java通信二：利用Socket实现聊天室功能

最近研究了下java socket通信基础，利用代码实现了一个简单的多人聊天室功能，现把代码共享下，希望能帮到有兴趣了解的人。

目录结构：

ChatClient:

package com.panda.chat;

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;

@SuppressWarnings("serial")
public class ChatClient extends Frame {
	private TextArea ta = new TextArea();
	private TextField tf = new TextField();
	private DataOutputStream dos = null;
	private DataInputStream dis = null;
	private Socket socket = null;
	private boolean bConnected = false;
	private Thread thread=null;
	public static void main(String[] args) {
		new ChatClient().frameClient();
	}
	public void frameClient(){
		setSize(400, 400);
		setLocation(400,300);
		add(ta,BorderLayout.NORTH);
		add(tf,BorderLayout.SOUTH);
		pack();
		tf.addActionListener(new TfListener());
		//关闭窗口事件监听
		this.addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e) {
				disconnected();
				System.exit(0);
			}
		});
		this.connect();
		setVisible(true);
	}
	//链接服务器地址
	private void connect(){
		try {
			socket = new Socket("127.0.0.1", 8888);
			thread=new Thread(new ChatThread());
			thread.start();
			dos = new DataOutputStream(socket.getOutputStream());
			dis = new DataInputStream(socket.getInputStream());
		} catch (UnknownHostException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	//断开连接
	private void disconnected(){
		bConnected = false;
		try {
			dos.close();
			dis.close();
			socket.close();
		} catch (IOException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
	}
	//键盘回车事件
	private class TfListener implements ActionListener{

		@Override
		public void actionPerformed(ActionEvent e) {
			String strMsg = tf.getText();
			tf.setText("");
			try {
				dos.writeUTF(strMsg);
				dos.flush();
			} catch (IOException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			}
		}
		
	}
	//开启线程接受服务器信息
	private class ChatThread implements Runnable{
		@Override
		public void run() {
			try {
				bConnected = true;
				while(bConnected){
					String msg = dis.readUTF();
					String taText = ta.getText();
					ta.setText(taText+msg+"\n");
				}
			} catch (SocketException e) {
				System.out.println("退出");;
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}
}

ChatServer:

package com.panda.chat;

import java.io.*;
import java.net.*;
import java.util.*;

public class ChatServer {
	private boolean started = false;
	private List chatThreads = new ArrayList();
	public static void main(String[] args) {
		new ChatServer().startServer();
	}
	private void startServer(){
		try {
			//开启服务端Socket
			ServerSocket seso = new ServerSocket(8888);
			started = true;
			while(started){
				//接受客户端连接请求
				Socket sos = seso.accept();
				System.out.println("一个客户端已连接");
				//开启线程处理客户端通信
				ChatThread ct = new ChatThread(sos);
				chatThreads.add(ct);
				new Thread(ct).start();
			}
		} catch (IOException e) {
			e.printStackTrace();
		} 
	}
	private class ChatThread implements Runnable{
		private Socket socket;
		private DataInputStream din=null;
		private DataOutputStream don=null;
		private boolean bConnected = false;
		public ChatThread(Socket socket) {
			super();
			this.socket = socket;
		}
		//发送信息的函数
		private void send(String strMsgIn){
			try{
				don.writeUTF(strMsgIn);
				don.flush();
			}catch(IOException e){
				e.printStackTrace();
			}
		}
		@Override
		public void run() {
			try{
				din = new DataInputStream(socket.getInputStream());
				don = new DataOutputStream(socket.getOutputStream());
				//读取数据
				bConnected = true;
				while(bConnected){
					String strMsgIn = din.readUTF();
					System.out.println(strMsgIn);
					//接收到数据后发送给每个客户端
					for(int i =0;i

运行ChatSever后，再同时打开多次ChatClient，就可以实现多人聊天了，你也试试。