java多线程tcp_TCP多线程（线程池）

package Threed;
/**
 * Created by SuPhoebe on 2015/12/27.
 * 基于TCP协议的Socket通信，实现用户登陆
 * 服务器端
 */

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;


public class Server {
    private static ExecutorService executor = Executors.newFixedThreadPool(15);
    public static void main(String[] args) {
        try {
            //1.创建一个服务器端Socket，即ServerSocket，指定绑定的端口，并监听此端口
            ServerSocket serverSocket=new ServerSocket(8520);
            Socket socket=null;
            while(true){
                Thread thread = new Thread(new ServerThread(socket));
                //调用accept()方法开始监听，等待客户端的连接
                socket=serverSocket.accept();
                executor.execute(new ServerThread(socket));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

//     void TcpServer(){
//
//    }
}

上面是服务端

下面是多线程

package Threed;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;

public class ServerThread implements Runnable{

    Socket socket = null;//和本线程相关的Socket

    public ServerThread(Socket socket) {
        this.socket = socket;
    }

    @Override
    public void run() {
        InputStream is = null;
        InputStreamReader isr = null;
        BufferedReader br = null;
        OutputStream os = null;
        PrintWriter pw = null;

        try {
          is= socket.getInputStream();

            while (true) {
                byte[] bytes = new byte[1024];
                int len = is.read(bytes);
                System.out.println(new String(bytes,0,len));
            }
            //获取输出流，响应客户端的请求

        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            //关闭资源即相关socket
            try {
                if(pw!=null)
                    pw.close();
                if(os!=null)
                    os.close();
                if(br!=null)
                    br.close();
                if(isr!=null)
                    isr.close();
                if(is!=null)
                    is.close();
                if(socket!=null)
                    socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }

        }

    }

}

客户端我用的是TCP&UDP测试工具。