import java.io.*;
import java.net.Socket;
import java.net.SocketException;

public class TestClient {
    public static void main(String args[]) {
        try {        
            Socket s1 = new Socket("localhost",8884);
            InputStream is = s1.getInputStream();
            DataInputStream dis = new DataInputStream(is);
            OutputStream os = s1.getOutputStream();
            DataOutputStream dos = new DataOutputStream(os);
            InputStreamReader isr = new InputStreamReader(System.in);
            BufferedReader br = new BufferedReader(isr);
            
            String info;
            while(true){
                info = br.readLine();
                dos.writeUTF(info);
                if(info.equals("bye"))
                    break;
                info = dis.readUTF();
                System.out.println("对方说: " + info);
                if(info.equals("bye"))
                    break;
            }
            dis.close();            
            dos.close();
            s1.close();
        }catch (SocketException e) {
                System.out.println("网络连接异常，程序退出!");
        }catch (IOException e) {
            e.printStackTrace();        
        }
    }
}

import java.io.*;
import java.net.Socket;
import java.net.ServerSocket;
import java.net.SocketException;

public class TestServer {
    public static void main(String args[]) {
        try {        
            ServerSocket s = new ServerSocket(8884);
            Socket s1 = s.accept();
            OutputStream os = s1.getOutputStream();
            DataOutputStream dos = new DataOutputStream(os);
            InputStream is = s1.getInputStream();
            DataInputStream dis = new DataInputStream(is);
            InputStreamReader isr = new InputStreamReader(System.in);
            BufferedReader br = new BufferedReader(isr);
            
            String info;
            while(true){
                info = dis.readUTF();
                System.out.println("对方说: " + info);
                if(info.equals("bye"))
                    break;
                info = br.readLine();
                dos.writeUTF(info);
                if(info.equals("bye"))
                    break;
            }
            dis.close();            
            dos.close();
            s1.close();
            s.close();
        }catch (SocketException e) {
                System.out.println("网络连接异常，程序退出!");
        }catch (IOException e) {
            e.printStackTrace();        
        }
    }
}