Spring MVC接收提交文件图片的两种方式

FromData接收文件

　　

    @ResponseBody
    @RequestMapping(value="commentPicture")
    public AjaxJson commentPicture(@ModelAttribute Picture picture, MultipartHttpServletRequest multiRequest,
            HttpServletRequest request, HttpServletResponse response) {
        AjaxJson j = new AjaxJson();
        try {
        Comment comment = CommentService.queryById(picture.getCommentId());
            //使用MultipartHttpServletRequest根据前台参数接收文件
            MultipartFile file = multiRequest.getFile("imgFile");
            if (file == null) {
                j.setSuccess(false);
                j.setMsg("未获取到图片");
                return j;
            }
        //通过构造器传入文件上传的参数，开启一个子线程，并在子线程中定义一个属性，赋值为文件存放的地址
            UploadImgUtil uploadImgUtil = new UploadImgUtil(file, filePath, "comment");
//            String imgUrl = UploadImgUtil.uploadImg(file, filePath, "tymall/comment");
            //开启线程
            uploadImgUtil.run();
            //获取文件图片存放地址
            String imgUrl = uploadImgUtil.getImgUrl();
            //评论图片
            picture.setCreateTime(new Date());
            picture.setImgurl(imgUrl);
            picture.setProductId(comment.getProductId());
            picture.setRemark("");
//            tymallCommentPictureService.doAdd(picture);
            j.setSuccess(true);
            j.setMsg("评论成功");    
        } catch (Exception e) {
            e.printStackTrace();
            j.setSuccess(false);
            j.setMsg("评论失败");
        }
        return j;
    }