Telnet 测试正常，但我的 java socket 客户端不工作

Question

My partner system services socket server. They don't share the client module, only test sample data.
First, I tested using telnet program and it's successful. this image link is the test using telnet program .
But my Java socket client can't receive message from socket server.
this image link is result of my socket program.
Would you help me? Thanks.

    public static void main(String[] args) {
    System.out.println("file.encoding: " + System.getProperty("file.encoding"));
    try {
        Socket socket;

        final String HOST = "xx.xx.xx.xxx"; // partner test server
        final int PORT = 8994;

        try {
            socket = new Socket(HOST, PORT);
        } catch (IOException ioe) {
            System.out.println(">>>");
            System.out.println(ioe.getMessage());
            System.out.println(">>>");
            throw ioe;
        }
        System.out.println("sending data:");
        OutputStream os = socket.getOutputStream();
        byte[] b = "xxxx52017082410332310000000020321                                    ONL00000                                                                                                              080081COP0045             3xxxxxxxxxxxxxxx/jOsBUe5I11C2mtP0j5tPSww==20170824103323                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ".getBytes();
        for (int i = 0; i < b.length; i++) {
            os.write(b[i]);
        }
        os.flush();
        socket.shutdownOutput();
        System.out.println(new String(b) + "[END]");
        System.out.println("receiving data");
        BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        String inputLine;

        while ((inputLine = in.readLine()) != null) {
            System.out.println(inputLine);

        }
        socket.close();
    } catch (IOException ioe) {
        ioe.printStackTrace();
    }
}

Answer 1

I found the solution.

The sever socket program sent byte data, not string line. Please find below my source code.

Thanks everyone.

        socket = new Socket(ip, port);
        System.out.println("SEND DATA[" +msg.length() + "] [" + msg + "]");
        oout = new BufferedOutputStream(socket.getOutputStream());
        iin = new BufferedInputStream(socket.getInputStream());
        oout.write(msg.getBytes());
        oout.flush();

        byte[] buffer = new byte[1156];
        System.out.println("RECV DATA");
        iin.read(buffer);

        System.out.println("RECV DATA [" + new String(buffer) +"]");