Java/JDK 6/Desktop
Содержание
- 1 Desktop Help Applications
- 2 Invoke the default editor to edit a file
- 3 Open a office word file with Java
- 4 Open Mail client
- 5 Send out email
- 6 Using system default printer to print a file out
- 7 Using the Desktop class to launch a URL with default browser
- 8 Using the system default setting to open a file
Desktop Help Applications
<source lang="java">
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.println("Desktop class is not supported"); System.exit(1); } JMenuItem openItem = new JMenuItem("Open"); JMenuItem editItem = new JMenuItem("Edit"); JMenuItem printItem = new JMenuItem("Print"); JMenuItem browseToItem = new JMenuItem("Go to www.jexp.ru"); JMenuItem mailToItem = new JMenuItem("Email to a@java.ru"); JMenu fileMenu = new JMenu("File"); JMenu mailMenu = new JMenu("Email"); JMenu browseMenu = new JMenu("Browser"); openItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { JFileChooser chooser = new JFileChooser(); if (chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) { 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) { 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) { 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("www.jexp.ru"); desktop.browse(browseURI); } catch (Exception ex) { System.out.println(ex.getMessage()); } } }); browseMenu.add(browseToItem); mailToItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { URI mailURI = new URI("mailto:support@java.ru"); desktop.mail(mailURI); } catch (Exception ex) { System.out.println(ex.getMessage()); } } }); mailMenu.add(mailToItem); JMenuBar jMenuBar = new JMenuBar(); jMenuBar.add(fileMenu); jMenuBar.add(browseMenu); jMenuBar.add(mailMenu); JFrame frame = new JFrame(); frame.setTitle("Desktop Helper Applications"); frame.setSize(300, 100); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setJMenuBar(jMenuBar); frame.setVisible(true); }
}
</source>
Invoke the default editor to edit a file
<source lang="java">
import java.awt.Desktop; import java.io.File; import java.io.IOException; public class Test {
public static void main(String[] a) { try { Desktop desktop = null; if (Desktop.isDesktopSupported()) { desktop = Desktop.getDesktop(); } desktop.edit(new File("c:\\a.txt")); } catch (IOException ioe) { ioe.printStackTrace(); } }
}
</source>
Open a office word file with Java
<source lang="java">
import java.awt.Desktop; import java.io.File; import java.io.IOException; public class Test {
public static void main(String[] a) { try { Desktop desktop = null; if (Desktop.isDesktopSupported()) { desktop = Desktop.getDesktop(); } desktop.open(new File("c:\\a.doc")); } catch (IOException ioe) { ioe.printStackTrace(); } }
}
</source>
Open Mail client
<source lang="java">
import java.awt.Desktop; import java.io.IOException; import java.net.URI; public class Test {
public static void main(String[] a)throws Exception { Desktop desktop = null; if (Desktop.isDesktopSupported()) { desktop = Desktop.getDesktop(); } desktop.mail(); }
}
</source>
Send out email
<source lang="java">
import java.awt.Desktop; import java.io.IOException; import java.net.URI; public class Test {
public static void main(String[] a)throws Exception { Desktop desktop = null; if (Desktop.isDesktopSupported()) { desktop = Desktop.getDesktop(); } desktop.mail("mailto", "a@a.net", null); }
}
</source>
Using system default printer to print a file out
<source lang="java">
import java.awt.Desktop; import java.io.File; import java.io.IOException; public class Test {
public static void main(String[] a) { try { Desktop desktop = null; if (Desktop.isDesktopSupported()) { desktop = Desktop.getDesktop(); } desktop.print(new File("c:\\a.txt")); } catch (IOException ioe) { ioe.printStackTrace(); } }
}
</source>
Using the Desktop class to launch a URL with default browser
<source lang="java">
import java.awt.Desktop; import java.io.IOException; import java.net.URI; import java.net.URISyntaxException; public class UsingDesltopClassToLaunch {
public static void main(String[] a) { try { URI uri = new URI("http://www.jexp.ru"); Desktop desktop = null; if (Desktop.isDesktopSupported()) { desktop = Desktop.getDesktop(); } if (desktop != null) desktop.browse(uri); } catch (IOException ioe) { ioe.printStackTrace(); } catch (URISyntaxException use) { use.printStackTrace(); } }
}
</source>
Using the system default setting to open a file
<source lang="java">
import java.awt.Desktop; import java.io.File; import java.io.IOException; public class Test {
public static void main(String[] a) { try { Desktop desktop = null; if (Desktop.isDesktopSupported()) { desktop = Desktop.getDesktop(); } desktop.open(new File("c:\\a.txt")); } catch (IOException ioe) { ioe.printStackTrace(); } }
}
</source>