代码优化

src/main/java/xyz/playedu/api/service/UserDepartmentService.java

@@ -0,0 +1,14 @@
+package xyz.playedu.api.service;
+
+import xyz.playedu.api.domain.UserDepartment;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+/**
+* @author tengteng
+* @description 针对表【user_department】的数据库操作Service
+* @createDate 2023-02-23 15:08:38
+*/
+public interface UserDepartmentService extends IService<UserDepartment> {
+
+    void removeByUserId(Integer userId);
+}

src/main/java/xyz/playedu/api/service/impl/UserDepartmentServiceImpl.java

@@ -0,0 +1,25 @@
+package xyz.playedu.api.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import xyz.playedu.api.domain.UserDepartment;
+import xyz.playedu.api.service.UserDepartmentService;
+import xyz.playedu.api.mapper.UserDepartmentMapper;
+import org.springframework.stereotype.Service;
+
+/**
+ * @author tengteng
+ * @description 针对表【user_department】的数据库操作Service实现
+ * @createDate 2023-02-23 15:08:38
+ */
+@Service
+public class UserDepartmentServiceImpl extends ServiceImpl<UserDepartmentMapper, UserDepartment>
+        implements UserDepartmentService {
+    @Override
+    public void removeByUserId(Integer userId) {
+        remove(query().getWrapper().eq("user_id", userId));
+    }
+}
+
+
+
+