基于springboot的校园跑腿系统

@Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession();
        if(session.getAttribute("userInfo") != null){
            return true;
        }
        // 不符合条件的给出提示信息，并转发到主页面
        request.setAttribute("msg", "您还没有登录，请先登录！");
        request.getRequestDispatcher("/logout").forward(request, response);
        //返回true通过，返回false拦截
        return false;
    }

/**
     * 文件上传
     * @param dropFile
     * @param request
     * @return
     */
    @ResponseBody
    @RequestMapping(value = "/avatar", method = RequestMethod.POST)
    public Map<String, Object> acticleAvatar(MultipartFile dropFile, HttpServletRequest request) throws IOException {
        Map<String, Object> result = new HashMap<>();
        //获取文件后缀
        String fileName = dropFile.getOriginalFilename();
        String fileSuffix = fileName.substring(fileName.lastIndexOf('.'));
        //文件存放路径
        String fileDirPath = new String(uploadDir);
        File fileDir = new File(fileDirPath);
        //判断文件是否存在
        if (!fileDir.exists()){
            fileDir.mkdirs();
        }
        File file = new File(fileDir.getAbsolutePath()+ File.separator+ UUID.randomUUID() + fileSuffix);
        try {
            dropFile.transferTo(file);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //传到前端
        result.put("fileName", "http://localhost:"+port+"/upload/"+file.getName());
        return result;
    }

//首页
    @GetMapping("/")
    public String userIframe(Model model){
        Map mp = new HashMap<>();
        mp.put("limit","1");
        mp.put("status","01");
        List<CustomOrder> customOrderList = customOrderService.queryFilter(mp);
        model.addAttribute("customOrderList",customOrderList);
        List<Goods> goods = goodsService.queryFilter(mp);
        model.addAttribute("goods",goods);
        return "show";
    }
    //自定义订单
    @GetMapping("/corder")
    public String corder(Model model, String searchName, Integer pageNum, Integer pageSize){
        Map mp = new HashMap<>();
        mp.put("name",searchName);
        mp.put("status","01");
        if(pageNum==null){
            pageNum =1;
        }
        if(pageSize==null){
            pageSize =10;
        }
        PageHelper.startPage(pageNum,pageSize);
        List<CustomOrder> customOrders = customOrderService.queryFilter(mp);
        PageInfo<CustomOrder> customOrderList = new PageInfo<>(customOrders);
        model.addAttribute("customOrderList",customOrderList);
        return "CustomOrder";
    }
    //商品订单
    @GetMapping("/sorder")
    public String sorder(Model model, String searchName, Integer pageNum, Integer pageSize){
        Map mp = new HashMap<>();
        mp.put("no",searchName);
        mp.put("status","01");
        if(pageNum==null){
            pageNum =1;
        }
        if(pageSize==null){
            pageSize =10;
        }
        PageHelper.startPage(pageNum,pageSize);
        List<Orders> orderss = ordersService.queryFilter(mp);
        PageInfo<Orders> ordersList = new PageInfo<>(orderss);
        model.addAttribute("ordersList",ordersList);
        return "goodsOrder";
    }
    //商品
    @GetMapping("/good")
    public String good(Model model, String storeName, String name, Integer pageNum, Integer pageSize){
        Map mp = new HashMap<>();
        mp.put("storeName",storeName);
        mp.put("name",name);
        mp.put("status","01");
        if(pageNum==null){
            pageNum =1;
        }
        if(pageSize==null){
            pageSize =8;
        }
        PageHelper.startPage(pageNum,pageSize);
        List<Goods> goodsList = goodsService.queryFilter(mp);
        PageInfo<Goods> goods = new PageInfo<>(goodsList);
        model.addAttribute("goods",goods);
        return "good";
    }
    //商品详情
    @GetMapping("/goodDetail")
    public String goodDetail(String id, Model model){
        Goods good = goodsService.selectById(id);
        model.addAttribute("id",id);
        model.addAttribute("good",good);
        return "goodDetail";
    }

/**列表数据*/
    @GetMapping("/list")
    @ResponseBody
    public PageResultVo findGoods(Goods goods, Integer limit, Integer page, HttpSession session){
        String type = (String)session.getAttribute("type");
        if(type.equals("03")){
            User user = (User)session.getAttribute("userInfo");
            goods.setUid(String.valueOf(user.getId()));
        }
        PageHelper.startPage(page,limit);
        List<Goods> goodsList = goodsService.selectByCondition(goods);
        PageInfo<Goods> pages = new PageInfo<>(goodsList);
        return JsonData.table(goodsList,pages.getTotal());
    }
    /**编辑详情*/
    @GetMapping("/edit")
    @ResponseBody
    public Goods edit(Model model, String id){
        return goodsService.selectById(id);
    }
    /**编辑*/
    @PostMapping("/edit")
    @ResponseBody
    public JsonData edit(Goods goods){
        int a = goodsService.updateById(goods);
        if (a > 0) {
          return JsonData.success(null,"编辑成功！");
        } else {
          return JsonData.fail("编辑失败");
        }
    }
    /**删除*/
    @PostMapping("/del")
    @ResponseBody
    public JsonData del(String id){
        try{
          goodsService.deleteById(Integer.parseInt(id));
        }catch(Exception ex){
          JsonData.fail("出现错误");
        }
        return JsonData.success(null,"删除成功");
    }