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);
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO 自动生成方法存根
new testEditPane();
}
}