manage/product/upload.do方法中MultipartFile file中的file 报空指针

来源：8-9 商品管理模块所有功能自测

夏目喵

2017-09-13

@RequestMapping("upload.do")
    @ResponseBody
    public ServerResponse  upload(HttpSession session, HttpServletRequest request, MultipartFile file){
        User user = (User) session.getAttribute(Const.CURRENT_USER);
        if (user == null ){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.NEED_LOGIN.getCode(),"用户未登录");
        }
        if (iUserService.checkAdminRole(user).isSuccess()){
            //业务逻辑
            String path = request.getSession().getServletContext().getRealPath("upload");
            String targetFileName = iFileService.upload(file,path);
            String url = PropertiesUtil.getProperty("ftp.server.http.prefix")+targetFileName;

            Map fileMap = Maps.newHashMap();
            fileMap.put("uri",targetFileName);
            fileMap.put("url",url);
            return ServerResponse.createBySuccess(fileMap);
        }else{
            return ServerResponse.createByErrorMessage("无权限操作");
        }
    }

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