增加系统管理代码框架

src/main/java/com/rj/service/sys/impl/UserServiceImpl.java

@@ -0,0 +1,20 @@
+package com.rj.service.sys.impl;
+
+import com.rj.entity.sys.User;
+import com.rj.mapper.sys.UserMapper;
+import com.rj.service.sys.IUserService;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import org.springframework.stereotype.Service;
+
+/**
+ * <p>
+ * 用户表 服务实现类
+ * </p>
+ *
+ * @author 系统生成
+ * @since 2025-08-07
+ */
+@Service
+public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements IUserService {
+
+}