基于微信小程序的学生购电系统设计与实现-计算机毕业设计源码+LW文档

小程序开发说明

开发语言：Java
框架：ssm
JDK版本：JDK1.8
服务器：tomcat7
数据库：mysql 5.7（一定要5.7版本）
数据库工具：Navicat11
开发软件：eclipse/myeclipse/idea
Maven包：Maven3.3.9
浏览器：谷歌浏览器

小程序框架：uniapp
小程序开发软件：HBuilder X
小程序运行软件：微信开发者

关键逻辑代码：

/**
 * 电量信息
 * 后端接口
 * @author 
 * @email 
 * @date 2022-05-09 12:09:29
 */
@RestController
@RequestMapping("/dianliangxinxi")
public class DianliangxinxiController {
    @Autowired
    private DianliangxinxiService dianliangxinxiService;



    


    /**
     * 后端列表
     */
    @RequestMapping("/page")
    public R page(@RequestParam Map params,DianliangxinxiEntity dianliangxinxi, 
HttpServletRequest request){

String tableName = request.getSession().getAttribute("tableName").toString();
if(tableName.equals("xuesheng")) {
dianliangxinxi.setXuehao((String)request.getSession().getAttribute("username"));
}
        EntityWrapper ew = new EntityWrapper();
PageUtils page = dianliangxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, dianliangxinxi), params), params));
        return R.ok().put("data", page);
    }
    
    /**
     * 前端列表
     */
    @RequestMapping("/list")
    public R list(@RequestParam Map params,DianliangxinxiEntity dianliangxinxi, 
HttpServletRequest request){

String tableName = request.getSession().getAttribute("tableName").toString();
if(tableName.equals("xuesheng")) {
dianliangxinxi.setXuehao((String)request.getSession().getAttribute("username"));
}
        EntityWrapper ew = new EntityWrapper();
PageUtils page = dianliangxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, dianliangxinxi), params), params));
        return R.ok().put("data", page);
    }

/**
     * 列表
     */
    @RequestMapping("/lists")
    public R list( DianliangxinxiEntity dianliangxinxi){
        EntityWrapper ew = new EntityWrapper();
      ew.allEq(MPUtil.allEQMapPre( dianliangxinxi, "dianliangxinxi")); 
        return R.ok().put("data", dianliangxinxiService.selectListView(ew));
    }

/**
     * 查询
     */
    @RequestMapping("/query")
    public R query(DianliangxinxiEntity dianliangxinxi){
        EntityWrapper< DianliangxinxiEntity> ew = new EntityWrapper< DianliangxinxiEntity>();
  ew.allEq(MPUtil.allEQMapPre( dianliangxinxi, "dianliangxinxi")); 
DianliangxinxiView dianliangxinxiView =  dianliangxinxiService.selectView(ew);
return R.ok("查询电量信息成功").put("data", dianliangxinxiView);
    }

    /**
     * 后端详情
     */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") Long id){
        DianliangxinxiEntity dianliangxinxi = dianliangxinxiService.selectById(id);
        return R.ok().put("data", dianliangxinxi);
    }

    /**
     * 前端详情
     */
    @RequestMapping("/detail/{id}")
    public R detail(@PathVariable("id") Long id){
        DianliangxinxiEntity dianliangxinxi = dianliangxinxiService.selectById(id);
        return R.ok().put("data", dianliangxinxi);
    }
    



    /**
     * 后端保存
     */
    @RequestMapping("/save")
    public R save(@RequestBody DianliangxinxiEntity dianliangxinxi, HttpServletRequest request){
    dianliangxinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
    //ValidatorUtils.validateEntity(dianliangxinxi);

        dianliangxinxiService.insert(dianliangxinxi);
        return R.ok();
    }
    
    /**
     * 前端保存
     */
    @RequestMapping("/add")
    public R add(@RequestBody DianliangxinxiEntity dianliangxinxi, HttpServletRequest request){
    dianliangxinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
    //ValidatorUtils.validateEntity(dianliangxinxi);
    dianliangxinxi.setUserid((Long)request.getSession().getAttribute("userId"));

        dianliangxinxiService.insert(dianliangxinxi);
        return R.ok();
    }

    /**
     * 修改
     */
    @RequestMapping("/update")
    @Transactional
    public R update(@RequestBody DianliangxinxiEntity dianliangxinxi, HttpServletRequest request){
        //ValidatorUtils.validateEntity(dianliangxinxi);
        dianliangxinxiService.updateById(dianliangxinxi);//全部更新
        return R.ok();
    }
    

    /**
     * 删除
     */
    @RequestMapping("/delete")
    public R delete(@RequestBody Long[] ids){
        dianliangxinxiService.deleteBatchIds(Arrays.asList(ids));
        return R.ok();
    }