图片地址中转

// 图片文件中转接口 @RequestMapping(value = "/images/{guid}", method = { RequestMethod.GET }) public void getIcon(@PathVariable("guid") String guid, HttpServletRequest request, HttpServletResponse response) throws IOException { URL url = new URL(ImgAddressUtils.URL_imgAddress + guid + "?isView=false"); HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); urlConnection.setRequestMethod("GET"); urlConnection.connect(); System.out.println("Connection Response From Test Servlet"); InputStream inputStream = urlConnection.getInputStream(); // 响应 response.setContentType("image/png"); OutputStream stream = response.getOutputStream(); stream.write(input2byte(inputStream)); stream.flush(); stream.close(); } public static final byte[] input2byte(InputStream inStream) throws IOException { ByteArrayOutputStream swapStream = new ByteArrayOutputStream(); byte[] buff = new byte[10240]; int rc = 0; while ((rc = inStream.read(buff, 0, 10240)) > 0) { swapStream.write(buff, 0, rc); } byte[] in2b = swapStream.toByteArray(); return in2b; }