（一）实验目的

1、掌握JAVA中与网络程序开发相关的知识点；
2、理解并掌握网络编程开发思想及方法；
3、熟悉项目开发的分包方法和依据；
4、实现聊天室中客服端和服务器端的实现方法；
5、熟悉多线程程序开发方法；
6、完善界面设计。

（二）实验内容和步骤

1、完成聊天程序的服务器端和客服端的界面设计；
2、完成优化聊天程序的服务器端多线程编码；
3、完成与优化聊天程序的客服端编码。

👨‍🏫 参考视频教程
👨‍🏫 代码参考 pxj 佬

💖 ServerChatOnline.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;public class ServerChatOnline extends JFrame implements ActionListener
{private JTextArea jta;private JScrollPane jsp;private JPanel Jp;private JTextField jtf;private JButton jb;private BufferedWriter bw;private void create_windows(){jta = new JTextArea();// 编辑文本区域不可编辑jta.setEditable(false);// 将文本域丢到滑动条中jsp = new JScrollPane(jta);Jp = new JPanel();jtf = new JTextField(10);jb = new JButton("发送");Jp.add(jtf);Jp.add(jb);this.add(jsp, BorderLayout.CENTER);this.add(Jp, BorderLayout.SOUTH);this.setTitle("聊天室-服务器");this.setSize(300, 300);this.setLocation(300, 300);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);jta = new JTextArea();// 编辑文本区域不可编辑jta.setEditable(false);// 将文本域丢到滑动条中jsp = new JScrollPane(jta);Jp = new JPanel();jtf = new JTextField(10);jtf.addKeyListener(new KeyAdapter(){@Overridepublic void keyPressed(KeyEvent e){if (e.getKeyCode() == 10){String text = jtf.getText();text = "s:" + text;jta.append(text + "\n");try{bw.write(text);bw.newLine();bw.flush();jtf.setText("");} catch (IOException ex){ex.printStackTrace();}}}});jb = new JButton("发送");jb.addActionListener(this);Jp.add(jtf);Jp.add(jb);this.add(jsp, BorderLayout.CENTER);this.add(Jp, BorderLayout.SOUTH);this.setTitle("聊天室-服务器");this.setSize(300, 300);this.setLocation(300, 300);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);this.setVisible(true);}private void work(){try{// 创建服务端套接字ServerSocket serverSocket = new ServerSocket(10086);// 等待链接Socket socket = serverSocket.accept();// 获取socket输入流BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));// 获取socket输出流bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));String line = null;// 循环读取数据，将其拼接到文本域中while ((line = br.readLine()) != null){// 将传来的数据在文本域中显示出来jta.append(line + System.lineSeparator());}// 关闭socketserverSocket.close();} catch (IOException e){e.printStackTrace();}}public ServerChatOnline(){create_windows();work();}@Overridepublic void actionPerformed(ActionEvent e){String text = jtf.getText();text = "s:" + text;jta.append(text + "\n");try{bw.write(text);bw.newLine();bw.flush();jtf.setText("");} catch (IOException ex){ex.printStackTrace();}}
}

💖 ServerChatOnline.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;public class ServerChatOnline extends JFrame implements ActionListener
{private JTextArea jta;private JScrollPane jsp;private JPanel Jp;private JTextField jtf;private JButton jb;private BufferedWriter bw;private void create_windows(){jta = new JTextArea();// 编辑文本区域不可编辑jta.setEditable(false);// 将文本域丢到滑动条中jsp = new JScrollPane(jta);Jp = new JPanel();jtf = new JTextField(10);jb = new JButton("发送");Jp.add(jtf);Jp.add(jb);this.add(jsp, BorderLayout.CENTER);this.add(Jp, BorderLayout.SOUTH);this.setTitle("聊天室-服务器");this.setSize(300, 300);this.setLocation(300, 300);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);jta = new JTextArea();// 编辑文本区域不可编辑jta.setEditable(false);// 将文本域丢到滑动条中jsp = new JScrollPane(jta);Jp = new JPanel();jtf = new JTextField(10);jtf.addKeyListener(new KeyAdapter(){@Overridepublic void keyPressed(KeyEvent e){if (e.getKeyCode() == 10){String text = jtf.getText();text = "s:" + text;jta.append(text + "\n");try{bw.write(text);bw.newLine();bw.flush();jtf.setText("");} catch (IOException ex){ex.printStackTrace();}}}});jb = new JButton("发送");jb.addActionListener(this);Jp.add(jtf);Jp.add(jb);this.add(jsp, BorderLayout.CENTER);this.add(Jp, BorderLayout.SOUTH);this.setTitle("聊天室-服务器");this.setSize(300, 300);this.setLocation(300, 300);this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);this.setVisible(true);}private void work(){try{// 创建服务端套接字ServerSocket serverSocket = new ServerSocket(10086);// 等待链接Socket socket = serverSocket.accept();// 获取socket输入流BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));// 获取socket输出流bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));String line = null;// 循环读取数据，将其拼接到文本域中while ((line = br.readLine()) != null){// 将传来的数据在文本域中显示出来jta.append(line + System.lineSeparator());}// 关闭socketserverSocket.close();} catch (IOException e){e.printStackTrace();}}public ServerChatOnline(){create_windows();work();}@Overridepublic void actionPerformed(ActionEvent e){String text = jtf.getText();text = "s:" + text;jta.append(text + "\n");try{bw.write(text);bw.newLine();bw.flush();jtf.setText("");} catch (IOException ex){ex.printStackTrace();}}
}

💖 ChatOnlineDemo.java

public class ChatOnlineDemo
{public static void main(String[] args){new Thread(new Thread1()).start();new Thread(new Thread2()).start();}
}class Thread1 implements Runnable
{@Overridepublic synchronized void run(){ServerChatOnline S = new ServerChatOnline();}
}class Thread2 implements Runnable
{@Overridepublic synchronized void run(){ClientChatOnline C = new ClientChatOnline();}
}

🏆 运行结果