基于TCP协议编写一对一聊天室

代码分为两部分

第一部分:服务端,用于接收和发送消息,并且监听客户端是否在线

package com.company;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class Line_Tcp {
    public static void main(String[] args) throws IOException {
        // 创建服务端套接字对象
        ServerSocket serverSocket = new ServerSocket(10081);
        System.out.println("服务端已上线");
        // 监听客户端
        Socket socket = serverSocket.accept();
        // 创建一个线程池来进行发送和接收消息
        ThreadPoolExecutor tpe = new ThreadPoolExecutor(2, 4, 10, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
        // 首先发送消息
        tpe.execute(() ->{
            Scanner scanner = new Scanner(System.in);
            try {
                OutputStream outputStream = socket.getOutputStream();
                while(true) {
                    System.out.println("请输入你要发送的内容");
                    String content = scanner.nextLine();
                    outputStream.write(content.getBytes());
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        });
        // 在使用一个线程来接收消息
        tpe.execute(() ->{
            try {
                InputStream inputStream = socket.getInputStream();
                byte[] buf = new byte[1024*4];
                while (true){
                    int read = inputStream.read(buf);
                    System.out.println("客户端: " + new String(buf,0,read));
                }

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



    }
}

第二部分:客户端,用于接收和发送消息

package com.company;

import jdk.nashorn.internal.ir.WhileNode;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Scanner;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class Client_Tcp {
    public static void main(String[] args) throws IOException {
        // 创建Socket套接字
        Socket socket = new Socket(InetAddress.getLocalHost(),10081);
        System.out.println("客户端上线");
        // 创建一个线程池来接收和发送消息
        ThreadPoolExecutor tpe = new ThreadPoolExecutor(2, 4, 10, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10));
        // 第一个线程用来接收消息
        tpe.execute(() ->{
            // 创建一个字节输入流来读取消息
            try {
                InputStream inputStream = socket.getInputStream();
                // 创建一个Byte数组用来读取消息
                byte[] buf = new byte[1024 * 4];
                while(true) {
                    int read = inputStream.read(buf);
                    System.out.println(new String(buf, 0, read));
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        });
        // 第二个线程用来发送消息
        tpe.execute(() ->{
            Scanner scanner = new Scanner(System.in);
            try {
                OutputStream outputStream = socket.getOutputStream();
                while(true) {
                    System.out.println("请输入你要发送的内容");
                    String concent = scanner.nextLine();
                    outputStream.write(concent.getBytes());
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        });
    }
}

最后实现图如下:
基于TCP协议编写一对一聊天室_第1张图片
基于TCP协议编写一对一聊天室_第2张图片

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