6. 39. 8. Desktop初探 Help Applications

import java.awt.Desktop; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.net.URI; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; public class DesktopDemo { static Desktop desktop; public static void main(String[] args) { if(Desktop.isDesktopSupported()){ desktop = Desktop.getDesktop(); }else{ System.out.print("This OS isnot supported"); System.exit(1); } JMenuItem openItem = new JMenuItem("打开"); JMenuItem editItem = new JMenuItem("编辑"); JMenuItem printItem = new JMenuItem("打印"); JMenuItem browseToItem = new JMenuItem("Goto blog.csdn.com/youyigong"); JMenuItem mailToItem = new JMenuItem("Emil to me"); JMenu fileMenu = new JMenu("文件"); JMenu mailMenu = new JMenu("邮件"); JMenu browseMenu = new JMenu("Browse"); openItem.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { JFileChooser chooser = new JFileChooser(); if(chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION){//approve:批准认可 try{ desktop.open(chooser.getSelectedFile().getAbsoluteFile()); }catch(Exception ex){ ex.printStackTrace(); } } } }); fileMenu.add(openItem); editItem.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { JFileChooser chooser = new JFileChooser(); if(chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION){//approve:批准认可 try{ desktop.edit(chooser.getSelectedFile().getAbsoluteFile()); }catch(Exception ex){ ex.printStackTrace(); } } } }); fileMenu.add(editItem); printItem.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { JFileChooser chooser = new JFileChooser(); if(chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION){//approve:批准认可 try{ desktop.print(chooser.getSelectedFile().getAbsoluteFile()); }catch(Exception ex){ ex.printStackTrace(); } } } }); fileMenu.add(printItem); browseToItem.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { try{ URI browseURI = new URI("http://blog.csdn.com/youyigong"); desktop.browse(browseURI); }catch(Exception ex){ ex.printStackTrace(); } } }); browseMenu.add(browseToItem); mailToItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { URI mailURI = new URI("mailto:support@java.com"); desktop.mail(mailURI); } catch (Exception ex) { System.out.println(ex.getMessage()); } } }); mailMenu.add(mailToItem); JMenuBar jMenuBar = new JMenuBar(); jMenuBar.add(fileMenu); jMenuBar.add(mailMenu); jMenuBar.add(browseMenu); JFrame frame = new JFrame(); frame.setTitle("Desktop Helper Applications"); frame.setJMenuBar(jMenuBar); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(300,100); frame.setVisible(true); } }