frame1.java

很好得jbuilder100例源代码

package chatclient;

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 link = new Button();
  Button quit = new Button();
  Socket socket = null;
  BufferedReader sin =null;
  PrintWriter sout =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(392, 221));
    this.setTitle("聊天程序－－客户端");
    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);
      }
    });
    link.setLabel("连接");
    link.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        link_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(link, null);
    panel1.add(quit, null);
  }
  /**Overridden so we can exit when window is closed*/
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      quit();
    }
  }
  public void run() {
    try{
      socket = new Socket("LocalHost",1124);
      sin = new BufferedReader(new  InputStreamReader(socket.getInputStream()));
      sout = new PrintWriter(socket.getOutputStream());
      send.setEnabled(true);
      Receiver r = new Receiver();
      Thread t = new Thread(r);
      t.start();
      textArea1.append("系统消息：成功连接到服务器！\n");
      link.setEnabled(false);
    }catch(Exception e){
      textArea1.append(e.toString()+"\n");
    }
  }

  void link_actionPerformed(ActionEvent e) {
    Thread thread = new Thread(this);
    thread.start();
  }

  void send_actionPerformed(ActionEvent e) {
    sout.println(textField1.getText());
    sout.flush();
    textArea1.append("客户端消息:"+textField1.getText()+"\n");
    textField1.setText("");
  }

  void quit(){
    try{
    sout.println("ClientExits!");
    sout.flush();
    }catch(Exception e){}
    finally{
      System.exit(0);
    }
  }

  private class Receiver implements Runnable{
    public void run(){
      String msg = null;
      try{
        msg = sin.readLine();
        while(msg!="ServerExits!"){
          textArea1.append("服务器消息:"+msg+"\n");
          msg = sin.readLine();
        }
        sin.close();
        sout.close();
        socket.close();
      }catch(Exception e){}
      send.setEnabled(false);    //服务器端已退出，禁止发送消息
    }
  }

  void quit_actionPerformed(ActionEvent e) {
    quit();
  }
}