TCP通信实现：多发多收消息、实现可以同时接受多个客户端

 

 

package com.czie.d8_socket;

import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.Socket;
import java.util.Scanner;

/**
 * FileName: CilentDemo
 * Author:   lps
 * Date:     2022/4/20 13:12
 * Sign:刘品水 Q：1944900433
 */
public class CilentDemo {
    public static void main(String[] args) {
        try {
            System.out.println("客户端启动成功");
            //Socket(String host, int port) 创建流套接字并将其连接到指定主机上的指定端口号。
            Socket socket = new Socket("192.168.10.102",22222);
            OutputStream os = socket.getOutputStream();
            //把低级的字节流包装成打印流
            PrintStream ps = new PrintStream(os);
            //发送消息
            Scanner sc = new Scanner(System.in);
            while (true) {
                System.out.println("请说：");
                String msg = sc.nextLine();
                ps.println(msg);
                ps.flush();
            }

            //关闭资源
            //socket.close();

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

package com.czie.d8_socket;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * FileName: ServerDemo
 * Author:   lps
 * Date:     2022/4/20 13:12
 * Sign:刘品水 Q：1944900433
 */
public class ServerDemo {
    public static void main(String[] args) {
        try {
            System.out.println("服务端启动成功");
            ServerSocket ss = new ServerSocket(22222);
            //定义以恶搞死循环由主线程负责不断接受客户端socket管道链接
            while (true) {
                //每接受一个客户端socket的链接交给一个独立的子线程负责读取信息
                Socket socket = ss.accept();

                System.out.println(socket.getRemoteSocketAddress()+"他来了,潇洒的来了");
                //开始创建独立线程处理socket
                new ServerReaderThread(socket).start();
            }

        } catch (IOException e) {
            e.printStackTrace();
        }


    }
}

package com.czie.d8_socket;

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

/**
 * FileName: ServerReaderThread
 * Author:   lps
 * Date:     2022/4/20 14:26
 * Sign:刘品水 Q：1944900433
 */
public class ServerReaderThread extends Thread{
    private Socket socket;
    public ServerReaderThread(Socket socket){
        this.socket=socket;
    }
    @Override
    public void run() {
        try {
            InputStream is = socket.getInputStream();
            //包装成缓冲字符输入流
            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            //按照行读取消息
            String msg;
            while ((msg = br.readLine()) != null) {
                System.out.println(socket.getRemoteSocketAddress() + "说了：" + msg);
            }
        } catch (IOException e) {
            System.out.println(socket.getRemoteSocketAddress()+"下线了！！");
        }
    }
}