Written [{msg=系统内部错误------3, success=false}] as "application/json" using [org.springframework.http.converter.json.MappingJackson2HttpMessageConverter@52933fa2]
```这是报错的

```下面时更新店铺的代码
@RequestMapping(value="/updateshop",method=RequestMethod.POST)
	@ResponseBody
	private Map<String, Object> updateShop(HttpServletRequest request) {
		Map<String,Object> map=new HashMap<String, Object>();
		if(!KaptchaUtil.determineKaptcha(request)) {
			map.put("success",false);
			map.put("msg","你输入的验证码错误！");
			return map;
		}
		//利用jackson-databind组件完成相应参数转化，图片和店铺信息
		String shopStr = HttpServletRequestUtil.getString(request,"shop");
		ObjectMapper mapper=new ObjectMapper();
		Shop shop=new Shop();
		try {
			shop = mapper.readValue(shopStr, Shop.class);
		} catch (Exception e) {
			map.put("success",false);
			map.put("msg",e.getMessage()+"------1");
			return map;
		}
		CommonsMultipartFile shopImg=null;
		//获取 文件上传内容CommonsMultipartResolver
		CommonsMultipartResolver commonsMultipartResolver=new CommonsMultipartResolver(
				request.getSession().getServletContext());
		if(commonsMultipartResolver.isMultipart(request)) {//判断request里面有没有要上传的文件流
			MultipartHttpServletRequest multipartHttpServletRequest=(MultipartHttpServletRequest)request;
			shopImg=(CommonsMultipartFile)multipartHttpServletRequest.getFile("shopImg");
		}else {
			map.put("success",false);
			map.put("msg","上传文件过程中出现错误！");
			return map;
		}
		
		//修改店铺信息
		if(shop!=null&&shop.getShopId()!=null) {
			ImageHolder thumbnail=new ImageHolder();
			ShopExecution se;
			try {
				if(shopImg==null) {
					se=shopService.updateShop(shop,null);
				}else {
					thumbnail.setImage(shopImg.getInputStream());
					thumbnail.setImageName(shopImg.getOriginalFilename().toString());
					se=shopService.updateShop(shop,thumbnail);
				}
				if(se.getState()==ShopStateEnum.SUCCESS.getState()) {
					map.put("success",true);
				}else {
					map.put("success",false);
					map.put("msg",se.getStateInfo()+"------3");
					return map;
				}
			} catch (IOException e) {
				map.put("success",false);
				map.put("msg","文件错误！");
				return map;
			}
			
		}else {
			map.put("success",false);
			map.put("msg","请输入商铺注册信息！");
			return map;
		}
		return map;
	}