@RequestMapping(value = "/upload_img",method = {RequestMethod.GET, RequestMethod.POST},produces = "application/json; charset=utf-8")
    @ResponseBody
    
    public String upload_img(MultipartFile file,HttpServletRequest request) throws Exception{
        
        String path="/upload/news";
        
        //創(chuàng)建文件 
        File dir=new File(path);
        if(!dir.exists()){
            dir.mkdirs();
        }
        
        String id = SysUtil.getUUID();
        String fileName=file.getOriginalFilename();
      
    
        String img=id+fileName.substring(fileName.lastIndexOf("."));//zhao.jpg
        FileOutputStream imgOut=new FileOutputStream(new File(dir,img));//根據(jù) dir 抽象路徑名和 img 路徑名字符串創(chuàng)建一個新 File 實例。
        
        imgOut.write(file.getBytes());//返回一個字節(jié)數(shù)組文件的內(nèi)容
        imgOut.close();
        Map<String, String> map=new HashMap<String, String>();
        map.put("path",img);
        return JSON.toJSONString(map);
    }