Javax Media Player-the Play

Question

试图将.mp4视频嵌入jpanel。 jpanel将加载和执行，但视频不会。尝试{}会引发错误，但不确定为什么尝试{}会抛出错误。从另一个来源复制此代码，但不会编译。

import java.awt.BorderLayout;    
import java.awt.Component;    
import java.io.File;    
import java.net.MalformedURLException;    
import java.net.URL;    
import javax.media.Manager;    
import javax.media.MediaLocator;    
import javax.media.Player;    
import javax.swing.JFrame;    
import javax.swing.JPanel;    
public class Main extends JPanel 
{    

    public static void main(String[] args) 
    {

        URL mediaUrl=null;    
        File file = new File("Mortal Combat Video.mp4");     
        System.out.println(file);
        try 
        {    
            mediaUrl = file.toURL(); 
        } 
        catch (MalformedURLException ex) 
        {
            System.out.println(ex);    
        }
    
        JFrame mediaTest = new JFrame( "Movie Player" );    
        mediaTest.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );    
        MediaPlayer mediaPanel = new MediaPlayer( mediaUrl );
        System.out.println(mediaPanel);
        mediaTest.add( mediaPanel );
        
        mediaTest.setSize( 800, 700 ); // set the size of the player    
        mediaTest.setLocationRelativeTo(null);    
        mediaTest.setVisible( true );
    }    
}

import java.awt.BorderLayout;    
import java.awt.Component;    
import java.io.File;    
import java.net.MalformedURLException;    
import java.net.URL;    
import javax.media.Manager;    
import javax.media.MediaLocator;    
import javax.media.Player;    
import javax.swing.JFrame;    
import javax.swing.JPanel;    
public class MediaPlayer extends JPanel {    
public MediaPlayer(URL mediauUrl) {

setLayout(new BorderLayout());    

    Player mediaPlayer = null;
    Component video = null;
    
    Component control = null;
try 
    {

        mediaPlayer=Manager.createRealizedPlayer(new MediaLocator(mediauUrl));          
        video=mediaPlayer.getVisualComponent(); 
        control=mediaPlayer.getControlPanelComponent();
        System.out.println("here3");
        if (video == null)
            System.out.println("video");
        else
        {
            System.out.println("video2");
            add(video, BorderLayout.CENTER); // place the video component in the panel    
        }
        
        add(control, BorderLayout.SOUTH); // place the control in panel    
        mediaPlayer.start();    
    } 
    catch (Exception e) 
    {    
        System.out.println("error");
    }    
}
}

捕获{}打印“错误”，但不确定为什么尝试{}代码不会编译。任何建议将不胜感激。

视频播放，控制功能，它现在正在运行，但视频本身并不可见（音频播放）。 这是屏幕截图：