feat(mapper): 添加院系专业学生公告的修改删除功能

- 在DepartmentMapper接口中添加updateDepartment和deleteDepartment方法
- 在DepartmentMapper.xml中实现院系修改和删除的SQL映射
- 在MajorMapper接口中添加updateMajor和deleteMajor方法
- 在MajorMapper.xml中实现专业修改和删除的SQL映射
- 在NoticeMapper接口中添加updateNotice和deleteNotice方法
- 在NoticeMapper.xml中实现公告修改和删除的SQL映射
- 在StudentMapper接口中添加updateStudent和deleteStudent方法
- 在StudentMapper.xml中实现学生修改和删除的SQL映射
- 移除TestMyBatis测试类中的冗余代码

grademanagement-MyBatisProject/src/com/ssm/mapper/DepartmentMapper.java

@@ -9,4 +9,8 @@ public interface DepartmentMapper {
     List<Department> getDepartmentAll();
     // 添加院系
     void addDepartment(Department department);
+    // 修改院系
+    void updateDepartment(Department department);
+    // 删除院系
+    void deleteDepartment(Integer deptId);
 }

grademanagement-MyBatisProject/src/com/ssm/mapper/DepartmentMapper.xml

@@ -14,4 +14,17 @@
         INSERT INTO department(dept_name, dept_code, dept_phone, dept_address)
         VALUES(#{deptName}, #{deptCode}, #{deptPhone}, #{deptAddress})
     </insert>
+    <!-- 修改院系 -->
+    <update id="updateDepartment" parameterType="com.ssm.entity.Department">
+        UPDATE department
+        SET dept_name = #{deptName},
+            dept_code = #{deptCode},
+            dept_phone = #{deptPhone},
+            dept_address = #{deptAddress}
+        WHERE dept_id = #{deptId}
+    </update>
+    <!-- 删除院系 -->
+    <delete id="deleteDepartment" parameterType="Integer">
+        DELETE FROM department WHERE dept_id = #{deptId}
+    </delete>
 </mapper>

grademanagement-MyBatisProject/src/com/ssm/mapper/MajorMapper.java

@@ -7,4 +7,8 @@ public interface MajorMapper {
     List<Major> getMajorAll();
     // 添加专业
     void addMajor(Major major);
+    // 修改专业
+    void updateMajor(Major major);
+    // 删除专业
+    void deleteMajor(Integer majorId);
 }

grademanagement-MyBatisProject/src/com/ssm/mapper/MajorMapper.xml

@@ -14,4 +14,17 @@
         INSERT INTO major(major_name, major_code, dept_id, study_year)
         VALUES(#{majorName}, #{majorCode}, #{deptId}, #{studyYear})
     </insert>
+    <!-- 修改专业 -->
+    <update id="updateMajor" parameterType="com.ssm.entity.Major">
+        UPDATE major
+        SET major_name = #{majorName},
+            major_code = #{majorCode},
+            dept_id = #{deptId},
+            study_year = #{studyYear}
+        WHERE major_id = #{majorId}
+    </update>
+    <!-- 删除专业 -->
+    <delete id="deleteMajor" parameterType="Integer">
+        DELETE FROM major WHERE major_id = #{majorId}
+    </delete>
 </mapper>

grademanagement-MyBatisProject/src/com/ssm/mapper/NoticeMapper.java

@@ -7,4 +7,8 @@ public interface NoticeMapper {
     List<Notice> getNoticeAll();
     // 添加公告
     void addNotice(Notice notice);
+    // 修改公告
+    void updateNotice(Notice notice);
+    // 删除公告
+    void deleteNotice(Integer noticeId);
 }

grademanagement-MyBatisProject/src/com/ssm/mapper/NoticeMapper.xml

@@ -14,4 +14,18 @@
         INSERT INTO notice(title, content, publish_time, publisher, status)
         VALUES(#{title}, #{content}, #{publishTime}, #{publisher}, #{status})
     </insert>
+    <!-- 修改公告 -->
+    <update id="updateNotice" parameterType="com.ssm.entity.Notice">
+        UPDATE notice
+        SET title = #{title},
+            content = #{content},
+            publish_time = #{publishTime},
+            publisher = #{publisher},
+            status = #{status}
+        WHERE notice_id = #{noticeId}
+    </update>
+    <!-- 删除公告 -->
+    <delete id="deleteNotice" parameterType="Integer">
+        DELETE FROM notice WHERE notice_id = #{noticeId}
+    </delete>
 </mapper>

grademanagement-MyBatisProject/src/com/ssm/mapper/StudentMapper.java

@@ -7,4 +7,8 @@ public interface StudentMapper {
     List<Student> getStudentAll();
     // 添加学生
     void addStudent(Student student);
+    // 修改学生
+    void updateStudent(Student student);
+    // 删除学生
+    void deleteStudent(Integer studentId);
 }

grademanagement-MyBatisProject/src/com/ssm/mapper/StudentMapper.xml

@@ -14,4 +14,19 @@
         INSERT INTO student(student_no, student_name, gender, age, class_id, phone)
         VALUES(#{studentNo}, #{studentName}, #{gender}, #{age}, #{classId}, #{phone})
     </insert>
+    <!-- 修改学生 -->
+    <update id="updateStudent" parameterType="com.ssm.entity.Student">
+        UPDATE student
+        SET student_no = #{studentNo},
+            student_name = #{studentName},
+            gender = #{gender},
+            age = #{age},
+            class_id = #{classId},
+            phone = #{phone}
+        WHERE student_id = #{studentId}
+    </update>
+    <!-- 删除学生 -->
+    <delete id="deleteStudent" parameterType="Integer">
+        DELETE FROM student WHERE student_id = #{studentId}
+    </delete>
 </mapper>

grademanagement-MyBatisProject/src/com/ssm/test/TestMyBatis.java

@@ -1,136 +0,0 @@
-package com.ssm.test;
-
-import com.ssm.entity.*;
-import com.ssm.mapper.*;
-import org.apache.ibatis.io.Resources;
-import org.apache.ibatis.session.SqlSession;
-import org.apache.ibatis.session.SqlSessionFactory;
-import org.apache.ibatis.session.SqlSessionFactoryBuilder;
-
-import java.io.Reader;
-import java.util.Date;
-import java.util.List;
-
-public class TestMyBatis {
-	public static void main(String[] args) throws Exception {
-		// 1. 加载配置文件
-		Reader reader = Resources.getResourceAsReader("config.xml");
-		SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(reader);
-		SqlSession sqlSession = factory.openSession();
-
-		// 2. 查询测试（之前写的）
-		testDepartment(sqlSession);
-		testMajor(sqlSession);
-		testStudent(sqlSession);
-		testNotice(sqlSession);
-
-		// 3. 添加测试（本次任务重点）
-		testAddDepartment(sqlSession);
-		testAddMajor(sqlSession);
-		testAddStudent(sqlSession);
-		testAddNotice(sqlSession);
-
-		sqlSession.close();
-		reader.close();
-	}
-
-	// ========== 查询方法（保留） ==========
-	private static void testDepartment(SqlSession sqlSession) {
-		DepartmentMapper mapper = sqlSession.getMapper(DepartmentMapper.class);
-		Department dept = mapper.getDepartmentById(1);
-		System.out.println("===== 院系模块 - 按ID查询 =====");
-		System.out.println(dept);
-		List<Department> deptList = mapper.getDepartmentAll();
-		System.out.println("\n===== 院系模块 - 查询所有 =====");
-		deptList.forEach(System.out::println);
-	}
-
-	private static void testMajor(SqlSession sqlSession) {
-		MajorMapper mapper = sqlSession.getMapper(MajorMapper.class);
-		Major major = mapper.getMajorById(1);
-		System.out.println("\n===== 专业模块 - 按ID查询 =====");
-		System.out.println(major);
-		List<Major> majorList = mapper.getMajorAll();
-		System.out.println("\n===== 专业模块 - 查询所有 =====");
-		majorList.forEach(System.out::println);
-	}
-
-	private static void testStudent(SqlSession sqlSession) {
-		StudentMapper mapper = sqlSession.getMapper(StudentMapper.class);
-		Student student = mapper.getStudentById(1);
-		System.out.println("\n===== 学生模块 - 按ID查询 =====");
-		System.out.println(student);
-		List<Student> studentList = mapper.getStudentAll();
-		System.out.println("\n===== 学生模块 - 查询所有 =====");
-		studentList.forEach(System.out::println);
-	}
-
-	private static void testNotice(SqlSession sqlSession) {
-		NoticeMapper mapper = sqlSession.getMapper(NoticeMapper.class);
-		Notice notice = mapper.getNoticeById(1);
-		System.out.println("\n===== 公告模块 - 按ID查询 =====");
-		System.out.println(notice);
-		List<Notice> noticeList = mapper.getNoticeAll();
-		System.out.println("\n===== 公告模块 - 查询所有 =====");
-		noticeList.forEach(System.out::println);
-	}
-
-	// ========== 添加方法（本次任务重点） ==========
-	// 1. 添加院系
-	private static void testAddDepartment(SqlSession sqlSession) {
-		DepartmentMapper mapper = sqlSession.getMapper(DepartmentMapper.class);
-		// 新建对象
-		Department dept = new Department();
-		dept.setDeptName("软件工程学院");
-		dept.setDeptCode("SE011");
-		dept.setDeptPhone("024-11112222");
-		dept.setDeptAddress("实训楼E座2楼");
-		// 调用添加方法
-		mapper.addDepartment(dept);
-		// 提交事务（必须写！）
-		sqlSession.commit();
-		System.out.println("\n===== 院系模块 - 添加成功 =====");
-	}
-
-	// 2. 添加专业
-	private static void testAddMajor(SqlSession sqlSession) {
-		MajorMapper mapper = sqlSession.getMapper(MajorMapper.class);
-		Major major = new Major();
-		major.setMajorName("人工智能");
-		major.setMajorCode("AI01");
-		major.setDeptId(1); // 所属院系ID，根据你的数据修改
-		major.setStudyYear(4);
-		mapper.addMajor(major);
-		sqlSession.commit();
-		System.out.println("===== 专业模块 - 添加成功 =====");
-	}
-
-	// 3. 添加学生
-	private static void testAddStudent(SqlSession sqlSession) {
-		StudentMapper mapper = sqlSession.getMapper(StudentMapper.class);
-		Student student = new Student();
-		student.setStudentNo("2023011");
-		student.setStudentName("新同学");
-		student.setGender("男");
-		student.setAge(20);
-		student.setClassId(1); // 所属班级ID，根据你的数据修改
-		student.setPhone("13800138011");
-		mapper.addStudent(student);
-		sqlSession.commit();
-		System.out.println("===== 学生模块 - 添加成功 =====");
-	}
-
-	// 4. 添加公告
-	private static void testAddNotice(SqlSession sqlSession) {
-		NoticeMapper mapper = sqlSession.getMapper(NoticeMapper.class);
-		Notice notice = new Notice();
-		notice.setTitle("新增实训通知");
-		notice.setContent("下周将进行人工智能专业实训，请大家提前准备");
-		notice.setPublishTime(new Date());
-		notice.setPublisher("实训中心");
-		notice.setStatus(1);
-		mapper.addNotice(notice);
-		sqlSession.commit();
-		System.out.println("===== 公告模块 - 添加成功 =====");
-	}
-}