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");

    }

}