// Fig. 21.7: MediaTest.java
// A simple media player
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
public class MediaTest
{
// launch the application
public static void main (String args [])
{
// create a file chooser
JFileChooser fileChooser = new JFileChooser ();
// show open file dialog
int result = fileChooser.showOpenDialog (null);
if (result == JFileChooser.APPROVE_OPTION) // user chose a file
{
URL mediaURL = null;
try
{
// get the file as URL
mediaURL = fileChooser.getSelectedFile ().toURL ();
} // end try
catch (MalformedURLException malformedURLException)
{
System.err.println ("Could not create URL for the file");
} // end catch
if (mediaURL != null) // only display if there is a valid URL
{
JFrame mediaTest = new JFrame ("Media Tester");
mediaTest.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
MediaPanel mediaPanel = new MediaPanel (mediaURL);
mediaTest.add (mediaPanel);
mediaTest.setSize (300, 300);
mediaTest.setVisible (true);
} // end inner if
} // end outer if
} // end main
} // end class MediaTest
import java.net.URL;
import javax.media.CannotRealizeException;
import javax.media.Manager;
import javax.media.NoPlayerException;
import javax.media.Player;
import javax.swing.JPanel;
public class MediaPanel extends JPanel
{
public MediaPanel( URL mediaURL )
{
setLayout( new BorderLayout() ); // use a BorderLayout
// Use lightweight components for Swing compatibility
Manager.setHint( Manager.LIGHTWEIGHT_RENDERER, true );
try
{
// create a player to play the media specified in the URL
Player mediaPlayer = Manager.createRealizedPlayer( mediaURL );
// get the components for the video and the playback controls
Component video = mediaPlayer.getVisualComponent();
Component controls = mediaPlayer.getControlPanelComponent();
if ( video != null )
add( video, BorderLayout.CENTER ); // add video component
if ( controls != null )
add( controls, BorderLayout.SOUTH ); // add controls
mediaPlayer.start(); // start playing the media clip
} // end try
catch ( NoPlayerException noPlayerException )
{
System.err.println( "No media player found" );
} // end catch
catch ( CannotRealizeException cannotRealizeException )
{
System.err.println( "Could not realize media player" );
} // end catch
catch ( IOException iOException )
{
System.err.println( "Error reading from the source" );
} // end catch
} // end MediaPanel constructor
} // end class MediaPanel
// create a file chooser JFileChooser fileChooser = new JFileChooser (); // show open file dialog int result = fileChooser.showOpenDialog (null); if (result == JFileChooser.APPROVE_OPTION) // user chose a file
// get the file as URL mediaURL = fileChooser.getSelectedFile ().toURL ();
http://www.myserver.co.za/myfile.zip
file:///c:\foldername\filename.zip
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