frame1.java~58~

Jbuilder100个例子 都是经典例子 对大家学习Jbuilder非常有帮助

package chatserver;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.*;
import java.io.*;

public class Frame1 extends JFrame implements Runnable {
  JPanel contentPane;
  BorderLayout borderLayout1 = new BorderLayout();
  TextArea textArea1 = new TextArea();
  Panel panel1 = new Panel();
  TextField textField1 = new TextField();
  Button send = new Button();
  Button quit = new Button();
  ServerSocket serverSocket = null;
  Socket socket = null;
  BufferedReader cin = null;
  PrintWriter cout = null;


  /**Construct the frame*/
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setResizable(false);
    this.setSize(new Dimension(372, 284));
    this.setTitle("聊天程序－－服务器端");
    textField1.setColumns(15);
    send.setEnabled(false);
    send.setLabel("发送");
    send.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        send_actionPerformed(e);
      }
    });
    quit.setLabel("退出");
    quit.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        quit_actionPerformed(e);
      }
    });
    textArea1.setEditable(false);
    contentPane.add(textArea1,  BorderLayout.CENTER);
    contentPane.add(panel1, BorderLayout.SOUTH);
    panel1.add(textField1, null);
    panel1.add(send, null);
    panel1.add(quit, null);
    Thread thread = new Thread(this);
    thread.start();
  }
  /**Overridden so we can exit when window is closed*/
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      quit();
//      System.exit(0);
    }
  }
  public void run() {
    try{
      serverSocket = new ServerSocket(1124);
      socket = serverSocket.accept();
      cin = new BufferedReader (new InputStreamReader(socket.getInputStream()));
      cout = new PrintWriter(socket.getOutputStream());
      if (socket!= null){
        textArea1.append("系统消息：客户端成功接入！\n");
        send.setEnabled(true);
      }
      Receiver r = new Receiver();
      Thread t = new Thread(r);
      t.start();
    }catch(Exception e){
      textArea1.append(e.toString()+"\n");
    }
  }

  void quit_actionPerformed(ActionEvent e) {
      quit();
//      System.exit(0);
  }

  void send_actionPerformed(ActionEvent e) {
    cout.println(textField1.getText());
    cout.flush();
    textArea1.append("Sever:"+textField1.getText()+"\n");
    textField1.setText("");
  }

  void quit(){
    try{
    cout.println("ServerExits!");
    cout.flush();
    }catch(Exception e){
//    textArea1.append(e.toString());
    }
    finally{
      System.exit(0);
    }
  }

  private class Receiver implements Runnable{
    public void run(){
      String msg = null;
      try{
        msg = cin.readLine();
        while(msg!= "ClientExits!"){
          textArea1.append("Client:"+msg+"\n");
          msg = cin.readLine();
        }
        cin.close();
        cout.close();
        socket.close();
        serverSocket.close();
        send.setEnabled(false);    //客户端已退出，禁止发送消息
      }catch(Exception e){
         textArea1.append(e.toString()+"\n");
       }
    }
  }
}