frame1.java~4~

本程序是运用java 语言 编写一款查看 网站源文件的程序

package seehtml;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;
import java.io.*;
import java.net.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Frame1 extends JFrame {
  JPanel contentPane;
  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JLabel jLabel4 = new JLabel();
  JLabel jLabel5 = new JLabel();
  JLabel jLabel6 = new JLabel();
  JScrollPane jScrollPane1 = new JScrollPane();
  JTextArea jTextArea1 = new JTextArea();

  //Construct the frame
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    jLabel1.setText("请输入网址：");
    contentPane.setLayout(xYLayout1);
    this.setSize(new Dimension(537, 455));
    this.setTitle("Frame Title");
    jTextField1.setText("http://");
    jTextField1.addActionListener(new Frame1_jTextField1_actionAdapter(this));
    jLabel2.setText("网络协议：");
    jLabel3.setText("网络主机名：");
    jLabel4.setText("文件名：");
    jLabel5.setText("端口：");
    jLabel6.setText("源文件：");
    jTextArea1.setText("");
    jScrollPane1.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    contentPane.add(jTextField1,  new XYConstraints(198, 16, 233, 32));
    contentPane.add(jLabel1, new XYConstraints(55, 18, 91, 31));
    contentPane.add(jLabel2,    new XYConstraints(60, 80, 370, 30));
    contentPane.add(jLabel4,  new XYConstraints(60, 140, 370, 30));
    contentPane.add(jLabel3,  new XYConstraints(60, 110, 370, 30));
    contentPane.add(jLabel5,   new XYConstraints(60, 170, 370, 30));
    contentPane.add(jLabel6, new XYConstraints(59, 198, 134, 26));
    contentPane.add(jScrollPane1,  new XYConstraints(57, 227, 454, 217));
    jScrollPane1.getViewport().add(jTextArea1, 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 jTextField1_actionPerformed(ActionEvent e) {

    try{
    URL myurl=new URL(jTextField1.getText());
    jLabel2.setText("输入的URL协议: "+myurl.getProtocol());
    jLabel3.setText("URL主机: "+myurl.getHost());
    jLabel4.setText("URL文件名: "+myurl.getFile());
    jLabel5.setText("URL断口: "+myurl.getPort());
        }
        catch (MalformedURLException ex)
 {ex.printStackTrace();}

    try{

                  StringBuffer buf=new StringBuffer();
                  URL myurl=new URL(jTextField1.getText());
                  URLConnection uc=myurl.openConnection();
                  InputStream raw=uc.getInputStream();
                  InputStream buffer=new BufferedInputStream(raw);
                  Reader r=new InputStreamReader(buffer);
                  int c;
                  while((c=r.read())!=-1){
                    buf.append((char)c);
                  }
                  jTextArea1.append(buf.toString());
            }
                catch(IOException ex){ex.printStackTrace();}

  }
}

class Frame1_jTextField1_actionAdapter implements java.awt.event.ActionListener {
  Frame1 adaptee;

  Frame1_jTextField1_actionAdapter(Frame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jTextField1_actionPerformed(e);
  }
}