Java使用socket实现两人聊天对话

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;

/**
 * User: HYY
 * Date: 13-10-29
 * Time: 下午9:57
 * To change this template use File | Settings | File Templates.
 */
public class Server {

    public static final int SERVER_PORK = 10000;

    public static void main(String[] args) throws IOException, InterruptedException {
        ServerSocket serverSocket = new ServerSocket(SERVER_PORK);
        System.out.println("正在监听 " + SERVER_PORK + " 端口！");
        Socket socket;
        BufferedReader bufferedReader;
        while (true) {
            socket = serverSocket.accept();
            System.out.println("一客户端连接。");
            Thread writerThread = new Thread(new MyServerWriter(socket));
            writerThread.start();

            bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            try {
                String msg;//客户端发过来的信息
                while ((msg = bufferedReader.readLine()) != null) {
                    System.out.println("##客户端：" + msg);
                }
            } catch (IOException e) {
                try {
                    if (!socket.isClosed()) {
                        socket.close();
                    }
                } catch (IOException e1) {
                    System.out.println("关闭socket出现错误");
                }
            }
            System.out.println("提示：当前客户端已经断开连接，服务器正等待下一个客户端的连接。");
        }
    }
}

class MyServerWriter implements Runnable {
    private Socket socket = null;
    private PrintWriter printWriter;
    private Scanner scanner;

    public MyServerWriter(Socket socket) throws IOException {
        this.socket = socket;
        scanner = new Scanner(System.in);
        printWriter = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()), true);
    }

    @Override
    public void run() {
        String msg;//要发送的信息
        try {
            while ((msg = scanner.nextLine()) != null) {
                if (msg.equals("88")) {
                    if (!socket.isClosed()) {
                        System.out.println("服务器手动与客户端断开");
                        socket.close();
                    }
                    break;
                }
                printWriter.println(msg);
            }
        } catch (IOException io) {
            System.out.println("关闭socket出现问题");
        } catch (Exception e) {
            System.out.println("异常关闭客户端（可能是直接关闭退出窗口）");
        }
    }
}

 

 

import java.io.*;
import java.net.Socket;
import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * User: HYY
 * Date: 13-10-29
 * Time: 下午10:31
 * To change this template use File | Settings | File Templates.
 */
public class Client {
    public static void main(String[] args) throws IOException {
        Socket socket = new Socket("127.0.0.1", 10000);
        System.out.println("连接服务器成功！如果想断开连接请输入88（回车）");
        new Thread(new MyClientWriter(socket)).start();

        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        try {
            String msg;//服务器发过来的信息
            while ((msg = bufferedReader.readLine()) != null) {
                System.out.println("##服务器：" + msg);
            }
        } catch (IOException e) {
            System.out.println("警告：断开连接！");
            try {
                if (!socket.isClosed()) {
                    socket.close();
                }
            } catch (IOException e1) {
                System.out.println("读取线程：关闭socket出现错误");
            }
        }
        System.exit(1);
    }
}

class MyClientWriter implements Runnable{
    private Socket socket = null;
    private PrintWriter printWriter;
    private Scanner scanner;

    public MyClientWriter(Socket socket) throws IOException {
        this.socket = socket;
        scanner = new Scanner(System.in);
        printWriter = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()), true);
    }

    @Override
    public void run() {
        String msg;//要发送的信息
        try {
            while ((msg = scanner.nextLine()) != null) {
                System.out.println("isClosed="+socket.isClosed());
                if(socket.isClosed()) {
                    break;
                } else {
                    if(msg.equals("88")) {
                        break;
                    }
                }
                printWriter.println(msg);
            }
        } catch (Exception e) {
//            System.out.println("异常关闭客户端（可能是直接关闭退出窗口）");
        }
        System.out.println("写线程准备死亡");
    }
}