JAVA+JSP的聊天室.rar

package org.jetic.web.chat; import java.awt.*; import java.awt.event.*; import java.applet.*; import javax.swing.*; import com.borland.jbcl.layout.*; import javax.swing.border.*; import java.io.*; import java.net.*; public class ChatApplet extends JApplet { boolean isStandalone = false; BorderLayout borderLayout1 = new BorderLayout(); Border border1; JPanel jPanel2 = new JPanel(); Border border2; BorderLayout borderLayout2 = new BorderLayout(); JPanel jPanel1 = new JPanel(); JButton buttonSend = new JButton(); BorderLayout borderLayout3 = new BorderLayout(); JPanel jPanel3 = new JPanel(); Border border3; BorderLayout borderLayout4 = new BorderLayout(); JTextField textTalk = new JTextField(); JPanel jPanel4 = new JPanel(); Border border4; BorderLayout borderLayout5 = new BorderLayout(); JScrollPane jScrollPane1 = new JScrollPane(); JTextArea textMessages = new JTextArea(); PrintWriter out = null; /**Get a parameter value*/ public String getParameter(String key, String def) { return isStandalone ? System.getProperty(key, def) : (getParameter(key) != null ? getParameter(key) : def); } /**Construct the applet*/ public ChatApplet() { } /**Initialize the applet*/ public void init() { try { jbInit(); Client client = new Client(this); if (client.isConnected()) out = client.getOutputStream(); else appendMessage("大大的错误！！"); } catch(Exception e) { e.printStackTrace(); } } /**Component initialization*/ private void jbInit() throws Exception { border1 = BorderFactory.createEmptyBorder(9,9,9,9); border2 = BorderFactory.createEmptyBorder(9,9,9,9); border3 = BorderFactory.createEmptyBorder(2,0,2,5); border4 = BorderFactory.createEmptyBorder(0,0,5,0); this.setSize(new Dimension(400,300)); this.getContentPane().setLayout(borderLayout1); jPanel2.setBorder(border2); jPanel2.setLayout(borderLayout2); buttonSend.setFocusPainted(false); buttonSend.setText("发 送"); buttonSend.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { buttonSend_actionPerformed(e); } }); jPanel1.setLayout(borderLayout3); jPanel3.setBorder(border3); jPanel3.setLayout(borderLayout4); jPanel4.setBorder(border4); jPanel4.setLayout(borderLayout5); textTalk.addKeyListener(new java.awt.event.KeyAdapter() { public void keyPressed(KeyEvent e) { textTalk_keyPressed(e); } }); this.getContentPane().add(jPanel2, BorderLayout.CENTER); jPanel2.add(jPanel1, BorderLayout.SOUTH); jPanel1.add(buttonSend, BorderLayout.EAST); jPanel1.add(jPanel3, BorderLayout.CENTER); jPanel3.add(textTalk, BorderLayout.CENTER); jPanel2.add(jPanel4, BorderLayout.CENTER); jPanel4.add(jScrollPane1, BorderLayout.CENTER); jScrollPane1.getViewport().add(textMessages, null); } /**Get Applet information*/ public String getAppletInfo() { return "Applet Information"; } /**Get parameter info*/ public String[][] getParameterInfo() { return null; } /**Main method*/ public static void main(String[] args) { ChatApplet applet = new ChatApplet(); applet.isStandalone = true; JFrame frame = new JFrame(); //EXIT_ON_CLOSE == 3 frame.setDefaultCloseOperation(3); frame.setTitle("Applet Frame"); frame.getContentPane().add(applet, BorderLayout.CENTER); applet.init(); applet.start(); frame.setSize(400,320); Dimension d = Toolkit.getDefaultToolkit().getScreenSize(); frame.setLocation((d.width - frame.getSize().width) / 2, (d.height - frame.getSize().height) / 2); frame.setVisible(true); } //static initializer for setting look & feel static { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); //UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName()); } catch(Exception e) { } } public void appendMessage(String message) { textMessages.setText(message + textMessages.getText()); } void buttonSend_actionPerformed(ActionEvent e) { String msg; msg = textTalk.getText().trim(); if (msg.equals("") || msg == null) return; out.println(textTalk.getText()); textTalk.setText(""); } void textTalk_keyPressed(KeyEvent e) { if (e.getKeyChar() != '\n') return; out.println(textTalk.getText()); textTalk.setText(""); } }