byte[] bytes = new byte[1024 * 1024];

        InputStream is;

        try {

            is = request.getInputStream();

            int nRead = 1;

            int nTotalRead = 0;

            while (nRead > 0) {

                nRead = is.read(bytes, nTotalRead, bytes.length - nTotalRead);

                if (nRead > 0)

                    nTotalRead = nTotalRead + nRead;

            }

            String str = new String(bytes, 0, nTotalRead, "utf-8");

            System.out.println("Str:" + str);

            res = str;

            is.close();

            is = null;

        } catch (IOException e) {

            e.printStackTrace();

        }