更新圖片和狀態

圖片存在本地,項目重新開啓,圖片會消失,一般大點項目都有文件服務器

 /**
     *  菜品圖片更換上傳
     */
    SimpleDateFormat sdf = new SimpleDateFormat("/yyyy/MM/dd/");
    @PostMapping("/icon")
    public RespBean updateFoodIcon(MultipartFile file, Food food, HttpServletRequest req){
        String format = sdf.format(new Date()); //日期
       String realPath =  req.getServletContext().getRealPath("/img")+format; //圖片存地址
        File folder = new File(realPath);
        if(!folder.exists()){
            folder.mkdirs();
        }

        String oldName = file.getOriginalFilename();
        String newName = UUID.randomUUID().toString()+oldName.substring(oldName.lastIndexOf("."));
        try {
            file.transferTo(new File(folder,newName));
            String icon = req.getScheme()+"://" + req.getServerName() + ":" + req.getServerPort() + "/img" + format + newName;
            food.setIcon(icon);
            if (foodService.updateFoodById(food) == 1){
                return RespBean.ok("更新成功");
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return RespBean.error("更新失敗");
        }

項目中狀態更新

    /**
     *  狀態更新
     * @param food
     * @return
     */
    @PutMapping("/")
    public RespBean updateFoodById(@RequestBody Food food) {
        if (foodService.updateFoodById(food) == 1) {
                return RespBean.ok("更新成功");
            }
            return RespBean.error("更新失敗");
    }

   public Integer updateFoodById(Food food) {
        return foodMapper.updateByPrimaryKeySelective(food);
    }

  int updateByPrimaryKeySelective(Food record);

前端一段判斷代碼

   change(data) { //菜品狀態更新
                data.state = data.state == 0 ? 1 : 0;
                this.putRequest("/food/mana/", data).then(resp=>{
                    if (resp) {
                        this.initFoods();
                    }