import java.awt.BorderLayout; import java.awt.EventQueue; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.util.HashMap; import java.util.Map; import javax.swing.JButton; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextField; import javax.swing.ListSelectionModel; import javax.swing.border.EmptyBorder; public class SensitiveWordAnalyzer extends JFrame { private JPanel contentPane; private JTextField textFile; private JTextField textKeyword; private JList<String> listWords; private Map<String, Integer> wordMap; /** * Launch the application. */ public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { SensitiveWordAnalyzer frame = new SensitiveWordAnalyzer(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } /** * Create the frame. */ public SensitiveWordAnalyzer() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300);分析这段代码

很高兴回答你的问题！下面是一个简单的UDP Socket聊天室的GUI界面的示例代码（UDPChatGUI.java）： ```java import java.awt.BorderLayout; import java.awt.EventQueue; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.IOException; import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.border.EmptyBorder; public class UDPChatGUI extends JFrame { private JPanel contentPane; private JTextField txtMessage; private JTextArea txtChat; private JButton btnSend; private DatagramSocket socket; private InetAddress address; private int port; private Thread receiveThread; public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { UDPChatGUI frame = new UDPChatGUI(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } public UDPChatGUI() { setTitle("UDP Chat"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); contentPane.setLayout(new BorderLayout(0, 0)); setContentPane(contentPane); txtChat = new JTextArea(); txtChat.setEditable(false); JScrollPane scrollPane = new JScrollPane(txtChat); contentPane.add(scrollPane, BorderLayout.CENTER); JPanel panel = new JPanel(); contentPane.add(panel, BorderLayout.SOUTH); panel.setLayout(new BorderLayout(0, 0)); txtMessage = new JTextField(); panel.add(txtMessage, BorderLayout.CENTER); txtMessage.setColumns(10); btnSend = new JButton("Send"); btnSend.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { sendMessage(); } }); panel.add(btnSend, BorderLayout.EAST); // Create a new DatagramSocket try { socket = new DatagramSocket(); } catch (IOException e1) { e1.printStackTrace(); } // Get the IP address and port number of the server try { address = InetAddress.getByName("localhost"); port = 8888; } catch (Exception e1) { e1.printStackTrace(); } // Start a new thread to receive messages from the server receiveThread = new Thread(new Runnable() { public void run() { byte[] buffer = new byte[1024]; DatagramPacket packet = new DatagramPacket(buffer, buffer.length); while (true) { try { socket.receive(packet); String message = new String(packet.getData(), 0, packet.getLength()); txtChat.append("Server: " + message + "\n"); } catch (IOException e) { e.printStackTrace(); } } } }); receiveThread.start(); } private void sendMessage() { try { // Get the message from the text field String message = txtMessage.getText(); // Convert the message to bytes byte[] buffer = message.getBytes(); // Create a new DatagramPacket DatagramPacket packet = new DatagramPacket(buffer, buffer.length, address, port); // Send the packet socket.send(packet); // Append the message to the chat window txtChat.append("Me: " + message + "\n"); // Clear the text field txtMessage.setText(""); } catch (IOException e) { e.printStackTrace(); } } } ``` 这个程序使用了Java的Swing GUI库，创建了一个简单的聊天室界面，包括一个文本框和一个发送按钮。当用户点击发送按钮时，程序将文本框中的消息发送到服务器，并将其显示在聊天窗口中。程序还启动了一个单独的线程来接收来自服务器的消息，并将它们显示在聊天窗口中。 请注意，这个示例程序仅用于演示目的，不能直接在生产环境中使用，因为它缺乏安全性和错误处理。在实际应用中，您需要更多的代码来处理异常情况，如网络连接中断、数据包丢失等。

好的，以下是一个简单的UDP聊天室GUI界面程序的实现，您可以参考一下： UDPChatGUl.java： ```java import java.awt.BorderLayout; import java.awt.EventQueue; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.IOException; import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; import java.net.SocketException; import java.util.HashMap; import java.util.Map; import javax.swing.DefaultListModel; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.border.EmptyBorder; public class UDPChatGUl extends JFrame { private JPanel contentPane; private JTextField textField; private JTextArea textArea; private JList<String> list; private DefaultListModel<String> listModel; private Map<String, String> friendMap; private DatagramSocket socket; private DatagramPacket packet; public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { UDPChatGUl frame = new UDPChatGUl(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } public UDPChatGUl() throws SocketException { setTitle("UDP聊天室"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setBounds(100, 100, 450, 300); contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); setContentPane(contentPane); contentPane.setLayout(null); textField = new JTextField(); textField.setBounds(10, 227, 313, 23); contentPane.add(textField); textField.setColumns(10); JButton sendButton = new JButton("发送"); sendButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { send(); } }); sendButton.setBounds(333, 227, 91, 23); contentPane.add(sendButton); JScrollPane scrollPane = new JScrollPane(); scrollPane.setBounds(10, 10, 313, 206); contentPane.add(scrollPane); textArea = new JTextArea(); scrollPane.setViewportView(textArea); listModel = new DefaultListModel<String>(); list = new JList<String>(listModel); list.setBounds(333, 10, 91, 206); contentPane.add(list); friendMap = new HashMap<String, String>(); // 创建服务器端socket socket = new DatagramSocket(12345); // 启动接收线程 new Thread(new Runnable() { public void run() { receive(); } }).start(); // 向服务器端请求好友列表 requestFriendList(); } // 发送消息 private void send() { String message = textField.getText(); if (message != null && !message.trim().equals("")) { String friend = list.getSelectedValue(); if (friend != null) { String friendAddress = friendMap.get(friend); if (friendAddress != null) { try { byte[] data = message.getBytes(); InetAddress address = InetAddress.getByName(friendAddress.split(":")[0]); int port = Integer.parseInt(friendAddress.split(":")[1]); DatagramPacket packet = new DatagramPacket(data, data.length, address, port); socket.send(packet); textArea.append("我对" + friend + "说：" + message + "\n"); textField.setText(""); } catch (IOException e) { e.printStackTrace(); } } } } } // 接收消息 private void receive() { while (true) { try { byte[] data = new byte[1024]; packet = new DatagramPacket(data, data.length); socket.receive(packet); String message = new String(packet.getData(), 0, packet.getLength()); String friend = getFriend(packet.getAddress().getHostAddress(), packet.getPort()); textArea.append(friend + "对我说：" + message + "\n"); } catch (IOException e) { e.printStackTrace(); } } } // 向服务器端请求好友列表 private void requestFriendList() { try { byte[] data = "list".getBytes(); InetAddress address = InetAddress.getByName("localhost"); int port = 12345; DatagramPacket packet = new DatagramPacket(data, data.length, address, port); socket.send(packet); } catch (IOException e) { e.printStackTrace(); } } // 处理好友列表信息 private void handleFriendList(String message) { String[] friends = message.split(","); for (String friend : friends) { String[] info = friend.split(":"); String name = info[0]; String address = info[1] + ":" + info[2]; friendMap.put(name, address); listModel.addElement(name); } } // 获取好友信息 private String getFriend(String hostAddress, int port) { for (Map.Entry<String, String> entry : friendMap.entrySet()) { String value = entry.getValue(); String[] info = value.split(":"); if (info[0].equals(hostAddress) && info[1].equals(String.valueOf(port))) { return entry.getKey(); } } return null; } } ``` 上述代码中，我们使用了Java的Swing库来实现GUI界面。程序分为客户端和服务器端两部分，其中，客户端负责向服务器端请求好友列表、发送消息和接收消息，而服务器端只负责维护好友列表并定时向客户端广播好友列表信息。 在实现中，我们使用了UDP协议进行通信。客户端向服务器端发送请求获取好友列表的信息，服务器端在收到请求后会将好友列表信息发送给客户端。客户端接收到好友列表信息后将其显示在GUI界面的好友列表中。客户端向指定好友发送消息时，需要获取该好友的IP地址和端口号，并通过UDP连接向该好友发送消息。当客户端接收到其他好友发送的消息时，需要在聊天窗口中显示该消息。 再次提醒，这是一个简单的UDP聊天室GUI界面程序的实现，具体的实现细节和代码，需要根据您的具体需求和环境进行调整。