Socket problem: read & write to same socket

Tue, 13 Mar 2012 09:01:44 -0700 (PDT)
I want to establish connection to a server(written by myself in Go language=
), read from socket, and then write into socket.

The connection can be established, and it reads correctly. But after that a=
nd when I want to write to socket, it closes the connection. I used wiresha=
rk to listen to the packets. I saw my program sent a FIN to the server side=
.. So the server receives nothing.

Note that the server side only sends one line into socket.

I later wrote a server in Java and a client in Go. They work fine in both r=
ead and write.

Thanks in advance!


public class DeserializerTester {

     * @param args
     * @throws IOException
    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        Socket s = null;
        BufferedReader in = null;
        BufferedWriter out = null;
        //PrintWriter out = null;

        try {
            s = new Socket("", 9999);
            in = new BufferedReader(new InputStreamReader(s.getInputStream()));
            //out = new PrintWriter(s.getOutputStream(), false);
            out = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
        } catch (UnknownHostException e) {
            System.err.println("Unknown host");
        } catch (IOException e) {
            System.err.println("IO error");

        String msg = "";

        msg = in.readLine();

        out.write("\"hi, socket\"");


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