javaGUI编程基础源码

//类似于一个简单的浏览器 import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.net.*; import java.io.*; import javax.swing.event.*; @SuppressWarnings("serial") class Win3 extends JFrame implements ActionListener,Runnable { JButton button; URL url; JTextField text; JEditorPane editPane; byte b[]=new byte[118]; Thread thread; public Win3() { text=new JTextField(20); editPane=new JEditorPane(); editPane.setEditable(false); button=new JButton("确定"); button.addActionListener(this); thread=new Thread(this); JPanel p=new JPanel(); p.add(new JLabel("输入网址:")); p.add(text); p.add(button); Container con=getContentPane(); con.add(new JScrollPane(editPane),BorderLayout.CENTER); con.add(p,BorderLayout.NORTH); setBounds(60,60,400,300); setVisible(true); validate(); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); editPane.addHyperlinkListener(new HyperlinkListener() { public void hyperlinkUpdate(HyperlinkEvent e) { if(e.getEventType()== HyperlinkEvent.EventType.ACTIVATED) { try{ editPane.setPage(e.getURL()); } catch(IOException e1) { editPane.setText(""+e1); } } } } ); } public void actionPerformed(ActionEvent e) { if(!(thread.isAlive())) thread=new Thread(this); try{ thread.start(); } catch(Exception ee) { text.setText("我正在读取"+url); } } public void run() { try { int n=-1; editPane.setText(null); url=new URL(text.getText().trim()); editPane.setPage(url); } catch(MalformedURLException e1) { text.setText(""+e1); return; } catch(IOException e1) { text.setText(""+e1); return; } } } public class Example3 { public static void main(String args[]) { new Win3(); } }