Java网络编程-简易聊天室源码分享

简易的聊天小程序，在使用时请先开启服务器程序，再运行客户端程序

package socket;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * 服务器端窗口，先运行这个
 */
public class GUIServer {

    public static void main(String[] args) {
        // 创建窗体
        JFrame f = new JFrame("服务器");
        f.setLayout(null);
        // 设置大小和位置
        f.setSize(400, 300);
        f.setLocation(100, 200);

        JButton b = new JButton("发送");
        b.setBounds(290, 220, 80, 30);
        f.add(b);

        JTextField tf = new JTextField();
        tf.setBounds(10, 220, 260, 30);
        f.add(tf);

        JTextArea ta = new JTextArea();
        ta.setBounds(10, 10, 360, 200);
        f.add(ta);

        f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        f.setVisible(true);

        try {
            ServerSocket ss = new ServerSocket(8888);
            Socket s = ss.accept();

            b.addActionListener(new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    // 获取输入文本
                    String text = tf.getText();
                    Date date = new Date();
                    SimpleDateFormat sdf = new SimpleDateFormat("MM-dd HH:mm:ss");
                    String now = sdf.format(date);
                    ta.append(now +"\r\n我：" + text + "\r\n");
                    ta.setCaretPosition(ta.getText().length());
                    // 设置输入框为空
                    tf.setText("");
                    // 发送信息
                    try {
                        DataOutputStream dos = new DataOutputStream(s.getOutputStream());
                        dos.writeUTF(text);
                    } catch (IOException e1) {
                        e1.printStackTrace();
                    }
                }
            });

            // 接收信息线程
            new Thread() {
                @Override
                public void run() {
                    while (true) {
                        try {
                            // 获取其他用户的输入
                            DataInputStream dis = new DataInputStream(s.getInputStream());
                            String text = dis.readUTF();
                            String ip = s.getInetAddress().getHostAddress();
                            Date date = new Date();
                            SimpleDateFormat sdf = new SimpleDateFormat("MM-dd HH:mm:ss");
                            String now = sdf.format(date);
                            // 添加到页面上
                            ta.append(now + "\r\n" + ip + "：" + text + "\r\n");
                            ta.setCaretPosition(ta.getText().length());
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }.start();


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


    }

}

package socket;

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * 客户端程序
 */
public class GUIClient {

    public static void main(String[] args) {
        // 创建窗体
        JFrame f = new JFrame("客户端");
        f.setLayout(null);
        // 设置大小和位置
        f.setSize(400, 300);
        f.setLocation(100, 200);

        JButton b = new JButton("发送");
        b.setBounds(290, 220, 80, 30);
        f.add(b);

        JTextField tf = new JTextField();
        tf.setBounds(10, 220, 260, 30);
        f.add(tf);

        JTextArea ta = new JTextArea();
        ta.setBounds(10, 10, 360, 200);
        f.add(ta);

        f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        f.setVisible(true);

        try {
            Socket s = new Socket("127.0.0.1", 8888);

            b.addActionListener(new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    // 获取输入文本
                    String text = tf.getText();
                    Date date = new Date();
                    SimpleDateFormat sdf = new SimpleDateFormat("MM-dd HH:mm:ss");
                    String now = sdf.format(date);
                    ta.append(now +"\r\n我：" + text + "\r\n");
                    // 设置输入框为空
                    tf.setText("");
                    // 发送信息
                    try {
                        DataOutputStream dos = new DataOutputStream(s.getOutputStream());
                        dos.writeUTF(text);
                    } catch (IOException e1) {
                        e1.printStackTrace();
                    }
                }
            });

            // 接收信息线程
            new Thread() {
                @Override
                public void run() {
                    while (true) {
                        try {
                            // 获取其他用户的输入
                            DataInputStream dis = new DataInputStream(s.getInputStream());
                            String text = dis.readUTF();
                            String ip = s.getInetAddress().getHostAddress();
                            Date date = new Date();
                            SimpleDateFormat sdf = new SimpleDateFormat("MM-dd HH:mm:ss");
                            String now = sdf.format(date);
                            // 添加到页面上
                            ta.append(now + "\r\n" + ip + "：" + text + "\r\n");
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }.start();


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

}