java聊天室实现带界面

Java聊天室实现带界面可以使用Java Swing界面库和Socket网络编程技术。

以下是一个简单的Java聊天室实现带界面的代码示例：

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

public class ChatClient extends JFrame implements ActionListener {

    private JTextField tf;
    private JTextArea ta;
    private JButton sendBtn;
    private Socket socket;
    private BufferedReader br;
    private BufferedWriter bw;

    public ChatClient() {
        super("Chat Client");

        tf = new JTextField();
        ta = new JTextArea();
        sendBtn = new JButton("Send");

        JScrollPane scrollPane = new JScrollPane(ta);

        JPanel panel = new JPanel();
        panel.setLayout(new BorderLayout());
        panel.add(tf, BorderLayout.CENTER);
        panel.add(sendBtn, BorderLayout.EAST);

        Container contentPane = getContentPane();
        contentPane.add(scrollPane, BorderLayout.CENTER);
        contentPane.add(panel, BorderLayout.SOUTH);

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(400, 300);
        setVisible(true);

        tf.addActionListener(this);
        sendBtn.addActionListener(this);

        try {
            socket = new Socket("localhost", 8000);
            br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
            new Thread(new ReceiveThread()).start();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public void actionPerformed(ActionEvent e) {
        try {
            String message = tf.getText();
            bw.write(message + "\n");
            bw.flush();
            ta.append("> " + message + "\n");
            tf.setText("");
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    class ReceiveThread implements Runnable {
        public void run() {
            try {
                while (true) {
                    String message = br.readLine();
                    ta.append("< " + message + "\n");
                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        new ChatClient();
    }
}

这个聊天室客户端程序包括一个文本框、一个文本域、一个发送按钮和一个接收线程。它使用Socket连接到localhost的8000端口，发送和接收消息。用户输入消息后按Enter键或点击发送按钮，消息就会发送到服务器，服务器将消息广播给所有客户端。当有新消息到达时，接收线程将读取消息并在文本域中显示。