关于java:springboot整合mybatisplus

package com.guigu.liujie.controller;

import com.guigu.liujie.pojo.User;import com.guigu.liujie.service.UserService;import com.guigu.liujie.utils.Result;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.*;import java.util.List;/** * @ClassName UserController * @Description TODO * @Author liujie * @Date 2021/6/15 16:19 * @Version 1.0 **/@RestController@RequestMapping("user")public class UserController {    @Autowired    public UserService userService;    /**     * 用户新增     * @param user     * @return     */    @PostMapping()    public Object userAdd(@RequestBody User user){        boolean isAdd = userService.userAdd(user);        if(!isAdd){            return new Result(isAdd,"新增失败");        }        return new Result([PerfectMoney下载](https://www.gendan5.com/wallet/PerfectMoney.html)isAdd,"新增胜利");    }    /**     * 依据id删除     * @param id     * @return     */    @DeleteMapping(value = "{id}")    public Object userDel(@PathVariable Integer id){        boolean flag = userService.userDel(id);        if(!flag){            return new Result(flag,"删除失败");        }        return new Result(flag,"删除胜利");    }    /**     * 依据以后用户id进行批改     * @param user     * @return     */    @PutMapping()    public Object userUpd(@RequestBody User user){        boolean flag = userService.userUpd(user);        if(!flag){            return new Result(flag,"批改失败");        }        return new Result(flag,"批改胜利");    }    /**     * 查问所有用户信息     * @return     */    @GetMapping()    public Object findAll(){        List<User> userList = userService.findAll();        return new Result("查问所有胜利",userList);    }    /**     * 依据id查看详情     * @param id     * @return     */    @GetMapping(value = "{id}")    public Object findById(@PathVariable Integer id){        User user = userService.findById(id);        if(user!=null){            return new Result("查看详情胜利",user);        }        return new Result("查看详情失败",user);    }}