我的第一个项目(十五) :完成数据保存功能(后端,改update)_当前关注

(资料图片)

好家伙,

代码已开源(Gitee)

PH-planewar: 个人开发的全栈小游戏 前端:vue2 + element-ui 后端: Springboot + mybatis-plus 数据库: mysql 目前实现功能: 1.注册登陆 2.游戏数据保存 3.游戏运行 (gitee.com)

后端这边update方法改了一下

controller类:

package com.wulaoda.loginhouduan.controller;import com.wulaoda.loginhouduan.entity.SysUserEntity;import com.wulaoda.loginhouduan.req.SysUserLoginReq;import com.wulaoda.loginhouduan.req.SysUserSaveReq;import com.wulaoda.loginhouduan.req.SysUserUpdateReq;import com.wulaoda.loginhouduan.resp.CommonResp;import com.wulaoda.loginhouduan.resp.SysUserLoginResp;import com.wulaoda.loginhouduan.service.SysUserService;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.util.DigestUtils;import org.springframework.web.bind.annotation.*;@RestController//绑定数据库表名@RequestMapping("/sys-user")public class SysUserController {    @Autowired    private SysUserService sysUserService;    @PostMapping("register")//    zxcv1234    //@RequestBody主要用来接收前端传递给后端的json字符串中的数据的(请求体中的数据的)；    public CommonResp register(@RequestBody  SysUserSaveReq req){        //对密码进行md5加密        req.setPassword(DigestUtils.md5DigestAsHex(req.getPassword().getBytes()));        //resp为返回数据        CommonResp resp = new CommonResp<>();        //真正的注册        SysUserEntity saveResp = sysUserService.register(req);        if(saveResp ==null){            resp.setSuccess(false);        }        return resp;    }    @PostMapping("login")    public CommonResp login(@RequestBody SysUserLoginReq req){//        zxcv1234        req.setPassword(DigestUtils.md5DigestAsHex(req.getPassword().getBytes()));        CommonResp resp = new CommonResp<>();        SysUserLoginResp loginResp = sysUserService.login(req);        if (loginResp == null) {            resp.setSuccess(false);        }        resp.setContent(loginResp);        return resp;    }    @PostMapping("update")    public CommonResp update(@RequestBody SysUserUpdateReq req){        CommonResp resp = new CommonResp<>();        sysUserService.update(req);        return resp;    }    @GetMapping("getallscore")    public CommonResp getallscore(){        CommonResp resp = new CommonResp<>();        sysUserService.getallscore();        return resp;    }}

service类

package com.wulaoda.loginhouduan.service.impl;import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;import com.wulaoda.loginhouduan.entity.SysUserEntity;import com.wulaoda.loginhouduan.mapper.SysUserMapper;import com.wulaoda.loginhouduan.req.SysUserLoginReq;import com.wulaoda.loginhouduan.req.SysUserSaveReq;import com.wulaoda.loginhouduan.req.SysUserUpdateReq;import com.wulaoda.loginhouduan.resp.SysUserLoginResp;import com.wulaoda.loginhouduan.resp.SysUserUpdateResp;import com.wulaoda.loginhouduan.service.SysUserService;import com.wulaoda.loginhouduan.utils.CopyUtil;import com.wulaoda.loginhouduan.utils.SnowFlake;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import org.springframework.util.CollectionUtils;import org.springframework.util.ObjectUtils;import javax.annotation.Resource;import java.util.List;@Service//implements表示接口的实现,必须实现接口中的所有方法//此处继承SysUserService的方法并改写public class SysUserServiceImpl extends ServiceImpl implements SysUserService {    @Resource    @Autowired    private SysUserMapper sysUserMapper;    @Autowired    private SnowFlake snowFlake;//注册    @Override    public SysUserEntity register(SysUserSaveReq req) {        //        SysUserEntity user = CopyUtil.copy(req, SysUserEntity.class);        //ObjectUtils.isEmpty判断对象是否为空        if(ObjectUtils.isEmpty(req.getId())){            //查看用户名是否已注册            SysUserEntity userDb = selectByLoginName(req.getLoginName());            //用户名未被注册            if(ObjectUtils.isEmpty(userDb)){                //用算法给帮它设置一个新id                user.setId(snowFlake.nextId());                //这步是真正的往数据库里插数据了                sysUserMapper.insert(user);                //哈哈,没东西返回了            }else{                //用户名已被注册,返回null                return null;            }        }        //无用返回        return user;    }//登陆    @Override    public SysUserLoginResp login(SysUserLoginReq req) {        SysUserEntity userDb = selectByLoginName(req.getLoginName());        QueryWrapper wrapper = new QueryWrapper<>();        if(ObjectUtils.isEmpty(userDb)){            //用户不存在            return null;        }else {            String s1 = userDb.getPassword();            String s2 = req.getPassword();            //进行字符串校验            if(s1.equals(s2)){                //密码验证成功                int a = userDb.getLife();                SysUserLoginResp userLoginResp = CopyUtil.copy(userDb, SysUserLoginResp.class);                return userLoginResp;            }else {                //密码校验失败                return null;            }        }    }//数据更新    @Override    public SysUserUpdateResp update(SysUserUpdateReq req){//        SysUserEntity userDb = selectByLoginName(req.getLoginName());//        QueryWrapper wrapper = new QueryWrapper<>();//        LambdaUpdateWrapper wrapper1 = new LambdaUpdateWrapper<>();//        wrapper1.set(SysUserEntity::getLife, req.getLife());//        sysUserMapper.update(userDb,wrapper1);          //重写          //网上的例子//        LambdaUpdateWrapper lambdaUpdateWrapper = new LambdaUpdateWrapper<>();//        lambdaUpdateWrapper.eq(User::getName, "rhb").set(User::getAge, 18);//        Integer rows = userMapper.update(null, lambdaUpdateWrapper);        //以下版本只能修改单项数据//          LambdaUpdateWrapper wrapper1 = new LambdaUpdateWrapper<>();//          wrapper1.eq(SysUserEntity::getLoginName, req.getLoginName()).set(SysUserEntity::getLife, req.getLife());//          sysUserMapper.update(null,wrapper1);        LambdaUpdateWrapper wrapper1 = new LambdaUpdateWrapper<>();        wrapper1.eq(SysUserEntity::getLoginName, req.getLoginName()).set(SysUserEntity::getLife, req.getLife());        wrapper1.eq(SysUserEntity::getLoginName, req.getLoginName()).set(SysUserEntity::getScore, req.getScore());        sysUserMapper.update(null,wrapper1);          return null;    }//获取所有分数getallscore//    @Override//    public void getallscore(){//        // 查询多个字段，其它不需要查询的字段则为null////        List