角色删除完成

src/main/java/com/example/demo/controller/RoleController.java

@@ -39,6 +39,12 @@ public class RoleController {
 
         return roleService.addRole(roleVo);
     }
+    //删除角色
+    @PostMapping("/delete")
+    public Result deleteRole(@RequestBody RoleVo roleVo) {
+
+        return roleService.deleteRole(roleVo);
+    }
 
     //查找全部角色
     @PostMapping("/selectAll")

src/main/java/com/example/demo/mapper/RoleMapper.java

@@ -36,4 +36,9 @@ public interface RoleMapper {
 
     //分页查找角色
     List<RoleVo> selectBy(RoleVo roleVo);
+
+    //删除角色
+    void deleteRole(RoleVo roleVo);
+
+    void deleteRoleMenu(RoleVo roleVo);
 }

src/main/java/com/example/demo/service/RoleService.java

@@ -30,4 +30,6 @@ public interface RoleService {
     //分页查找角色
     PageInfo<RoleVo> selectBy(Integer pageNum, Integer pageSize, RoleVo roleVo);
 
+    //删除角色
+    Result deleteRole(RoleVo roleVo);
 }

src/main/java/com/example/demo/serviceImpl/RoleServiceImpl.java

@@ -67,6 +67,23 @@ public class RoleServiceImpl implements RoleService {
         return Result.success("创建成功");
     }
 
+    //删除角色
+    @Override
+    @Transactional
+    public Result deleteRole(RoleVo roleVo) {
+        if (roleVo.getId() == null) {
+            return Result.error("角色id为空");
+        }
+        try {
+            roleMapper.deleteRoleMenu(roleVo);
+            roleMapper.deleteRole(roleVo);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return Result.error("删除失败");
+        }
+        return Result.success("删除成功");
+    }
+
     //查找全部角色
     @Override
     public List<RoleVo> selectAllRole() {

src/main/resources/mapper/RoleMapper.xml

@@ -36,6 +36,14 @@
             (#{roleName}, #{priority}, #{fatherId})
     </insert>
 
+    <!-- 删除 role_menu 表中对应角色的数据 -->
+    <delete id="deleteRoleMenu" parameterType="Integer">
+        DELETE FROM role_menu WHERE role_id = #{id};
+    </delete>
+    <!-- 删除 role 表中对应的数据 -->
+    <delete id="deleteRole" parameterType="Integer">
+        DELETE FROM role WHERE id = #{id};
+    </delete>
 
       <!-- 查询筛选后角色记录 -->
     <select id="selectBy" resultType="com.example.demo.domain.vo.RoleVo">