基于TCP协议的服务器（多线程）

 

import java.io.BufferedOutputStream;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.net.InetAddress;

import java.net.ServerSocket;

import java.net.Socket;

import java.util.Scanner;

import java.util.Timer;

import java.util.TimerTask;

 

class Server extends Thread

{

    private BufferedReader in = null;

    private PrintWriter out = null;

    private Socket socket = null;

    public static int count=0;

    public JabberClient dangQianClient=null;

    Scanner sc = new Scanner(System.in);

 

    class JieShou extends TimerTask

    {

 

        String temp = null;

 

        public void run()

        {

            try

            {temp = in.readLine();

            if(temp!=null)    

 

                System.out.println(temp);

 

            } catch (Exception e)

            {System.out.println( e.getMessage());

            }

        }

    }

 

    public Server(Socket socket) throws IOException

    {

 

        this.socket = socket;

        System.out.println("有一个新的客户端连接"+socket);

        System.out.println("当前的客户端数目： "+ ++count);

        in = new BufferedReader(new InputStreamReader(socket.getInputStream()));

        out = new PrintWriter(new BufferedOutputStream(socket.getOutputStream()), true);

        Timer timer = new Timer();

        timer.schedule(new JieShou(), 100, 300);

        this.start();//开始线程

    }

 

    public void run()

    {

        while (true)

        {

            String temp=sc.next();//将此写到线程内，可与当前连接客户端对话  但是 并不能知道连接的是哪个客户端

             out.println("服务器： " + temp);

        }

 

 

    }

}

 

public class MultiJabberServer

{

 

    public static final int port = 8080;

 

    public static void main(String[] args) throws IOException

    {

 

        InetAddress addr=InetAddress.getLocalHost();

        System.out.println(addr.getHostAddress());

        ServerSocket serverSocket = new ServerSocket(port);

        try

        {

            while (true)

            {

 

                Socket socket = serverSocket.accept();//循环等待客户端连接

                try

                {

                    new Server(socket);//有一个客户端连接即开始一个新的线程与客户端通信  然后继续等待客户端的连接请求

                } catch (Exception e)

                {

                    socket.close();

                }  

            }

        } finally

        {

            serverSocket.close();

            System.exit(0);

        }

    }

 

}