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;

}