frame1.java

很好得jbuilder100例源代码

package getmyip;

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

public class Frame1 extends JFrame {
  JPanel contentPane;
  FlowLayout flowLayout1 = new FlowLayout();
  Button button1 = new Button();
  Label label1 = new Label();
  TextField textField1 = new TextField();

  /**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();
    button1.setLabel("获取");
    button1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        button1_actionPerformed(e);
      }
    });
    contentPane.setLayout(flowLayout1);
    this.setResizable(false);
    this.setSize(new Dimension(281, 168));
    this.setTitle("得到本机IP地址");
    label1.setFont(new java.awt.Font("Dialog", 0, 32));
    label1.setText("本机的IP地址是：");
    textField1.setColumns(15);
    textField1.setEditable(false);
    textField1.setFont(new java.awt.Font("Dialog", 1, 20));
    contentPane.add(button1, null);
    contentPane.add(label1, null);
    contentPane.add(textField1, null);
  }
  /**Overridden so we can exit when window is closed*/
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  void button1_actionPerformed(ActionEvent e) {
       try{
        InetAddress localHost = InetAddress.getLocalHost();
        String ipAdd = localHost.getHostAddress();
        textField1.setText(ipAdd);
      }catch(Exception ex){
          textField1.setText("Error");
        }
  }
}