显示原图片

 /**
     * 显示原图片
     * @param name 加密图片resourceUrl
     * @param response
     * @throws Exception
     */
   @RequestMapping(method=RequestMethod.GET , value ="/image/original/{name}")
    public void preview(@PathVariable String name,HttpServletResponse response) throws Exception {
    	
		String imagePath = Base64Util.decodeBase64(name);
		File file = new File(imageServerDirectory + imagePath);

		response.setContentType("image/jpeg;charset=UTF-8");
		OutputStream output = response.getOutputStream();
		 
		InputStream  in = IOUtils.toBufferedInputStream(new FileInputStream(file));
		byte[] buffer = new byte[1024];
		int length = 0;
		while ((length = in.read(buffer)) != -1) {
			output.write(buffer, 0, length);
		}
		in.close();
   }