Java 浏览器JEditorPane的使用

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div id=”content” contentScore=”3395″>Java 浏览器JEditorPane的使用

import    java.awt.;   
import    javax.swing.;
import java.awt.event.;
import    java.io.;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
public class testEditPane extends JFrame{     
JEditorPane    editorPane;
JLabel label;
JTextField url;
File    file;
String str;
JButton btn;
         public testEditPane()
         {
        this.setTitle(“Java 浏览器”);
        editorPane=new JEditorPane();
        label=new JLabel(“URL”);
        editorPane.setContentType(“text/html”);
        url=new JTextField(30);
        url.addKeyListener(new KeyListener() {

     public void keyPressed(KeyEvent e) {
      // TODO 自动生成方法存根
      if(e.getKeyChar()==’\n’)
      {
       if(url.getText().startsWith(“http://”))
       {
       try
           {
           editorPane.setPage(url.getText());
           editorPane.setEditable(false);
           }catch(Exception em)
           {
              em.printStackTrace();
           }
      }
       else {
        url.setText(“您输入的网址不正确！”);
      }
    
      }
     }

     public void keyReleased(KeyEvent arg0) {
      // TODO 自动生成方法存根
    
     }

     public void keyTyped(KeyEvent arg0) {
      // TODO 自动生成方法存根
    
     }});
        btn=new JButton(“Go”);
        btn.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent e) {
      // TODO 自动生成方法存根
      try
          {
          editorPane.setPage(url.getText());
          editorPane.setEditable(false);
          }catch(Exception em)
          {
             em.printStackTrace();
          }
     }});
        JPanel pnl=new JPanel();
        pnl.add(label,BorderLayout.WEST);
        pnl.add(url,BorderLayout.CENTER);
        pnl.add(btn,BorderLayout.EAST);
        this.getContentPane().add(pnl,BorderLayout.NORTH);
        editorPane.addHyperlinkListener(new HyperlinkListener() {

     public void hyperlinkUpdate(HyperlinkEvent e) {
      // TODO 自动生成方法存根
      try {
               if ( e.getEventType() == HyperlinkEvent.EventType.ACTIVATED
               )
               editorPane.setPage(e.getURL());
           } catch (Exception ex) {
               ex.printStackTrace(System.err);
     }
     }
        });
        this.setSize(500,500);
        JScrollPane scrollPane=new JScrollPane();
        scrollPane.setViewportView(editorPane);
        this.getContentPane().add(scrollPane,BorderLayout.CENTER);
             this.addWindowListener(new WindowAdapter()    {       
       public    void    windowClosing(WindowEvent    e)    {     
        System.exit(0); }});
        this.setVisible(true);
         }
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