java简单的控制台聊天室_java console聊天工具-优快云博客

本文链接：https://blog.youkuaiyun.com/jiaomenglei/article/details/52302643

本文介绍了如何使用Java编程创建一个简单的控制台聊天室。通过标准输入输出，用户可以在同一控制台上进行交互式对话，体验基本的多人聊天功能。这个项目适合初学者练习基本的I/O操作和多线程概念。

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//Client.java客户端
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.Socket;
 
public class Client {
 
	public static void main(String[] args) throws Exception {
		// TODO Auto-generated method stub
		Socket client = new Socket("localhost",8888);
		new Thread(new ClientThread(client)).start();
		BufferedReader buf = new BufferedReader(new InputStreamReader(client.getInputStream()));
		boolean flag = true;
		while(flag){
			String rec = buf.readLine();
			System.out.println(rec);
		}
	}
}
 
class ClientThread implements Runnable{
	private Socket client = null;
	public ClientThread(Socket client){
		this.client = client;
	}
	public void run(){
		try{
			BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
			PrintStream out = new PrintStream(client.getOutputStream());
			while(true){
				String content = input.readLine();
				out.println(content);
			}
		}catch(Exception e){
			e.printStackTrace();
		}
	}
}

//Server.java服务器端
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
 
public class Server {
	private static List<Socket> clients = new ArrayList<Socket>();
 
	public static void main(String[] args) throws Exception {
		ServerSocket server = new ServerSocket(8888);
		Socket client = null;
		boolean flag = true;
		while (flag) {
			System.out.println("服务器正在运行,等待连接");
			client = server.accept();
			clients.add(client);
			new Thread(new ServerThread(client, clients)).start();
		}
		client.close();
		server.close();
	}
}
 
class ServerThread implements Runnable {
	private Socket client = null;
	private PrintStream out = null;
	private BufferedReader read = null;
	private List<Socket> clients;
 
	public ServerThread(Socket client, List<Socket> clients) throws Exception {
		this.client = client;
		this.clients = clients;
		read = new BufferedReader(new InputStreamReader(client.getInputStream()));
	}
 
	@Override
	public void run() {
		String content = null;
		try {
			while (true) {
				content = read.readLine();
				if(content!=null){
					for(Socket socket:clients){
						if(socket!=client){
							out = new PrintStream(socket.getOutputStream());
							out.println(content);
						}
					}
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}