public String sendData(String URL, String message) throws IOException {
        URL url = new URL(URL);
        URLConnection connection = url.openConnection();
        connection.setDoOutput(true);
        DataOutputStream printout = new DataOutputStream(
                connection.getOutputStream());
        printout.writeBytes(message);
        printout.flush();
        printout.close();
        BufferedReader in = new BufferedReader(new InputStreamReader(
                connection.getInputStream()));
        String returnData = "";
        String temp;
        while ((temp = in.readLine()) != null) {
            returnData += temp + "\n";
        }
        return returnData;
    }