
-    @Autowired
-    private CourseScoreMapper courseScoreMapper;
-
-    @Autowired
-    private CourseMapper courseMapper;
-
-    @Autowired
-    private StudentMapper studentMapper;
-
-    @Override
-    public String addCourseScore(CourseScoreManageDTO dto) {
-        // 检查课程是否存在
-        Course course = courseMapper.selectById(dto.getCourseId());
-        if (course == null) {
-            throw new ServiceException("课程不存在");
-        }
-
-        // 检查学生是否存在
-        Student student = studentMapper.selectById(dto.getStudentId());
-        if (student == null) {
-            throw new ServiceException("学生不存在");
-        }
-
-        // 检查该学生是否已有该课程的成绩
-        CourseScore existing = getCourseScore(dto.getCourseId(), dto.getStudentId());
-        if (existing != null) {
-            throw new ServiceException("该学生已有该课程的成绩，请使用更新接口修改");
-        }
-
-        // 计算总成绩和等级
-        BigDecimal totalScore = CourseScoreUtil.calculateTotalScore(
-                dto.getUsualScore(), dto.getMidtermScore(), dto.getFinalScore());
-        String grade = CourseScoreUtil.calculateGrade(totalScore);
-
-        CourseScore courseScore = new CourseScore();
-        courseScore.setCourseId(dto.getCourseId());
-        courseScore.setStudentId(dto.getStudentId());
-        courseScore.setUsualScore(dto.getUsualScore());
-        courseScore.setMidtermScore(dto.getMidtermScore());
-        courseScore.setFinalScore(dto.getFinalScore());
-        courseScore.setTotalScore(totalScore);
-        courseScore.setGrade(grade);
-        courseScore.setRemark(dto.getRemark());
-        courseScore.setStatus(1);
-        courseScore.setCreatedTime(LocalDateTime.now());
-        courseScore.setUpdatedTime(LocalDateTime.now());
-
-        courseScoreMapper.insert(courseScore);
-        log.info("添加课程成绩成功: courseId={}, studentId={}, totalScore={}, grade={}", 
-                dto.getCourseId(), dto.getStudentId(), totalScore, grade);
-        return courseScore.getId();
-    }
-
-    @Override
-    public void updateCourseScore(String scoreId, CourseScoreManageDTO dto) {
-        CourseScore courseScore = getCourseScoreById(scoreId);
-        if (courseScore == null) {
-            throw new ServiceException("成绩不存在");
-        }
-
-        // 检查课程是否存在
-        Course course = courseMapper.selectById(dto.getCourseId());
-        if (course == null) {
-            throw new ServiceException("课程不存在");
-        }
-
-        // 检查学生是否存在
-        Student student = studentMapper.selectById(dto.getStudentId());
-        if (student == null) {
-            throw new ServiceException("学生不存在");
-        }
-
-        // 如果更改了课程或学生，检查新的课程+学生组合是否已存在
-        if (!dto.getCourseId().equals(courseScore.getCourseId()) || 
-            !dto.getStudentId().equals(courseScore.getStudentId())) {
-            CourseScore existing = getCourseScore(dto.getCourseId(), dto.getStudentId());
-            if (existing != null) {
-                throw new ServiceException("该学生已有该课程的成绩");
-            }
-        }
-
-        // 重新计算总成绩和等级
-        BigDecimal totalScore = CourseScoreUtil.calculateTotalScore(
-                dto.getUsualScore(), dto.getMidtermScore(), dto.getFinalScore());
-        String grade = CourseScoreUtil.calculateGrade(totalScore);
-
-        courseScore.setCourseId(dto.getCourseId());
-        courseScore.setStudentId(dto.getStudentId());
-        courseScore.setUsualScore(dto.getUsualScore());
-        courseScore.setMidtermScore(dto.getMidtermScore());
-        courseScore.setFinalScore(dto.getFinalScore());
-        courseScore.setTotalScore(totalScore);
-        courseScore.setGrade(grade);
-        courseScore.setRemark(dto.getRemark());
-        courseScore.setUpdatedTime(LocalDateTime.now());
-
-        courseScoreMapper.updateById(courseScore);
-        log.info("更新课程成绩成功: scoreId={}, totalScore={}, grade={}", scoreId, totalScore, grade);
-    }
-
-    @Override
-    public void deleteCourseScore(String scoreId) {
-        CourseScore courseScore = getCourseScoreById(scoreId);
-        if (courseScore == null) {
-            throw new ServiceException("成绩不存在");
-        }
-
-        courseScoreMapper.deleteById(scoreId);
-        log.info("删除课程成绩成功: scoreId={}", scoreId);
-    }
-
-    @Override
-    public CourseScore getCourseScoreById(String scoreId) {
-        return courseScoreMapper.selectById(scoreId);
-    }
-
-    @Override
-    public CourseScore getCourseScore(String courseId, String studentId) {
-        LambdaQueryWrapper<CourseScore> queryWrapper = new LambdaQueryWrapper<>();
-        queryWrapper.eq(CourseScore::getCourseId, courseId)
-                .eq(CourseScore::getStudentId, studentId)
-                .eq(CourseScore::getStatus, 1);
-        return courseScoreMapper.selectOne(queryWrapper);
-    }
-
-    @Override
-    public void deleteCourseAllScores(String courseId) {
-        LambdaQueryWrapper<CourseScore> queryWrapper = new LambdaQueryWrapper<>();
-        queryWrapper.eq(CourseScore::getCourseId, courseId);
-        courseScoreMapper.delete(queryWrapper);
-        log.info("删除课程所有成绩成功: courseId={}", courseId);
-    }
-
-    @Override
-    public void deleteStudentAllScores(String studentId) {
-        LambdaQueryWrapper<CourseScore> queryWrapper = new LambdaQueryWrapper<>();
-        queryWrapper.eq(CourseScore::getStudentId, studentId);
-        courseScoreMapper.delete(queryWrapper);
-        log.info("删除学生所有成绩成功: studentId={}", studentId);
-    }
-
-    @Override
-    public BasePageDTO<CourseScoreRespDTO> queryCourseScores(CourseScoreQueryReqDTO queryReq) {
-        LambdaQueryWrapper<CourseScore> queryWrapper = new LambdaQueryWrapper<>();
-
-        // 根据课程ID查询
-        if (queryReq.getCourseId() != null) {
-            queryWrapper.eq(CourseScore::getCourseId, queryReq.getCourseId());
-        }
-
-        // 根据学生ID查询
-        if (queryReq.getStudentId() != null) {
-            queryWrapper.eq(CourseScore::getStudentId, queryReq.getStudentId());
-        }
-
-        // 根据等级查询
-        if (StringUtil.isNotEmpty(queryReq.getGrade())) {
-            queryWrapper.eq(CourseScore::getGrade, queryReq.getGrade());
-        }
-
-        // 状态过滤
-        queryWrapper.eq(CourseScore::getStatus, 1);
-
-        // 排序
-        if (StringUtil.isNotEmpty(queryReq.getSortBy())) {
-            if ("total_score".equals(queryReq.getSortBy())) {
-                queryWrapper.orderByDesc(CourseScore::getTotalScore);
-            } else if ("grade".equals(queryReq.getSortBy())) {
-                queryWrapper.orderByAsc(CourseScore::getGrade);
-            } else {
-                queryWrapper.orderByDesc(CourseScore::getCreatedTime);
-            }
-        } else {
-            queryWrapper.orderByDesc(CourseScore::getCreatedTime);
-        }
-
-        // 使用MyBatisPlus分页插件
-        Page<CourseScore> page = new Page<>(queryReq.getPageNo(), queryReq.getPageSize());
-        Page<CourseScore> pageResult = courseScoreMapper.selectPage(page, queryWrapper);
-
-        List<CourseScoreRespDTO> respList = pageResult.getRecords().stream()
-                .map(score -> {
-                    // 查询课程信息
-                    Course course = courseMapper.selectById(score.getCourseId());
-                    // 查询学生信息
-                    Student student = studentMapper.selectById(score.getStudentId());
-                    return CourseScoreRespDTO.builder()
-                            .id(score.getId())
-                            .courseId(score.getCourseId())
-                            .courseName(course != null ? course.getCourseName() : "")
-                            .courseCode(course != null ? course.getCourseCode() : "")
-                            .studentId(score.getStudentId())
-                            .studentNo(student != null ? student.getStudentNo() : "")
-                            .studentName(student != null ? student.getRealName() : "")
-                            .usualScore(score.getUsualScore())
-                            .midtermScore(score.getMidtermScore())
-                            .finalScore(score.getFinalScore())
-                            .totalScore(score.getTotalScore())
-                            .grade(score.getGrade())
-                            .remark(score.getRemark())
-                            .createdTime(score.getCreatedTime())
-                            .updatedTime(score.getUpdatedTime())
-                            .build();
-                })
-                .collect(Collectors.toList());
-
-        return BasePageDTO.<CourseScoreRespDTO>builder()
-                .list(respList)
-                .totals(pageResult.getTotal())
-                .totalPages(BasePageDTO.calculateTotalPages(pageResult.getTotal(), queryReq.getPageSize()))
-                .build();
-    }
-
-    @Override
-    public BasePageDTO<CourseScoreRespDTO> queryStudentScores(String studentId, Integer pageNum, Integer pageSize) {
-        LambdaQueryWrapper<CourseScore> queryWrapper = new LambdaQueryWrapper<>();
-        queryWrapper.eq(CourseScore::getStudentId, studentId)
-                .eq(CourseScore::getStatus, 1)
-                .orderByDesc(CourseScore::getCreatedTime);
-
-        // 使用MyBatisPlus分页插件
-        Page<CourseScore> page = new Page<>(pageNum, pageSize);
-        Page<CourseScore> pageResult = courseScoreMapper.selectPage(page, queryWrapper);
-
-        List<CourseScoreRespDTO> respList = pageResult.getRecords().stream()
-                .map(score -> {
-                    // 查询课程信息
-                    Course course = courseMapper.selectById(score.getCourseId());
-                    // 查询学生信息
-                    Student student = studentMapper.selectById(score.getStudentId());
-                    return CourseScoreRespDTO.builder()
-                            .id(score.getId())
-                            .courseId(score.getCourseId())
-                            .courseName(course != null ? course.getCourseName() : "")
-                            .courseCode(course != null ? course.getCourseCode() : "")
-                            .studentId(score.getStudentId())
-                            .studentNo(student != null ? student.getStudentNo() : "")
-                            .studentName(student != null ? student.getRealName() : "")
-                            .usualScore(score.getUsualScore())
-                            .midtermScore(score.getMidtermScore())
-                            .finalScore(score.getFinalScore())
-                            .totalScore(score.getTotalScore())
-                            .grade(score.getGrade())
-                            .remark(score.getRemark())
-                            .createdTime(score.getCreatedTime())
-                            .updatedTime(score.getUpdatedTime())
-                            .build();
-                })
-                .collect(Collectors.toList());
-
-        return BasePageDTO.<CourseScoreRespDTO>builder()
-                .list(respList)
-                .totals(pageResult.getTotal())
-                .totalPages(BasePageDTO.calculateTotalPages(pageResult.getTotal(), pageSize))
-                .build();
-    }
-
-    @Override
-    public BasePageDTO<CourseScoreRespDTO> queryCourseStudentScores(String courseId, Integer pageNum, Integer pageSize) {
-        LambdaQueryWrapper<CourseScore> queryWrapper = new LambdaQueryWrapper<>();
-        queryWrapper.eq(CourseScore::getCourseId, courseId)
-                .eq(CourseScore::getStatus, 1)
-                .orderByDesc(CourseScore::getTotalScore);
-
-        // 使用MyBatisPlus分页插件
-        Page<CourseScore> page = new Page<>(pageNum, pageSize);
-        Page<CourseScore> pageResult = courseScoreMapper.selectPage(page, queryWrapper);
-
-        List<CourseScoreRespDTO> respList = pageResult.getRecords().stream()
-                .map(score -> {
-                    // 查询课程信息
-                    Course course = courseMapper.selectById(score.getCourseId());
-                    // 查询学生信息
-                    Student student = studentMapper.selectById(score.getStudentId());
-                    return CourseScoreRespDTO.builder()
-                            .id(score.getId())
-                            .courseId(score.getCourseId())
-                            .courseName(course != null ? course.getCourseName() : "")
-                            .courseCode(course != null ? course.getCourseCode() : "")
-                            .studentId(score.getStudentId())
-                            .studentNo(student != null ? student.getStudentNo() : "")
-                            .studentName(student != null ? student.getRealName() : "")
-                            .usualScore(score.getUsualScore())
-                            .midtermScore(score.getMidtermScore())
-                            .finalScore(score.getFinalScore())
-                            .totalScore(score.getTotalScore())
-                            .grade(score.getGrade())
-                            .remark(score.getRemark())
-                            .createdTime(score.getCreatedTime())
-                            .updatedTime(score.getUpdatedTime())
-                            .build();
-                })
-                .collect(Collectors.toList());
-
-        return BasePageDTO.<CourseScoreRespDTO>builder()
-                .list(respList)
-                .totals(pageResult.getTotal())
-                .totalPages(BasePageDTO.calculateTotalPages(pageResult.getTotal(), pageSize))
-                .build();
-    }
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/CourseServiceImpl.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/CourseServiceImpl.java
deleted file mode 100644
index 2e0fd1c..0000000
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/CourseServiceImpl.java
+++ /dev/null
@@ -1,271 +0,0 @@
-package yuxingshi.sms.server.service.impl;
-
-import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
-import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
-import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-import yuxingshi.sms.server.domain.entity.Course;
-import yuxingshi.sms.server.domain.entity.CourseScore;
-import yuxingshi.sms.server.domain.entity.Teacher;
-import yuxingshi.sms.server.domain.dto.course.CourseManageDTO;
-import yuxingshi.sms.server.domain.dto.course.CourseQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.course.CourseRespDTO;
-import yuxingshi.sms.server.mapper.CourseMapper;
-import yuxingshi.sms.server.mapper.CourseScoreMapper;
-import yuxingshi.sms.server.mapper.TeacherMapper;
-import yuxingshi.sms.server.service.CourseService;
-import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
-import yuxingshi.sms.common.core.domain.enums.UserRole;
-import yuxingshi.sms.common.core.exception.ServiceException;
-import yuxingshi.sms.common.core.utils.StringUtil;
-import yuxingshi.sms.common.core.utils.ThreadLocalUtil;
-import yuxingshi.sms.common.core.constants.SecurityConstants;
-
-import java.time.LocalDateTime;
-import java.util.List;
-import java.util.stream.Collectors;
-
-@Slf4j
-@Service
-public class CourseServiceImpl implements CourseService {
-
-    @Autowired
-    private CourseMapper courseMapper;
-
-    @Autowired
-    private TeacherMapper teacherMapper;
-
-    @Autowired
-    private CourseScoreMapper courseScoreMapper;
-
-    @Override
-    public String createCourse(CourseManageDTO dto) {
-        // 检查教师是否存在
-        Teacher teacher = teacherMapper.selectById(dto.getTeacherId());
-        if (teacher == null) {
-            throw new ServiceException("教师不存在");
-        }
-
-        // 权限检查：教师只能为自己创建课程
-        String currentUserId = ThreadLocalUtil.get(SecurityConstants.USER_ID, String.class);
-        Integer userIdentity = ThreadLocalUtil.get(SecurityConstants.USER_IDENTITY, Integer.class);
-
-        // 如果是教师角色，只能为自己创建课程
-        if (UserRole.ROLE_TEACHER.getValue().equals(userIdentity)) {
-            if (teacher.getUserId() == null || !currentUserId.equals(teacher.getUserId())) {
-                throw new ServiceException("无权限为其他教师创建课程");
-            }
-        }
-
-        // 检查课程代码是否已存在
-        Course codeExist = getCourseByCode(dto.getCourseCode());
-        if (codeExist != null) {
-            throw new ServiceException("课程代码已存在");
-        }
-
-        Course course = new Course();
-        course.setTeacherId(dto.getTeacherId());
-        course.setCourseName(dto.getCourseName());
-        course.setCourseCode(dto.getCourseCode());
-        course.setCredit(dto.getCredit());
-        course.setTotalHours(dto.getTotalHours());
-        course.setDescription(dto.getDescription());
-        course.setStatus(1);
-        course.setCreatedTime(LocalDateTime.now());
-        course.setUpdatedTime(LocalDateTime.now());
-
-        courseMapper.insert(course);
-        log.info("创建课程成功: courseCode={}, courseName={}, teacherId={}", dto.getCourseCode(), dto.getCourseName(), dto.getTeacherId());
-        return course.getId();
-    }
-
-    @Override
-    public void updateCourse(String courseId, CourseManageDTO dto) {
-        Course course = getCourseById(courseId);
-        if (course == null) {
-            throw new ServiceException("课程不存在");
-        }
-
-        // 权限检查：教师只能操作自己创建的课程
-        checkCoursePermission(courseId);
-
-        // 检查教师是否存在
-        Teacher teacher = teacherMapper.selectById(dto.getTeacherId());
-        if (teacher == null) {
-            throw new ServiceException("教师不存在");
-        }
-
-        // 检查课程代码是否被其他课程使用
-        if (!dto.getCourseCode().equals(course.getCourseCode())) {
-            Course codeExist = getCourseByCode(dto.getCourseCode());
-            if (codeExist != null) {
-                throw new ServiceException("课程代码已存在");
-            }
-        }
-
-        course.setTeacherId(dto.getTeacherId());
-        course.setCourseName(dto.getCourseName());
-        course.setCourseCode(dto.getCourseCode());
-        course.setCredit(dto.getCredit());
-        course.setTotalHours(dto.getTotalHours());
-        course.setDescription(dto.getDescription());
-        course.setUpdatedTime(LocalDateTime.now());
-
-        courseMapper.updateById(course);
-        log.info("更新课程成功: courseId={}", courseId);
-    }
-
-    @Override
-    public void deleteCourse(String courseId) {
-        Course course = getCourseById(courseId);
-        if (course == null) {
-            throw new ServiceException("课程不存在");
-        }
-
-        // 权限检查：教师只能操作自己创建的课程
-        checkCoursePermission(courseId);
-
-        // 检查是否有关联的成绩记录
-        LambdaQueryWrapper<CourseScore> scoreQuery = new LambdaQueryWrapper<>();
-        scoreQuery.eq(CourseScore::getCourseId, courseId);
-        long scoreCount = courseScoreMapper.selectCount(scoreQuery);
-        if (scoreCount > 0) {
-            throw new ServiceException("课程存在成绩记录，无法删除。请先删除相关成绩记录");
-        }
-
-        courseMapper.deleteById(courseId);
-        log.info("删除课程成功: courseId={}", courseId);
-    }
-
-    @Override
-    public Course getCourseById(String courseId) {
-        return courseMapper.selectById(courseId);
-    }
-
-    @Override
-    public Course getCourseByCode(String courseCode) {
-        LambdaQueryWrapper<Course> queryWrapper = new LambdaQueryWrapper<>();
-        queryWrapper.eq(Course::getCourseCode, courseCode);
-        return courseMapper.selectOne(queryWrapper);
-    }
-
-    @Override
-    public void disableCourse(String courseId) {
-        Course course = getCourseById(courseId);
-        if (course == null) {
-            throw new ServiceException("课程不存在");
-        }
-
-        // 权限检查：教师只能操作自己创建的课程
-        checkCoursePermission(courseId);
-
-        LambdaUpdateWrapper<Course> updateWrapper = new LambdaUpdateWrapper<>();
-        updateWrapper.eq(Course::getId, courseId)
-                .set(Course::getStatus, 0)
-                .set(Course::getUpdatedTime, LocalDateTime.now());
-        courseMapper.update(null, updateWrapper);
-        log.info("禁用课程成功: courseId={}", courseId);
-    }
-
-    @Override
-    public void enableCourse(String courseId) {
-        Course course = getCourseById(courseId);
-        if (course == null) {
-            throw new ServiceException("课程不存在");
-        }
-
-        // 权限检查：教师只能操作自己创建的课程
-        checkCoursePermission(courseId);
-
-        LambdaUpdateWrapper<Course> updateWrapper = new LambdaUpdateWrapper<>();
-        updateWrapper.eq(Course::getId, courseId)
-                .set(Course::getStatus, 1)
-                .set(Course::getUpdatedTime, LocalDateTime.now());
-        courseMapper.update(null, updateWrapper);
-        log.info("启用课程成功: courseId={}", courseId);
-    }
-
-    @Override
-    public BasePageDTO<CourseRespDTO> queryCourses(CourseQueryReqDTO queryReq) {
-        LambdaQueryWrapper<Course> queryWrapper = new LambdaQueryWrapper<>();
-
-        // 根据教师ID查询
-        if (queryReq.getTeacherId() != null) {
-            queryWrapper.eq(Course::getTeacherId, queryReq.getTeacherId());
-        }
-
-        // 根据课程名称模糊查询
-        if (StringUtil.isNotEmpty(queryReq.getCourseName())) {
-            queryWrapper.like(Course::getCourseName, queryReq.getCourseName());
-        }
-
-        // 根据课程代码模糊查询
-        if (StringUtil.isNotEmpty(queryReq.getCourseCode())) {
-            queryWrapper.like(Course::getCourseCode, queryReq.getCourseCode());
-        }
-
-        // 根据状态查询
-        if (queryReq.getStatus() != null) {
-            queryWrapper.eq(Course::getStatus, queryReq.getStatus());
-        }
-
-        // 按创建时间降序排序
-        queryWrapper.orderByDesc(Course::getCreatedTime);
-
-        // 使用MyBatisPlus分页插件
-        Page<Course> page = new Page<>(queryReq.getPageNo(), queryReq.getPageSize());
-        Page<Course> pageResult = courseMapper.selectPage(page, queryWrapper);
-
-        List<CourseRespDTO> respList = pageResult.getRecords().stream()
-                .map(course -> CourseRespDTO.builder()
-                        .id(course.getId())
-                        .teacherId(course.getTeacherId())
-                        .courseName(course.getCourseName())
-                        .courseCode(course.getCourseCode())
-                        .credit(course.getCredit())
-                        .totalHours(course.getTotalHours())
-                        .description(course.getDescription())
-                        .status(course.getStatus())
-                        .createdTime(course.getCreatedTime())
-                        .updatedTime(course.getUpdatedTime())
-                        .build())
-                .collect(Collectors.toList());
-
-        return BasePageDTO.<CourseRespDTO>builder()
-                .list(respList)
-                .totals(pageResult.getTotal())
-                .totalPages(BasePageDTO.calculateTotalPages(pageResult.getTotal(), queryReq.getPageSize()))
-                .build();
-    }
-
-    /**
-     * 检查当前用户是否有权限操作该课程
-     * 管理员和系统管理员可以操作所有课程，教师只能操作自己创建的课程
-     */
-    private void checkCoursePermission(String courseId) {
-        String currentUserId = ThreadLocalUtil.get(SecurityConstants.USER_ID, String.class);
-        Integer userIdentity = ThreadLocalUtil.get(SecurityConstants.USER_IDENTITY, Integer.class);
-
-        // 管理员和系统管理员可以操作所有课程
-        if (UserRole.ROLE_ADMIN.getValue().equals(userIdentity) ||
-                UserRole.ROLE_SYS_ADMIN.getValue().equals(userIdentity)) {
-            return;
-        }
-
-        // 教师只能操作自己创建的课程
-        if (UserRole.ROLE_TEACHER.getValue().equals(userIdentity)) {
-            Course course = getCourseById(courseId);
-            if (course == null) {
-                throw new ServiceException("课程不存在");
-            }
-
-            // 通过teacherId查找对应的userId
-            Teacher teacher = teacherMapper.selectById(course.getTeacherId());
-            if (teacher == null || !currentUserId.equals(teacher.getUserId())) {
-                throw new ServiceException("无权限操作该课程");
-            }
-        }
-    }
-}
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/MajorServiceImpl.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/MajorServiceImpl.java
index 85028ca..8d3afbc 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/MajorServiceImpl.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/MajorServiceImpl.java
@@ -13,6 +13,7 @@ import org.springframework.web.multipart.MultipartFile;
 import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportErrorDTO;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportResultDTO;
+import yuxingshi.sms.common.core.domain.enums.EntityStatus;
 import yuxingshi.sms.common.core.exception.ServiceException;
 import yuxingshi.sms.common.core.utils.ExcelImportUtil;
 import yuxingshi.sms.common.core.utils.StringUtil;
@@ -59,7 +60,7 @@ public class MajorServiceImpl extends ServiceImpl<MajorMapper,Major> implements
         major.setMajorCode(dto.getMajorCode());
         major.setMajorName(dto.getMajorName());
         major.setDescription(dto.getDescription());
-        major.setStatus(1);
+        major.setStatus(EntityStatus.ACTIVE.getValue());
         major.setCreatedTime(LocalDateTime.now());
         major.setUpdatedTime(LocalDateTime.now());
 
@@ -138,7 +139,7 @@ public class MajorServiceImpl extends ServiceImpl<MajorMapper,Major> implements
 
         LambdaUpdateWrapper<Major> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.eq(Major::getId, majorId)
-                .set(Major::getStatus, 0)
+                .set(Major::getStatus, EntityStatus.DISABLED.getValue())
                 .set(Major::getUpdatedTime, LocalDateTime.now());
         majorMapper.update(null, updateWrapper);
 
@@ -154,7 +155,7 @@ public class MajorServiceImpl extends ServiceImpl<MajorMapper,Major> implements
 
         LambdaUpdateWrapper<Major> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.eq(Major::getId, majorId)
-                .set(Major::getStatus, 1)
+                .set(Major::getStatus, EntityStatus.ACTIVE.getValue())
                 .set(Major::getUpdatedTime, LocalDateTime.now());
         majorMapper.update(null, updateWrapper);
 
@@ -202,122 +203,134 @@ public class MajorServiceImpl extends ServiceImpl<MajorMapper,Major> implements
 
     /**
      * 批量导入专业
-     * @param file 文件
-     * @return 导入结果
+     * 步骤：文件校验 → 读取Excel → 数据校验 → 冲突检查 → 批量插入
+     * 这是所有批量导入中最简单的模块，不涉及外键关联
      */
     @Transactional
     @Override
     public ImportResultDTO importMajors(MultipartFile file) {
-        // 1. 文件校验
+        // 1. 文件格式和大小校验
         ImportResultDTO validateResult = ExcelImportUtil.validateFile(file, maxFileSize);
-        if (validateResult != null) {
-            return validateResult;
-        }
+        if (validateResult != null) return validateResult;
 
         try {
-            // 2. 读取Excel
-            MajorReadListener listener = new MajorReadListener();
-            ExcelImportUtil.readExcel(file, MajorExcelDTO.class, listener);
-
-            List<ExcelImportUtil.RowData<MajorExcelDTO>> rows = listener.getRows();
-            List<ImportErrorDTO> errors = new ArrayList<>(listener.getErrors());
+            // 2. 读取Excel数据
+            List<ExcelImportUtil.RowData<MajorExcelDTO>> rows = new ArrayList<>();
+            List<ImportErrorDTO> errors = new ArrayList<>();
+            readMajorExcel(file, rows, errors);
 
-            if (rows.isEmpty()) {
-                return ImportResultDTO.emptyData(errors);
-            }
-
-            // 3. 数据校验：必填字段 + Excel内去重
-            Set<String> codesInExcel = new HashSet<>();
-            List<ExcelImportUtil.RowData<MajorExcelDTO>> validRows = new ArrayList<>();
-
-            for (ExcelImportUtil.RowData<MajorExcelDTO> row : rows) {
-                int rowNo = row.getRowNo();
-                MajorExcelDTO data = row.getData();
-                String code = data.getMajorCode();
-                String name = data.getMajorName();
-
-                // 校验必填字段
-                if (StringUtil.isBlank(code)) {
-                    errors.add(new ImportErrorDTO(rowNo, "专业代码不能为空", null));
-                    continue;
-                }
-                if (StringUtil.isBlank(name)) {
-                    errors.add(new ImportErrorDTO(rowNo, "专业名称不能为空", null));
-                    continue;
-                }
-                // Excel内去重
-                if (!codesInExcel.add(code)) {
-                    errors.add(new ImportErrorDTO(rowNo, "Excel内专业代码重复: " + code, null));
-                    continue;
-                }
-                validRows.add(row);
-            }
+            if (rows.isEmpty()) return ImportResultDTO.emptyData(errors);
 
+            // 3. 校验必填字段和Excel内数据重复性
+            List<ExcelImportUtil.RowData<MajorExcelDTO>> validRows = validateMajorData(rows, errors);
             if (validRows.isEmpty()) {
-                return ImportResultDTO.builder()
-                        .success(false)
-                        .totalCount(rows.size())
-                        .successCount(0)
-                        .failureCount(errors.size())
-                        .errors(errors)
-                        .message("没有可导入的有效数据")
-                        .build();
+                return ImportResultDTO.builder().success(false).totalCount(rows.size()).successCount(0)
+                        .failureCount(errors.size()).errors(errors).message("没有可导入的有效数据").build();
             }
 
-            // 4. 数据库去重校验
-            List<String> codes = validRows.stream()
-                    .map(r -> r.getData().getMajorCode())
-                    .distinct()
-                    .toList();
-
-            Set<String> dbExistSet = new HashSet<>(
-                    majorMapper.selectList(new LambdaQueryWrapper<Major>().in(Major::getMajorCode, codes))
-                            .stream()
-                            .map(Major::getMajorCode)
-                            .toList()
-            );
-
-            // 5. 构建待插入数据
-            List<Major> toInsert = new ArrayList<>();
-            for (ExcelImportUtil.RowData<MajorExcelDTO> row : validRows) {
-                int rowNo = row.getRowNo();
-                MajorExcelDTO data = row.getData();
-
-                if (dbExistSet.contains(data.getMajorCode())) {
-                    errors.add(new ImportErrorDTO(rowNo, "专业代码已存在: " + data.getMajorCode(), null));
-                    continue;
-                }
-
-                Major major = new Major();
-                major.setMajorCode(data.getMajorCode());
-                major.setMajorName(data.getMajorName());
-                major.setDescription(data.getDescription());
-                major.setStatus(1);
-                major.setCreatedTime(LocalDateTime.now());
-                major.setUpdatedTime(LocalDateTime.now());
-                toInsert.add(major);
-            }
-
-            // 6. 批量插入
-            int successCount = 0;
-            if (!toInsert.isEmpty()) {
-                List<List<Major>> partitions = ExcelImportUtil.partition(toInsert, batchSize);
-                for (List<Major> batch : partitions) {
-                    if (saveBatch(batch)) {
-                        successCount += batch.size();
-                    }
-                }
-            }
+            // 4. 检查数据库冲突（专业代码重复性）
+            List<Major> toInsert = checkMajorConflictsAndBuild(validRows, errors);
 
+            // 5. 批量插入专业
+            int successCount = batchInsertMajors(toInsert);
             log.info("专业批量导入完成: 总数={}, 成功={}, 失败={}", rows.size(), successCount, errors.size());
-            return ImportResultDTO.success(rows.size(), successCount, errors);
 
+            return ImportResultDTO.success(rows.size(), successCount, errors);
         } catch (IOException e) {
             log.error("读取Excel文件失败", e);
             return ImportResultDTO.fileError("读取文件失败: " + e.getMessage());
         }
     }
 
+    /**
+     * 读取Excel文件，使用MajorReadListener解析数据
+     */
+    private void readMajorExcel(MultipartFile file, List<ExcelImportUtil.RowData<MajorExcelDTO>> rows,
+                                List<ImportErrorDTO> errors) throws IOException {
+        MajorReadListener listener = new MajorReadListener();
+        ExcelImportUtil.readExcel(file, MajorExcelDTO.class, listener);
+        rows.addAll(listener.getRows());
+        errors.addAll(listener.getErrors());
+    }
+
+    /**
+     * 校验专业数据的必填字段，并检查Excel内部重复性
+     * 检查项：专业代码、专业名称不能为空；专业代码不能重复
+     */
+    private List<ExcelImportUtil.RowData<MajorExcelDTO>> validateMajorData(
+            List<ExcelImportUtil.RowData<MajorExcelDTO>> rows, List<ImportErrorDTO> errors) {
+        Set<String> codesInExcel = new HashSet<>();
+        List<ExcelImportUtil.RowData<MajorExcelDTO>> validRows = new ArrayList<>();
+
+        for (ExcelImportUtil.RowData<MajorExcelDTO> row : rows) {
+            MajorExcelDTO data = row.getData();
+            int rowNo = row.getRowNo();
+
+            // 检查必填字段
+            if (StringUtil.isBlank(data.getMajorCode())) {
+                errors.add(new ImportErrorDTO(rowNo, "专业代码不能为空", null));
+                continue;
+            }
+            if (StringUtil.isBlank(data.getMajorName())) {
+                errors.add(new ImportErrorDTO(rowNo, "专业名称不能为空", null));
+                continue;
+            }
+            // 检查Excel内专业代码重复
+            if (!codesInExcel.add(data.getMajorCode())) {
+                errors.add(new ImportErrorDTO(rowNo, "Excel内专业代码重复: " + data.getMajorCode(), null));
+                continue;
+            }
+            validRows.add(row);
+        }
+        return validRows;
+    }
+
+    private List<Major> checkMajorConflictsAndBuild(
+            List<ExcelImportUtil.RowData<MajorExcelDTO>> validRows, List<ImportErrorDTO> errors) {
+        List<Major> toInsert = new ArrayList<>();
+
+        List<String> codes = validRows.stream()
+                .map(r -> r.getData().getMajorCode()).distinct().toList();
+        Set<String> dbExistSet = new HashSet<>(
+                majorMapper.selectList(new LambdaQueryWrapper<Major>().in(Major::getMajorCode, codes))
+                        .stream().map(Major::getMajorCode).toList());
+
+        for (ExcelImportUtil.RowData<MajorExcelDTO> row : validRows) {
+            MajorExcelDTO data = row.getData();
+            int rowNo = row.getRowNo();
+
+            if (dbExistSet.contains(data.getMajorCode())) {
+                errors.add(new ImportErrorDTO(rowNo, "专业代码已存在: " + data.getMajorCode(), null));
+                continue;
+            }
+
+            Major major = new Major();
+            major.setMajorCode(data.getMajorCode());
+            major.setMajorName(data.getMajorName());
+            major.setDescription(data.getDescription());
+            major.setStatus(EntityStatus.ACTIVE.getValue());
+            major.setCreatedTime(LocalDateTime.now());
+            major.setUpdatedTime(LocalDateTime.now());
+            toInsert.add(major);
+        }
+        return toInsert;
+    }
+
+    /**
+     * 批量插入专业数据
+     * 使用MyBatisPlus的saveBatch方法进行批量插入
+     */
+    private int batchInsertMajors(List<Major> toInsert) {
+        int successCount = 0;
+        if (!toInsert.isEmpty()) {
+            List<List<Major>> partitions = ExcelImportUtil.partition(toInsert, batchSize);
+            for (List<Major> batch : partitions) {
+                if (saveBatch(batch)) successCount += batch.size();
+            }
+        }
+        return successCount;
+    }
+
 
     /**
      * 内部方法：根据ID查询专业实体（用于内部逻辑）
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/StudentServiceImpl.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/StudentServiceImpl.java
index 3bb2b47..1d1e9d0 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/StudentServiceImpl.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/StudentServiceImpl.java
@@ -10,24 +10,18 @@ import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.multipart.MultipartFile;
+import yuxingshi.sms.common.core.domain.enums.EntityStatus;
 import yuxingshi.sms.common.core.utils.ExcelImportUtil;
-import yuxingshi.sms.server.domain.dto.stu.StudentExcelDTO;
-import yuxingshi.sms.server.domain.dto.stu.StudentReadListener;
+import yuxingshi.sms.server.domain.dto.stu.*;
 import yuxingshi.sms.server.domain.entity.Classes;
 import yuxingshi.sms.server.domain.entity.Student;
 import yuxingshi.sms.server.domain.entity.User;
-import yuxingshi.sms.server.domain.dto.stu.StudentManageDTO;
-import yuxingshi.sms.server.domain.dto.stu.StudentQueryReqDTO;
-import yuxingshi.sms.server.domain.dto.stu.StudentRespDTO;
 import yuxingshi.sms.server.mapper.StudentMapper;
 import yuxingshi.sms.server.mapper.ClassesMapper;
 import yuxingshi.sms.server.mapper.UserMapper;
-import yuxingshi.sms.server.mapper.CourseScoreMapper;
-import yuxingshi.sms.server.domain.entity.CourseScore;
 import yuxingshi.sms.server.service.StudentService;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportResultDTO;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportErrorDTO;
-import yuxingshi.sms.server.utils.PasswordGeneratorUtil;
 import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
 import yuxingshi.sms.common.core.domain.enums.UserStatus;
 import yuxingshi.sms.common.core.exception.ServiceException;
@@ -51,9 +45,6 @@ public class StudentServiceImpl implements StudentService {
     @Autowired
     private UserMapper userMapper;
 
-    @Autowired
-    private CourseScoreMapper courseScoreMapper;
-
     @Autowired
     private BCryptPasswordEncoder passwordEncoder;
 
@@ -63,6 +54,7 @@ public class StudentServiceImpl implements StudentService {
     @Value("${app.import.student.max-file-size-bytes:5242880}")
     private long maxFileSize;
 
+    @Transactional
     @Override
     public String createStudent(String userId, StudentManageDTO dto) {
         // 检查学号是否已存在
@@ -88,13 +80,10 @@ public class StudentServiceImpl implements StudentService {
                 throw new ServiceException("学号对应的用户名已存在");
             }
 
-            // 生成随机密码
-            String randomPassword = PasswordGeneratorUtil.generatePassword();
-
-            // 创建用户账号
+            // 创建用户账号，密码默认为学号
             User user = new User();
             user.setUsername(dto.getStudentNo());
-            user.setPassword(passwordEncoder.encode(randomPassword));
+            user.setPassword(passwordEncoder.encode(dto.getStudentNo()));
             user.setEmail(null);
             user.setRole(4);  // 学生角色
             user.setStatus(UserStatus.ACTIVE.getValue());
@@ -103,7 +92,7 @@ public class StudentServiceImpl implements StudentService {
             userMapper.insert(user);
 
             finalUserId = user.getId();
-            log.info("为学生创建账号成功: studentNo={}, username={}, password={}", dto.getStudentNo(), dto.getStudentNo(), randomPassword);
+            log.info("为学生创建账号成功: studentNo={}, username={}", dto.getStudentNo(), dto.getStudentNo());
         } else {
             // 如果提供了userId，检查该用户是否已作为学生存在
             Student existStudent = getStudentByUserId(userId);
@@ -119,7 +108,7 @@ public class StudentServiceImpl implements StudentService {
         student.setRealName(dto.getRealName());
         student.setGender(dto.getGender());
         student.setPhone(dto.getPhone());
-        student.setStatus(1);
+        student.setStatus(EntityStatus.ACTIVE.getValue());
         student.setCreatedTime(LocalDateTime.now());
         student.setUpdatedTime(LocalDateTime.now());
 
@@ -165,15 +154,6 @@ public class StudentServiceImpl implements StudentService {
             throw new ServiceException("学生不存在");
         }
 
-        // 检查是否有关联的成绩数据
-        LambdaQueryWrapper<CourseScore> scoreWrapper = new LambdaQueryWrapper<>();
-        scoreWrapper.eq(CourseScore::getStudentId, studentId)
-                .eq(CourseScore::getStatus, 1);
-        long scoreCount = courseScoreMapper.selectCount(scoreWrapper);
-        if (scoreCount > 0) {
-            throw new ServiceException("该学生存在关联的成绩数据，无法删除");
-        }
-
         studentMapper.deleteById(studentId);
         log.info("删除学生成功: studentId={}", studentId);
     }
@@ -208,7 +188,7 @@ public class StudentServiceImpl implements StudentService {
         // 更新学生状态
         LambdaUpdateWrapper<Student> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.eq(Student::getId, studentId)
-                .set(Student::getStatus, 0)
+                .set(Student::getStatus, EntityStatus.DISABLED.getValue())
                 .set(Student::getUpdatedTime, LocalDateTime.now());
         studentMapper.update(null, updateWrapper);
 
@@ -235,7 +215,7 @@ public class StudentServiceImpl implements StudentService {
         // 更新学生状态
         LambdaUpdateWrapper<Student> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.eq(Student::getId, studentId)
-                .set(Student::getStatus, 1)
+                .set(Student::getStatus, EntityStatus.ACTIVE.getValue())
                 .set(Student::getUpdatedTime, LocalDateTime.now());
         studentMapper.update(null, updateWrapper);
 
@@ -308,170 +288,38 @@ public class StudentServiceImpl implements StudentService {
 
     /**
      * 批量导入学生
-     * @param file Excel文件
-     * @return 导入结果
+     * 步骤：文件校验 → 读取Excel → 数据校验 → 冲突检查 → 批量插入
+     * 注意：需要同时插入User表和Student表，使用事务保证一致性
      */
     @Transactional
     @Override
     public ImportResultDTO importStudents(MultipartFile file) {
-        // 1. 文件校验
+        // 1. 文件格式和大小校验
         ImportResultDTO validateResult = ExcelImportUtil.validateFile(file, maxFileSize);
-        if (validateResult != null) {
-            return validateResult;
-        }
+        if (validateResult != null) return validateResult;
 
         try {
-            // 2. 读取Excel
-            StudentReadListener listener = new StudentReadListener();
-            ExcelImportUtil.readExcel(file, StudentExcelDTO.class, listener);
+            // 2. 读取Excel数据
+            List<ExcelImportUtil.RowData<StudentExcelDTO>> rows = new ArrayList<>();
+            List<ImportErrorDTO> errors = new ArrayList<>();
+            readStudentExcel(file, rows, errors);
 
-            List<ExcelImportUtil.RowData<StudentExcelDTO>> rows = listener.getRows();
-            List<ImportErrorDTO> errors = new ArrayList<>(listener.getErrors());
-
-            if (rows.isEmpty()) {
-                return ImportResultDTO.emptyData(errors);
-            }
-
-            // 3. 数据校验：必填字段 + Excel内去重
-            Set<String> studentNosInExcel = new HashSet<>();
-            List<ExcelImportUtil.RowData<StudentExcelDTO>> validRows = new ArrayList<>();
-
-            for (ExcelImportUtil.RowData<StudentExcelDTO> row : rows) {
-                int rowNo = row.getRowNo();
-                StudentExcelDTO data = row.getData();
-                String studentNo = data.getStudentNo();
-                String realName = data.getRealName();
-                String classCode = data.getClassCode();
-
-                // 校验必填字段
-                if (StringUtil.isBlank(studentNo)) {
-                    errors.add(new ImportErrorDTO(rowNo, "学号不能为空", null));
-                    continue;
-                }
-                if (StringUtil.isBlank(realName)) {
-                    errors.add(new ImportErrorDTO(rowNo, "真实姓名不能为空", null));
-                    continue;
-                }
-                if (StringUtil.isBlank(classCode)) {
-                    errors.add(new ImportErrorDTO(rowNo, "班级代码不能为空", null));
-                    continue;
-                }
-                // Excel内去重
-                if (!studentNosInExcel.add(studentNo)) {
-                    errors.add(new ImportErrorDTO(rowNo, "Excel内学号重复: " + studentNo, null));
-                    continue;
-                }
-                validRows.add(row);
-            }
+            if (rows.isEmpty()) return ImportResultDTO.emptyData(errors);
 
+            // 3. 校验必填字段和Excel内数据重复性
+            List<ExcelImportUtil.RowData<StudentExcelDTO>> validRows = validateStudentData(rows, errors);
             if (validRows.isEmpty()) {
                 return ExcelImportUtil.buildNoValidDataResult(rows.size(), errors);
             }
 
-            // 4. 数据库去重校验（学号）
-            List<String> studentNos = validRows.stream()
-                    .map(r -> r.getData().getStudentNo())
-                    .distinct()
-                    .toList();
-
-            Set<String> dbExistStudentNos = new HashSet<>(
-                    studentMapper.selectList(new LambdaQueryWrapper<Student>().in(Student::getStudentNo, studentNos))
-                            .stream()
-                            .map(Student::getStudentNo)
-                            .toList()
-            );
-
-            // 5. 校验用户名是否已存在
-            Set<String> dbExistUsernames = new HashSet<>(
-                    userMapper.selectList(new LambdaQueryWrapper<User>().in(User::getUsername, studentNos))
-                            .stream()
-                            .map(User::getUsername)
-                            .toList()
-            );
-
-            // 6. 批量查询班级是否存在
-            List<String> classCodes = validRows.stream()
-                    .map(r -> r.getData().getClassCode())
-                    .distinct()
-                    .toList();
-
-            Map<String, Classes> classMap = classesMapper.selectList(
-                    new LambdaQueryWrapper<Classes>().in(Classes::getClassCode, classCodes)
-            ).stream().collect(Collectors.toMap(Classes::getClassCode, c -> c));
-
-            // 7. 构建待插入数据
-            List<StudentData> toInsert = new ArrayList<>();
-            for (ExcelImportUtil.RowData<StudentExcelDTO> row : validRows) {
-                int rowNo = row.getRowNo();
-                StudentExcelDTO data = row.getData();
-
-                if (dbExistStudentNos.contains(data.getStudentNo())) {
-                    errors.add(new ImportErrorDTO(rowNo, "学号已存在: " + data.getStudentNo(), null));
-                    continue;
-                }
-
-                if (dbExistUsernames.contains(data.getStudentNo())) {
-                    errors.add(new ImportErrorDTO(rowNo, "用户名已存在: " + data.getStudentNo(), null));
-                    continue;
-                }
-
-                Classes classes = classMap.get(data.getClassCode());
-                if (classes == null) {
-                    errors.add(new ImportErrorDTO(rowNo, "班级代码不存在: " + data.getClassCode(), null));
-                    continue;
-                }
-
-                StudentData studentData = new StudentData();
-                studentData.data = data;
-                studentData.classId = classes.getId();
-                studentData.password = PasswordGeneratorUtil.generatePassword();
-                toInsert.add(studentData);
-            }
-
-            // 8. 批量插入（需要先创建用户，再创建学生）
-            int successCount = 0;
-            if (!toInsert.isEmpty()) {
-                List<List<StudentData>> partitions = ExcelImportUtil.partition(toInsert, batchSize);
-                for (List<StudentData> batch : partitions) {
-                    for (StudentData sd : batch) {
-                        try {
-                            // 创建用户账号
-                            User user = new User();
-                            user.setUsername(sd.data.getStudentNo());
-                            user.setPassword(passwordEncoder.encode(sd.password));
-                            user.setEmail(null);
-                            user.setRole(4);  // 学生角色
-                            user.setStatus(UserStatus.ACTIVE.getValue());
-                            user.setCreatedTime(LocalDateTime.now());
-                            user.setUpdatedTime(LocalDateTime.now());
-                            userMapper.insert(user);
-
-                            // 创建学生信息
-                            Student student = new Student();
-                            student.setUserId(user.getId());
-                            student.setClassId(sd.classId);
-                            student.setStudentNo(sd.data.getStudentNo());
-                            student.setRealName(sd.data.getRealName());
-                            student.setGender(parseGender(sd.data.getGender()));
-                            student.setPhone(sd.data.getPhone());
-                            student.setStatus(1);
-                            student.setCreatedTime(LocalDateTime.now());
-                            student.setUpdatedTime(LocalDateTime.now());
-                            studentMapper.insert(student);
-
-                            successCount++;
-                            log.info("导入学生成功: studentNo={}, realName={}, password={}",
-                                    sd.data.getStudentNo(), sd.data.getRealName(), sd.password);
-                        } catch (Exception e) {
-                            log.error("导入学生失败: studentNo={}", sd.data.getStudentNo(), e);
-                        }
-                    }
-                }
-            }
+            // 4. 检查数据库冲突（学号、用户名、班级代码）
+            List<StudentData> toInsert = checkStudentConflictsAndBuild(validRows, errors);
 
+            // 5. 批量插入：先插入User表，再插入Student表
+            int successCount = insertStudentsWithUsers(toInsert);
             log.info("学生批量导入完成: 总数={}, 成功={}, 失败={}", rows.size(), successCount, errors.size());
-            return ImportResultDTO.success(rows.size(), successCount, errors);
 
+            return ImportResultDTO.success(rows.size(), successCount, errors);
         } catch (IOException e) {
             log.error("读取Excel文件失败", e);
             return ImportResultDTO.fileError("读取文件失败: " + e.getMessage());
@@ -479,12 +327,246 @@ public class StudentServiceImpl implements StudentService {
     }
 
     /**
-     * 学生数据临时类（包含密码和班级ID）
+     * 读取Excel文件，使用StudentReadListener解析数据
+     */
+    private void readStudentExcel(MultipartFile file, List<ExcelImportUtil.RowData<StudentExcelDTO>> rows,
+                                   List<ImportErrorDTO> errors) throws IOException {
+        StudentReadListener listener = new StudentReadListener();
+        ExcelImportUtil.readExcel(file, StudentExcelDTO.class, listener);
+        rows.addAll(listener.getRows());
+        errors.addAll(listener.getErrors());
+    }
+
+    /**
+     * 校验学生数据的必填字段，并检查Excel内部重复性
+     * 检查项：学号、真实姓名、班级代码不能为空；学号不能重复
+     */
+    private List<ExcelImportUtil.RowData<StudentExcelDTO>> validateStudentData(
+            List<ExcelImportUtil.RowData<StudentExcelDTO>> rows, List<ImportErrorDTO> errors) {
+        Set<String> studentNosInExcel = new HashSet<>();
+        List<ExcelImportUtil.RowData<StudentExcelDTO>> validRows = new ArrayList<>();
+
+        for (ExcelImportUtil.RowData<StudentExcelDTO> row : rows) {
+            int rowNo = row.getRowNo();
+            StudentExcelDTO data = row.getData();
+
+            // 检查必填字段
+            if (StringUtil.isBlank(data.getStudentNo())) {
+                errors.add(new ImportErrorDTO(rowNo, "学号不能为空", null));
+                continue;
+            }
+            if (StringUtil.isBlank(data.getRealName())) {
+                errors.add(new ImportErrorDTO(rowNo, "真实姓名不能为空", null));
+                continue;
+            }
+            if (StringUtil.isBlank(data.getClassCode())) {
+                errors.add(new ImportErrorDTO(rowNo, "班级代码不能为空", null));
+                continue;
+            }
+            // 检查Excel内学号重复
+            if (!studentNosInExcel.add(data.getStudentNo())) {
+                errors.add(new ImportErrorDTO(rowNo, "Excel内学号重复: " + data.getStudentNo(), null));
+                continue;
+            }
+            validRows.add(row);
+        }
+        return validRows;
+    }
+
+    /**
+     * 检查数据库冲突并构建待插入数据
+     * 检查项：学号在Student表中是否存在、用户名在User表中是否存在、班级代码是否存在
+     */
+    private List<StudentData> checkStudentConflictsAndBuild(
+            List<ExcelImportUtil.RowData<StudentExcelDTO>> validRows, List<ImportErrorDTO> errors) {
+        List<StudentData> toInsert = new ArrayList<>();
+
+        // 收集需要检查的学号和班级代码
+        List<String> studentNos = validRows.stream()
+                .map(r -> r.getData().getStudentNo()).distinct().toList();
+        List<String> classCodes = validRows.stream()
+                .map(r -> r.getData().getClassCode()).distinct().toList();
+
+        // 批量查询数据库进行冲突检查
+        Set<String> dbExistStudentNos = queryExistingStudentNos(studentNos);
+        Set<String> dbExistUsernames = queryExistingUsernames(studentNos);
+        Map<String, Classes> classMap = queryClassesByCode(classCodes);
+
+        // 逐条检查冲突并构建待插入数据
+        for (ExcelImportUtil.RowData<StudentExcelDTO> row : validRows) {
+            int rowNo = row.getRowNo();
+            StudentExcelDTO data = row.getData();
+
+            // 检查学号和用户名冲突
+            if (dbExistStudentNos.contains(data.getStudentNo())) {
+                errors.add(new ImportErrorDTO(rowNo, "学号已存在: " + data.getStudentNo(), null));
+                continue;
+            }
+            if (dbExistUsernames.contains(data.getStudentNo())) {
+                errors.add(new ImportErrorDTO(rowNo, "用户名已存在: " + data.getStudentNo(), null));
+                continue;
+            }
+
+            // 检查班级代码存在性
+            Classes classes = classMap.get(data.getClassCode());
+            if (classes == null) {
+                errors.add(new ImportErrorDTO(rowNo, "班级代码不存在: " + data.getClassCode(), null));
+                continue;
+            }
+
+            // 构建待插入数据（包含班级ID）
+            StudentData studentData = new StudentData();
+            studentData.data = data;
+            studentData.classId = classes.getId();
+            toInsert.add(studentData);
+        }
+        return toInsert;
+    }
+
+    /**
+     * 批量查询已存在的学号
+     */
+    private Set<String> queryExistingStudentNos(List<String> studentNos) {
+        return new HashSet<>(
+                studentMapper.selectList(new LambdaQueryWrapper<Student>().in(Student::getStudentNo, studentNos))
+                        .stream().map(Student::getStudentNo).toList()
+        );
+    }
+
+    /**
+     * 批量查询已存在的用户名
+     */
+    private Set<String> queryExistingUsernames(List<String> studentNos) {
+        return new HashSet<>(
+                userMapper.selectList(new LambdaQueryWrapper<User>().in(User::getUsername, studentNos))
+                        .stream().map(User::getUsername).toList()
+        );
+    }
+
+    /**
+     * 批量查询班级，返回班级代码到班级对象的映射
+     */
+    private Map<String, Classes> queryClassesByCode(List<String> classCodes) {
+        return classesMapper.selectList(
+                new LambdaQueryWrapper<Classes>().in(Classes::getClassCode, classCodes)
+        ).stream().collect(Collectors.toMap(Classes::getClassCode, c -> c));
+    }
+
+    /**
+     * 批量插入学生和对应的用户账号
+     * 流程：构建User→批量插入→查询userId映射→构建Student→批量插入
+     * 注意：User和Student表通过userId关联
+     */
+    private int insertStudentsWithUsers(List<StudentData> toInsert) {
+        if (toInsert.isEmpty()) return 0;
+
+        // 1. 构建并批量插入User对象（密码默认为学号）
+        List<User> usersToInsert = buildUsersForStudents(toInsert);
+        batchInsertUsers(usersToInsert);
+
+        // 2. 查询插入后的User，获取userId映射
+        List<String> insertedStudentNos = toInsert.stream()
+                .map(sd -> sd.data.getStudentNo()).toList();
+        Map<String, String> userIdMap = queryUserIdsByStudentNos(insertedStudentNos);
+
+        // 3. 构建并批量插入Student对象
+        List<Student> studentsToInsert = buildStudentsWithUserIds(toInsert, userIdMap);
+        batchInsertStudents(studentsToInsert);
+
+        return studentsToInsert.size();
+    }
+
+    /**
+     * 为学生批量构建User对象
+     * 用户名=学号，密码=学号，角色=学生
+     */
+    private List<User> buildUsersForStudents(List<StudentData> toInsert) {
+        return toInsert.stream().map(sd -> {
+            User user = new User();
+            user.setUsername(sd.data.getStudentNo());
+            user.setPassword(passwordEncoder.encode(sd.data.getStudentNo()));
+            user.setEmail(null);
+            user.setRole(4);  // 学生角色
+            user.setStatus(UserStatus.ACTIVE.getValue());
+            user.setCreatedTime(LocalDateTime.now());
+            user.setUpdatedTime(LocalDateTime.now());
+            return user;
+        }).toList();
+    }
+
+    /**
+     * 批量插入User对象
+     */
+    private void batchInsertUsers(List<User> users) {
+        List<List<User>> partitions = ExcelImportUtil.partition(users, batchSize);
+        for (List<User> batch : partitions) {
+            userMapper.insert(batch);
+        }
+    }
+
+    /**
+     * 按学号查询User的ID映射（学号 → userId）
+     */
+    private Map<String, String> queryUserIdsByStudentNos(List<String> studentNos) {
+        return userMapper.selectList(new LambdaQueryWrapper<User>().in(User::getUsername, studentNos))
+                .stream().collect(Collectors.toMap(User::getUsername, User::getId));
+    }
+
+    /**
+     * 构建Student对象，使用userId与User表关联
+     */
+    private List<Student> buildStudentsWithUserIds(List<StudentData> toInsert, Map<String, String> userIdMap) {
+        return toInsert.stream()
+                .map(sd -> {
+                    String userId = userIdMap.get(sd.data.getStudentNo());
+                    if (userId == null) return null;
+
+                    Student student = new Student();
+                    student.setUserId(userId);
+                    student.setClassId(sd.classId);
+                    student.setStudentNo(sd.data.getStudentNo());
+                    student.setRealName(sd.data.getRealName());
+                    student.setGender(parseGender(sd.data.getGender()));
+                    student.setPhone(sd.data.getPhone());
+                    student.setStatus(EntityStatus.ACTIVE.getValue());
+                    student.setCreatedTime(LocalDateTime.now());
+                    student.setUpdatedTime(LocalDateTime.now());
+                    return student;
+                })
+                .filter(Objects::nonNull)
+                .toList();
+    }
+
+    /**
+     * 批量插入Student对象
+     */
+    private void batchInsertStudents(List<Student> students) {
+        List<List<Student>> partitions = ExcelImportUtil.partition(students, batchSize);
+        for (List<Student> batch : partitions) {
+            studentMapper.insert(batch);
+        }
+    }
+
+
+
+    /**
+     * 查询学生详情
+     */
+    @Override
+    public StudentDetailDTO getStudentDetail(String studentId) {
+        StudentDetailDTO studentDetail = studentMapper.getStudentAndClassDetail(studentId);
+        if(studentDetail == null) {
+            throw new ServiceException("学生不存在");
+        }
+        return studentDetail;
+    }
+
+    /**
+     * 学生数据临时类（包含班级ID）
      */
     private static class StudentData {
         StudentExcelDTO data;
         String classId;
-        String password;
     }
 
     /**
diff --git a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/TeacherServiceImpl.java b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/TeacherServiceImpl.java
index bff227d..a5218ee 100644
--- a/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/TeacherServiceImpl.java
+++ b/yuxingshi-sms-server/src/main/java/yuxingshi/sms/server/service/impl/TeacherServiceImpl.java
@@ -13,8 +13,10 @@ import org.springframework.web.multipart.MultipartFile;
 import yuxingshi.sms.common.core.domain.dto.BasePageDTO;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportErrorDTO;
 import yuxingshi.sms.common.core.domain.dto.excel.ImportResultDTO;
+import yuxingshi.sms.common.core.domain.enums.EntityStatus;
 import yuxingshi.sms.common.core.domain.enums.UserStatus;
 import yuxingshi.sms.common.core.exception.ServiceException;
+import yuxingshi.sms.common.core.utils.BeanCopyUtil;
 import yuxingshi.sms.common.core.utils.ExcelImportUtil;
 import yuxingshi.sms.common.core.utils.StringUtil;
 import yuxingshi.sms.server.domain.dto.teacher.TeacherExcelDTO;
@@ -24,11 +26,9 @@ import yuxingshi.sms.server.domain.dto.teacher.TeacherReadListener;
 import yuxingshi.sms.server.domain.dto.teacher.TeacherRespDTO;
 import yuxingshi.sms.server.domain.entity.Teacher;
 import yuxingshi.sms.server.domain.entity.User;
-import yuxingshi.sms.server.mapper.CourseMapper;
 import yuxingshi.sms.server.mapper.TeacherMapper;
 import yuxingshi.sms.server.mapper.UserMapper;
 import yuxingshi.sms.server.service.TeacherService;
-import yuxingshi.sms.server.utils.PasswordGeneratorUtil;
 
 import java.io.IOException;
 import java.time.LocalDateTime;
@@ -45,8 +45,6 @@ public class TeacherServiceImpl implements TeacherService {
     @Autowired
     private UserMapper userMapper;
 
-    @Autowired
-    private CourseMapper courseMapper;
 
     @Autowired
     private BCryptPasswordEncoder passwordEncoder;
@@ -66,13 +64,10 @@ public class TeacherServiceImpl implements TeacherService {
             throw new ServiceException("教师工号已存在");
         }
 
-        // 生成随机密码
-        String randomPassword = PasswordGeneratorUtil.generatePassword();
-
-        // 创建用户账号
+        // 创建用户账号，密码默认为工号
         User user = new User();
         user.setUsername(dto.getTeacherNo());
-        user.setPassword(passwordEncoder.encode(randomPassword));
+        user.setPassword(passwordEncoder.encode(dto.getTeacherNo()));
         user.setEmail(null);
         user.setRole(3);  // 教师角色
         user.setStatus(UserStatus.ACTIVE.getValue());
@@ -87,12 +82,12 @@ public class TeacherServiceImpl implements TeacherService {
         teacher.setRealName(dto.getRealName());
         teacher.setDepartment(dto.getDepartment());
         teacher.setPhone(dto.getPhone());
-        teacher.setStatus(1);
+        teacher.setStatus(EntityStatus.ACTIVE.getValue());
         teacher.setCreatedTime(LocalDateTime.now());
         teacher.setUpdatedTime(LocalDateTime.now());
 
         teacherMapper.insert(teacher);
-        log.info("创建教师成功: teacherNo={}, realName={}, password={}", dto.getTeacherNo(), dto.getRealName(), randomPassword);
+        log.info("创建教师成功: teacherNo={}, realName={}", dto.getTeacherNo(), dto.getRealName());
         return teacher.getId();
     }
 
@@ -139,14 +134,6 @@ public class TeacherServiceImpl implements TeacherService {
             throw new ServiceException("教师不存在");
         }
 
-        // 检查是否有关联的课程
-        LambdaQueryWrapper<yuxingshi.sms.server.domain.entity.Course> courseQuery = new LambdaQueryWrapper<>();
-        courseQuery.eq(yuxingshi.sms.server.domain.entity.Course::getTeacherId, teacherId);
-        long courseCount = courseMapper.selectCount(courseQuery);
-        if (courseCount > 0) {
-            throw new ServiceException("教师关联了课程，无法删除。请先删除相关课程");
-        }
-
         // 删除教师记录
         teacherMapper.deleteById(teacherId);
 
@@ -182,7 +169,7 @@ public class TeacherServiceImpl implements TeacherService {
         // 更新教师状态
         LambdaUpdateWrapper<Teacher> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.eq(Teacher::getId, teacherId)
-                .set(Teacher::getStatus, 0)
+                .set(Teacher::getStatus, EntityStatus.DISABLED.getValue())
                 .set(Teacher::getUpdatedTime, LocalDateTime.now());
         teacherMapper.update(null, updateWrapper);
 
@@ -209,7 +196,7 @@ public class TeacherServiceImpl implements TeacherService {
         // 更新教师状态
         LambdaUpdateWrapper<Teacher> updateWrapper = new LambdaUpdateWrapper<>();
         updateWrapper.eq(Teacher::getId, teacherId)
-                .set(Teacher::getStatus, 1)
+                .set(Teacher::getStatus, EntityStatus.ACTIVE.getValue())
                 .set(Teacher::getUpdatedTime, LocalDateTime.now());
         teacherMapper.update(null, updateWrapper);
 
@@ -278,154 +265,41 @@ public class TeacherServiceImpl implements TeacherService {
 
     /**
      * 批量导入教师
-     * @param file Excel文件
-     * @return 导入结果
+     * 步骤：文件校验 → 读取Excel → 数据校验 → 冲突检查 → 批量插入
+     * 注意：需要同时插入User表和Teacher表，使用事务保��一致性
      */
     @Transactional
     @Override
     public ImportResultDTO importTeachers(MultipartFile file) {
-        // 1. 文件校验
+        // 1. 文件格式和大小校验
         ImportResultDTO validateResult = ExcelImportUtil.validateFile(file, maxFileSize);
-        if (validateResult != null) {
-            return validateResult;
-        }
+        if (validateResult != null) return validateResult;
 
         try {
-            // 2. 读取Excel
-            TeacherReadListener listener = new TeacherReadListener();
-            ExcelImportUtil.readExcel(file, TeacherExcelDTO.class, listener);
+            // 2. 读取Excel数据
+            List<ExcelImportUtil.RowData<TeacherExcelDTO>> rows = new ArrayList<>();
+            List<ImportErrorDTO> errors = new ArrayList<>();
+            readTeacherExcel(file, rows, errors);
 
-            List<ExcelImportUtil.RowData<TeacherExcelDTO>> rows = listener.getRows();
-            List<ImportErrorDTO> errors = new ArrayList<>(listener.getErrors());
-
-            if (rows.isEmpty()) {
-                return ImportResultDTO.emptyData(errors);
-            }
-
-            // 3. 数据校验：必填字段 + Excel内去重
-            Set<String> teacherNosInExcel = new HashSet<>();
-            List<ExcelImportUtil.RowData<TeacherExcelDTO>> validRows = new ArrayList<>();
-
-            for (ExcelImportUtil.RowData<TeacherExcelDTO> row : rows) {
-                int rowNo = row.getRowNo();
-                TeacherExcelDTO data = row.getData();
-                String teacherNo = data.getTeacherNo();
-                String realName = data.getRealName();
-
-                // 校验必填字段
-                if (StringUtil.isBlank(teacherNo)) {
-                    errors.add(new ImportErrorDTO(rowNo, "教师工号不能为空", null));
-                    continue;
-                }
-                if (StringUtil.isBlank(realName)) {
-                    errors.add(new ImportErrorDTO(rowNo, "教师姓名不能为空", null));
-                    continue;
-                }
-                // Excel内去重
-                if (!teacherNosInExcel.add(teacherNo)) {
-                    errors.add(new ImportErrorDTO(rowNo, "Excel内教师工号重复: " + teacherNo, null));
-                    continue;
-                }
-                validRows.add(row);
-            }
+            if (rows.isEmpty()) return ImportResultDTO.emptyData(errors);
 
+            // 3. 校验必填字段和Excel内数据重复性
+            List<ExcelImportUtil.RowData<TeacherExcelDTO>> validRows = validateTeacherData(rows, errors);
             if (validRows.isEmpty()) {
                 return ImportResultDTO.builder()
-                        .success(false)
-                        .totalCount(rows.size())
-                        .successCount(0)
-                        .failureCount(errors.size())
-                        .errors(errors)
-                        .message("没有可导入的有效数据")
-                        .build();
+                        .success(false).totalCount(rows.size()).successCount(0)
+                        .failureCount(errors.size()).errors(errors)
+                        .message("没有可导入的有效数据").build();
             }
 
-            // 4. 数据库去重校验（教师工号）
-            List<String> teacherNos = validRows.stream()
-                    .map(r -> r.getData().getTeacherNo())
-                    .distinct()
-                    .toList();
-
-            Set<String> dbExistTeacherNos = new HashSet<>(
-                    teacherMapper.selectList(new LambdaQueryWrapper<Teacher>().in(Teacher::getTeacherNo, teacherNos))
-                            .stream()
-                            .map(Teacher::getTeacherNo)
-                            .toList()
-            );
-
-            // 5. 校验用户名是否已存在
-            Set<String> dbExistUsernames = new HashSet<>(
-                    userMapper.selectList(new LambdaQueryWrapper<User>().in(User::getUsername, teacherNos))
-                            .stream()
-                            .map(User::getUsername)
-                            .toList()
-            );
-
-            // 6. 构建待插入数据
-            List<TeacherData> toInsert = new ArrayList<>();
-            for (ExcelImportUtil.RowData<TeacherExcelDTO> row : validRows) {
-                int rowNo = row.getRowNo();
-                TeacherExcelDTO data = row.getData();
-
-                if (dbExistTeacherNos.contains(data.getTeacherNo())) {
-                    errors.add(new ImportErrorDTO(rowNo, "教师工号已存在: " + data.getTeacherNo(), null));
-                    continue;
-                }
-
-                if (dbExistUsernames.contains(data.getTeacherNo())) {
-                    errors.add(new ImportErrorDTO(rowNo, "用户名已存在: " + data.getTeacherNo(), null));
-                    continue;
-                }
-
-                TeacherData teacherData = new TeacherData();
-                teacherData.data = data;
-                teacherData.password = PasswordGeneratorUtil.generatePassword();
-                toInsert.add(teacherData);
-            }
-
-            // 7. 批量插入（需要先创建用户，再创建教师）
-            int successCount = 0;
-            if (!toInsert.isEmpty()) {
-                List<List<TeacherData>> partitions = ExcelImportUtil.partition(toInsert, batchSize);
-                for (List<TeacherData> batch : partitions) {
-                    for (TeacherData td : batch) {
-                        try {
-                            // 创建用户账号
-                            User user = new User();
-                            user.setUsername(td.data.getTeacherNo());
-                            user.setPassword(passwordEncoder.encode(td.password));
-                            user.setEmail(null);
-                            user.setRole(3);  // 教师角色
-                            user.setStatus(UserStatus.ACTIVE.getValue());
-                            user.setCreatedTime(LocalDateTime.now());
-                            user.setUpdatedTime(LocalDateTime.now());
-                            userMapper.insert(user);
-
-                            // 创建教师信息
-                            Teacher teacher = new Teacher();
-                            teacher.setUserId(user.getId());
-                            teacher.setTeacherNo(td.data.getTeacherNo());
-                            teacher.setRealName(td.data.getRealName());
-                            teacher.setDepartment(td.data.getDepartment());
-                            teacher.setPhone(td.data.getPhone());
-                            teacher.setStatus(1);
-                            teacher.setCreatedTime(LocalDateTime.now());
-                            teacher.setUpdatedTime(LocalDateTime.now());
-                            teacherMapper.insert(teacher);
-
-                            successCount++;
-                            log.info("导入教师成功: teacherNo={}, realName={}, password={}",
-                                    td.data.getTeacherNo(), td.data.getRealName(), td.password);
-                        } catch (Exception e) {
-                            log.error("导入教师失败: teacherNo={}", td.data.getTeacherNo(), e);
-                        }
-                    }
-                }
-            }
+            // 4. 检查数据库冲突（工号、用户名）
+            List<TeacherData> toInsert = checkTeacherConflictsAndBuild(validRows, errors);
 
+            // 5. 批量插入：先插入User表，再插入Teacher表
+            int successCount = insertTeachersWithUsers(toInsert);
             log.info("教师批量导入完成: 总数={}, 成功={}, 失败={}", rows.size(), successCount, errors.size());
-            return ImportResultDTO.success(rows.size(), successCount, errors);
 
+            return ImportResultDTO.success(rows.size(), successCount, errors);
         } catch (IOException e) {
             log.error("读取Excel文件失败", e);
             return ImportResultDTO.fileError("读取文件失败: " + e.getMessage());
@@ -433,10 +307,200 @@ public class TeacherServiceImpl implements TeacherService {
     }
 
     /**
-     * 教师数据临时类（包含密码）
+     * 读取Excel文件，使用TeacherReadListener解析数据
+     */
+    private void readTeacherExcel(MultipartFile file, List<ExcelImportUtil.RowData<TeacherExcelDTO>> rows,
+                                   List<ImportErrorDTO> errors) throws IOException {
+        TeacherReadListener listener = new TeacherReadListener();
+        ExcelImportUtil.readExcel(file, TeacherExcelDTO.class, listener);
+        rows.addAll(listener.getRows());
+        errors.addAll(listener.getErrors());
+    }
+
+    /**
+     * 校验教师数据的必填字段，并检查Excel内部重复性
+     * 检查项：教师工号、真实姓名不能为空；工号不能重复
+     */
+    private List<ExcelImportUtil.RowData<TeacherExcelDTO>> validateTeacherData(
+            List<ExcelImportUtil.RowData<TeacherExcelDTO>> rows, List<ImportErrorDTO> errors) {
+        Set<String> teacherNosInExcel = new HashSet<>();
+        List<ExcelImportUtil.RowData<TeacherExcelDTO>> validRows = new ArrayList<>();
+
+        for (ExcelImportUtil.RowData<TeacherExcelDTO> row : rows) {
+            int rowNo = row.getRowNo();
+            TeacherExcelDTO data = row.getData();
+
+            // 检查必填字段
+            if (StringUtil.isBlank(data.getTeacherNo())) {
+                errors.add(new ImportErrorDTO(rowNo, "教师工号不能为空", null));
+                continue;
+            }
+            if (StringUtil.isBlank(data.getRealName())) {
+                errors.add(new ImportErrorDTO(rowNo, "教师姓名不能为空", null));
+                continue;
+            }
+            // 检查Excel内工号重复
+            if (!teacherNosInExcel.add(data.getTeacherNo())) {
+                errors.add(new ImportErrorDTO(rowNo, "Excel内教师工号重复: " + data.getTeacherNo(), null));
+                continue;
+            }
+            validRows.add(row);
+        }
+        return validRows;
+    }
+
+    /**
+     * 检查数据库冲突并构建待插入数据
+     * 检查项：工号在Teacher表中是否存在、用户名在User表中是否存在
+     */
+    private List<TeacherData> checkTeacherConflictsAndBuild(
+            List<ExcelImportUtil.RowData<TeacherExcelDTO>> validRows, List<ImportErrorDTO> errors) {
+        List<TeacherData> toInsert = new ArrayList<>();
+        List<String> teacherNos = validRows.stream()
+                .map(r -> r.getData().getTeacherNo()).distinct().toList();
+
+        // 批量查询数据库进行冲突检查
+        Set<String> dbExistTeacherNos = new HashSet<>(
+                teacherMapper.selectList(new LambdaQueryWrapper<Teacher>().in(Teacher::getTeacherNo, teacherNos))
+                        .stream().map(Teacher::getTeacherNo).toList());
+        Set<String> dbExistUsernames = new HashSet<>(
+                userMapper.selectList(new LambdaQueryWrapper<User>().in(User::getUsername, teacherNos))
+                        .stream().map(User::getUsername).toList());
+
+        // 逐条检查冲突并构建待插入数据
+        for (ExcelImportUtil.RowData<TeacherExcelDTO> row : validRows) {
+            TeacherExcelDTO data = row.getData();
+            int rowNo = row.getRowNo();
+
+            // 检查工号和用户名冲突
+            if (dbExistTeacherNos.contains(data.getTeacherNo())) {
+                errors.add(new ImportErrorDTO(rowNo, "教师工号已存在: " + data.getTeacherNo(), null));
+                continue;
+            }
+            if (dbExistUsernames.contains(data.getTeacherNo())) {
+                errors.add(new ImportErrorDTO(rowNo, "用户名已存在: " + data.getTeacherNo(), null));
+                continue;
+            }
+
+            // 构建待插入数据
+            TeacherData teacherData = new TeacherData();
+            teacherData.data = data;
+            toInsert.add(teacherData);
+        }
+        return toInsert;
+    }
+
+    /**
+     * 批量插入教师和对应的用户账号
+     * 流程：构建User→批量插入→查询userId映射→构建Teacher→批量插入
+     * 注意：User和Teacher表通过userId关联
+     */
+    private int insertTeachersWithUsers(List<TeacherData> toInsert) {
+        if (toInsert.isEmpty()) return 0;
+
+        // 1. 构建并批量插入User对象（密码默认为工号）
+        List<User> usersToInsert = buildUsersForTeachers(toInsert);
+        batchInsertUsers(usersToInsert);
+
+        // 2. 查询插入后的User，获取userId映射
+        List<String> insertedTeacherNos = toInsert.stream()
+                .map(td -> td.data.getTeacherNo()).toList();
+        Map<String, String> userIdMap = queryUserIdsByTeacherNos(insertedTeacherNos);
+
+        // 3. 构建并批量插入Teacher对象
+        List<Teacher> teachersToInsert = buildTeachersWithUserIds(toInsert, userIdMap);
+        batchInsertTeachers(teachersToInsert);
+
+        return teachersToInsert.size();
+    }
+
+    /**
+     * 为教师批量构建User对象
+     * 用户名=工号，密码=工号，角色=教师
+     */
+    private List<User> buildUsersForTeachers(List<TeacherData> toInsert) {
+        return toInsert.stream().map(td -> {
+            User user = new User();
+            user.setUsername(td.data.getTeacherNo());
+            user.setPassword(passwordEncoder.encode(td.data.getTeacherNo()));
+            user.setEmail(null);
+            user.setRole(3);  // 教师角色
+            user.setStatus(UserStatus.ACTIVE.getValue());
+            user.setCreatedTime(LocalDateTime.now());
+            user.setUpdatedTime(LocalDateTime.now());
+            return user;
+        }).toList();
+    }
+
+    /**
+     * 批量插入User对象
+     */
+    private void batchInsertUsers(List<User> users) {
+        List<List<User>> partitions = ExcelImportUtil.partition(users, batchSize);
+        for (List<User> batch : partitions) {
+            userMapper.insert(batch);
+        }
+    }
+
+    /**
+     * 按工号查询User的ID映射（工号 → userId）
+     */
+    private Map<String, String> queryUserIdsByTeacherNos(List<String> teacherNos) {
+        return userMapper.selectList(new LambdaQueryWrapper<User>().in(User::getUsername, teacherNos))
+                .stream().collect(Collectors.toMap(User::getUsername, User::getId));
+    }
+
+    /**
+     * 构建Teacher对象，使用userId与User表关联
+     */
+    private List<Teacher> buildTeachersWithUserIds(List<TeacherData> toInsert, Map<String, String> userIdMap) {
+        return toInsert.stream()
+                .map(td -> {
+                    String userId = userIdMap.get(td.data.getTeacherNo());
+                    if (userId == null) return null;
+
+                    Teacher teacher = new Teacher();
+                    teacher.setUserId(userId);
+                    teacher.setTeacherNo(td.data.getTeacherNo());
+                    teacher.setRealName(td.data.getRealName());
+                    teacher.setDepartment(td.data.getDepartment());
+                    teacher.setPhone(td.data.getPhone());
+                    teacher.setStatus(EntityStatus.ACTIVE.getValue());
+                    teacher.setCreatedTime(LocalDateTime.now());
+                    teacher.setUpdatedTime(LocalDateTime.now());
+                    return teacher;
+                })
+                .filter(Objects::nonNull)
+                .toList();
+    }
+
+    /**
+     * 批量插入Teacher对象
+     */
+    private void batchInsertTeachers(List<Teacher> teachers) {
+        List<List<Teacher>> partitions = ExcelImportUtil.partition(teachers, batchSize);
+        for (List<Teacher> batch : partitions) {
+            teacherMapper.insert(batch);
+        }
+    }
+
+
+    /**
+     * 获取教师详情
+     */
+    @Override
+    public TeacherRespDTO getTeacherDetail(String teacherId) {
+        Teacher teacher = teacherMapper.selectOne(new LambdaQueryWrapper<Teacher>()
+                .eq(Teacher::getId, teacherId));
+        TeacherRespDTO teacherRespDTO = new TeacherRespDTO();
+        BeanCopyUtil.copyProperties(teacher, teacherRespDTO);
+        return teacherRespDTO;
+    }
+
+    /**
+     * 教师数据临时类
      */
     private static class TeacherData {
         TeacherExcelDTO data;
-        String password;
     }
 }