socket 实现局域网一对一聊天

//QQ:514280137 package chat; import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*; import java.net.*; public class Client extends JFrame implements ActionListener { JPanel contentPane; JLabel jLabel1 = new JLabel(); JTextField jTextField1 = new JTextField("127.0.0.1"); JLabel jLabel2 = new JLabel(); JTextField jTextField2 = new JTextField("9745"); JButton jButton1 = new JButton(); JLabel jLabel3 = new JLabel(); JTextField jTextField3 = new JTextField(); JButton jButton2 = new JButton(); JScrollPane jScrollPane1 = new JScrollPane(); JTextArea jTextArea1 = new JTextArea(); BufferedReader instr = null; Socket socket = null; PrintWriter os = null; public Client() { jbInit(); } class MyThread extends Thread { public void run() { try { os = new PrintWriter(socket.getOutputStream()); instr = new BufferedReader(new InputStreamReader(socket .getInputStream())); while (true) { this.sleep(100); if (instr.ready()) { jTextArea1.append("对方说: " + instr.readLine() + "\n"); } } } catch (Exception ex) { } } } public void actionPerformed(ActionEvent e) { if (e.getSource() == jButton1) { String ip = jTextField3.getText().trim(); int port = Integer.parseInt(jTextField2.getText().trim()); connectServer(ip, port); } if (e.getSource() == jButton2) { String s = this.jTextField3.getText().trim(); sendData(s); } } private void connectServer(String ip, int port) {// 连接 try { if (jButton1.getText().trim().equals("连接[C]")) { jButton1.setText("连接服务器..."); socket = new Socket(ip, port); jButton1.setText("正在聊天"); jTextArea1.append("------计本06-1.王守坤------\n"); MyThread t = new MyThread(); t.start(); } } catch (Exception ex) { } } private void sendData(String s) {// 发送数据 try { os = new PrintWriter(socket.getOutputStream()); os.println(s); os.flush(); this.jTextArea1.append("自己说：" + s + "\n"); } catch (Exception ex) { } } private void jbInit() { contentPane = (JPanel) this.getContentPane(); jLabel1.setFont(new java.awt.Font("宋体", 0, 14)); jLabel1.setText("服务器名称"); jLabel1.setBounds(new Rectangle(20, 22, 87, 28)); contentPane.setLayout(null); this.setSize(new Dimension(540, 340)); this.setTitle("客户端"); jTextField1.setBounds(new Rectangle(114, 26, 108, 24)); jLabel2.setBounds(new Rectangle(250, 25, 72, 28)); jLabel2.setText("端口号"); jLabel2.setFont(new java.awt.Font("宋体", 0, 14)); jTextField2.setBounds(new Rectangle(320, 27, 108, 24)); jButton1.setBounds(new Rectangle(440, 28, 73, 25)); jButton1.setFont(new java.awt.Font("Dialog", 0, 14)); jButton1.setBorder(BorderFactory.createEtchedBorder()); jButton1.setActionCommand("jButton1"); jButton1.setText("连接[C]"); jButton1.setMnemonic('C'); jLabel3.setBounds(new Rectangle(23, 57, 87, 28)); jLabel3.setText("请输入信息"); jLabel3.setFont(new java.awt.Font("宋体", 0, 14)); jTextField3.setBounds(new Rectangle(114, 60, 314, 24)); jButton2.setText("发送[S]"); jButton2.setMnemonic('S'); jButton2.setActionCommand("jButton1"); jButton2.setBorder(BorderFactory.createEtchedBorder()); jButton2.setFont(new java.awt.Font("Dialog", 0, 14)); jButton2.setBounds(new Rectangle(440, 58, 73, 25)); jScrollPane1.setBounds(new Rectangle(23, 92, 493, 189)); contentPane.add(jLabel1, null); contentPane.add(jTextField1, null); contentPane.add(jLabel2, null); contentPane.add(jTextField2, null); contentPane.add(jButton1, null); contentPane.add(jLabel3, null); contentPane.add(jTextField3, null); contentPane.add(jButton2, null); contentPane.add(jScrollPane1, null); jScrollPane1.getViewport().add(jTextArea1, null); jButton1.addActionListener(this); jButton2.addActionListener(this); this.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { try { socket.close(); instr.close(); os.close(); System.exit(0); } catch (Exception ex) { } } }); } public static void main(String arg[]) { JFrame.setDefaultLookAndFeelDecorated(true); Client frm = new Client(); frm.setVisible(true); } }