package cn.wang;

import java.io.*;

import java.net.*;

public class Server {

static int num = 1;//客戶端計(jì)數(shù)

public static void main(String[] args) {

// TODO Auto-generated method stub

ServerSocket server = null;

Socket client = null;

while(true) {

try {

server = new ServerSocket(4444);

//綁定端口，監(jiān)聽客戶端

} catch (IOException e) {

// TODO Auto-generated catch block

System.out.println("Error:"+e);

}

try {

client = server.accept();

//與客戶端建立連接

} catch (IOException e) {

// TODO Auto-generated catch block

System.out.println("接受請(qǐng)求失敗！");

System.exit(-1);

}

System.out.println("Client["+Server.num+"]登錄...");

ServerThread st = new ServerThread(client);

Thread t= new Thread(st);

//監(jiān)聽到客戶端，為他創(chuàng)建線程，主程序返回繼續(xù)監(jiān)聽

t.start();

try {

server.close();

} catch (IOException e) {

// TODO Auto-generated catch block

System.out.println("關(guān)閉失敗！");

}

num++;

}

}

public static class ServerThread implements Runnable{

private Socket client;

public ServerThread(Socket client) {

this.client = client;

}

public void run() {

try {

BufferedReader is = new BufferedReader(new InputStreamReader(client.getInputStream()));

//將從客戶端接受的信息存放到緩存is中

PrintWriter os = new PrintWriter(client.getOutputStream());

//從socket獲取客戶端的輸出流，通過os向客戶端發(fā)送消息

BufferedReader sin = new BufferedReader(new InputStreamReader(System.in));

//建立緩存，為后面輸入數(shù)據(jù)做準(zhǔn)備

System.out.println("Client:"+is.readLine());

//打印客戶端發(fā)來的信息

String inputString = sin.readLine();

//從鍵盤輸入信息，存放在inputString中

while(inputString!=null&&inputString.trim().equals("quit")){

os.println(inputString);

//os.println向客戶端發(fā)送消息，內(nèi)容是inputString

os.flush();

//刷新輸出流，使client馬上得到該信息

System.out.println("Server發(fā)送的信息為:"+inputString);

//打印服務(wù)器向客戶端發(fā)送的信息

System.out.println("Client發(fā)來的信息為:"+is.readLine());

//打印客戶端發(fā)來的信息

inputString = sin.readLine();

//繼續(xù)讀入數(shù)據(jù)

}

os.close();//關(guān)閉Socket輸出流

is.close();//關(guān)閉Socket輸入流

client.close();//關(guān)閉Socket

System.out.println("通信結(jié)束！");

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

}

總結(jié)

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