videoplayer1.java

在基于java的程序里实现视频播放

package Longin;

import java.awt.*;
import java.awt.event.*;
import java.awt.event.ActionEvent;

import javax.media.*;
import javax.media.Player;

import javax.swing.JButton;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JToolBar;

public class VideoPlayer1 extends Frame implements ControllerListener
{
	private Player player;
	private Panel panel;
	Component visual, control;
    
   
    
    private JToolBar jToolBar1 = new JToolBar();
    private JButton jButton2 = new JButton();
    private JButton jButton3 = new JButton();
    private JButton jButton4 = new JButton();

    public static void main(String[] args)
	{
		
                VideoPlayer1 Medialist = new VideoPlayer1();
		Medialist.nextMedia();
                
	}
 
 
	public VideoPlayer1()
	{
 
		addWindowListener(new WindowAdapter()
		{
			public void windowClosing(WindowEvent e)
			{
				if (player!=null) player.close();
				System.exit(0);
			}});
 
 
		setTitle("Player");
		panel=new Panel();
		panel.setLayout(new BorderLayout());
		add( panel,"Center");
		setVisible(true);
        try {
            jbInit();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
 
	public void nextMedia()
	{
             try
		{
		    FileDialog fd = 
		      new FileDialog(this, "Select File", FileDialog.LOAD);
		      fd.show();
		      String filename = fd.getDirectory() + fd.getFile();
		      player = Manager.createPlayer
		            (new MediaLocator("file:///" + filename));
                        
                        player.addControllerListener(this);
		        setTitle(filename);
 
		}
		catch(Exception x) { x.printStackTrace(); }
        }
 
	public void controllerUpdate(ControllerEvent ce)
	{
   
		if (ce instanceof RealizeCompleteEvent)
		{
   
			panel.removeAll();
   
			//int videoWidth=320, videoHeight=200, controlHeight=30;
 
			if ((visual=player.getVisualComponent())!=null)
			{
				Dimension size=visual.getPreferredSize();
				//videoWidth=size.width;
				//videoHeight=size.height;
   
				panel.add( "Center", visual);
 
			}
			else 
			{
				panel.setVisible(false);
			}
			if ((control=player.getControlPanelComponent())!=null)
			{
				//controlHeight=control.getPreferredSize().height;
				panel.add("South", control);
 
			}
			setSize(1024,745);
		    //this.setSize(new Dimension(1024, 800));
                        validate();
 
		}
		else if(ce instanceof EndOfMediaEvent)  
			nextMedia();
		}

    private void jbInit() throws Exception {

        this.setSize(new Dimension(1024, 800));
       // this.getContentPane().setLayout( null );
        jButton2.setText("打开");
        jButton2.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        jButton2_actionPerformed(e);
                    }
                });
        jButton3.setText("播放");
        jButton3.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        jButton3_actionPerformed(e);
                    }
                });
        jButton4.setText("退出");
        jButton4.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        jButton4_actionPerformed(e);
                    }
                });
        jToolBar1.add(jButton2, null);
        jToolBar1.add(jButton3, null);
        jToolBar1.add(jButton4, null);
        this.add(jToolBar1, BorderLayout.NORTH);
        
    }

   private void jButton2_actionPerformed(ActionEvent e) {
        this.nextMedia();
    }

    private void jButton4_actionPerformed(ActionEvent e) {
       this.dispose();
       // player. 
    }

    private void jButton3_actionPerformed(ActionEvent e) {
        player.start();
    }
}


//}