socket多线程

直接上代码把。没啥好说的。

客户端

package util.thread_socket;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

import java.io.PrintWriter;

import java.net.InetAddress;

import java.net.Socket;

import java.net.UnknownHostException;

public class ThreadClient {

public ThreadClient(){

try {

int no;

InetAddress address = InetAddress.getByName("localhost");

for(no=0;no<5;no++){

new ThreadClientCode(address);

}

} catch (UnknownHostException e) {

e.printStackTrace();

}

}

public static void main(String[] args) {

new ThreadClient();

}

}

class ThreadClientCode extends Thread {

private int port = 9999;

private Socket socket = null;

private static int count = 0;

private int id = count++;

private BufferedReader in = null;

private PrintWriter out = null;

public ThreadClientCode(InetAddress address){

try {

socket = new Socket(address ,port);

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

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

start();

} catch (IOException e) {

e.printStackTrace();

}

}

public void run(){

try {

out.println(" id " + id);

String str = in.readLine();

System.out.println(str);

out.println("bye");

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

socket.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

服务端

package util.thread_socket;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

import java.io.PrintWriter;

import java.net.ServerSocket;

import java.net.Socket;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.concurrent.atomic.AtomicInteger;

public class ThreadServer {

private int port = 9999;

private ServerSocket server = null;

private static AtomicInteger count = new AtomicInteger(0);

public ThreadServer() throws IOException{

server = new ServerSocket(port);

System.out.println(" server start at port: " + port);

try {

while(true){

Socket socket = server.accept();

count.addAndGet(1);

new ThreadServerCode(socket);

}

} finally {

server.close();

}

}

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

new ThreadServer();

}

class ThreadServerCode extends Thread {

private Socket socket = null;

private BufferedReader in = null;

private PrintWriter out = null;

public ThreadServerCode(){

}

public ThreadServerCode(Socket socket){

try {

this.socket = socket;

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

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

start();

} catch (IOException e) {

e.printStackTrace();

}

}

public void run(){

try {

while(true){

String str = in.readLine();

if(str==null || "bye".equals(str)){

count.decrementAndGet();

break;

}

System.out.println(str);

out.println("\n 当前连接数: " + count.get() + " 时间 : " +

new SimpleDateFormat("yyyy-mm-dd hh:mm:ss").format(new Date()).toString() +

" 接受信息info :" +

str);

}

System.out.println("close server");

} catch (IOException e) {

e.printStackTrace();

} finally {

try {

socket.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

}