videoplayer和HTML都在其库中包含外部jar文件，它们是jna-3.5.2.jar，platform-3.5.2.jar和vlcj-2.4.1.jar。 视频播放器和HTML页面都在Netbeans的不同项目中，我在两个项目中都包含了上面提到的外部jar文件。
这是videoplayer类的代码。
package Player;
import com.sun.jna.NativeLibrary;
import java.awt.BorderLayout;
import java.awt.Color;
import uk.co.caprica.vlcj.component.EmbeddedMediaPlayerComponent;
import uk.co.caprica.vlcj.runtime.RuntimeUtil;
public class videoplayer extends javax.swing.JApplet{
public EmbeddedMediaPlayerComponent mediaPlayerComponent;
@Override
public void init() {
try{
NativeLibrary.addSearchPath(RuntimeUtil.getLibVlcLibraryName(),"./src");
NativeLibrary.addSearchPath(RuntimeUtil.getPluginsDirectoryName(),"./src");
setBackground(Color.RED);
setSize(500,500);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent();
}
catch(Exception e){
System.out.println(e);
}
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(videoplayer.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(videoplayer.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(videoplayer.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(videoplayer.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the applet */
try {
java.awt.EventQueue.invokeAndWait(new Runnable() {
public void run() {
initComponents();
// JApplet jp=new JApplet();
//jp.setLocation(100,100);
//jp.setSize(500,500);
}
});
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* This method is called from within the init() method to initialize the
* form. WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jFrame1 = new javax.swing.JFrame();
jFrame2 = new javax.swing.JFrame();
jToolBar1 = new javax.swing.JToolBar();
videopanel = new javax.swing.JPanel();
lowerpanel = new javax.swing.JPanel();
Play = new javax.swing.JButton();
Pause = new javax.swing.JButton();
Forward = new javax.swing.JButton();
Backward = new javax.swing.JButton();
Snapshot = new javax.swing.JButton();
Volume = new javax.swing.JSlider();
upperpanel = new javax.swing.JPanel();
exitfullscreen = new javax.swing.JButton();
Open = new javax.swing.JButton();
Stop = new javax.swing.JButton();
fullscreen = new javax.swing.JButton();
javax.swing.GroupLayout jFrame1Layout = new javax.swing.GroupLayout(jFrame1.getContentPane());
jFrame1.getContentPane().setLayout(jFrame1Layout);
jFrame1Layout.setHorizontalGroup(
jFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 400, Short.MAX_VALUE)
);
jFrame1Layout.setVerticalGroup(
jFrame1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 300, Short.MAX_VALUE)
);
javax.swing.GroupLayout jFrame2Layout = new javax.swing.GroupLayout(jFrame2.getContentPane());
jFrame2.getContentPane().setLayout(jFrame2Layout);
jFrame2Layout.setHorizontalGroup(
jFrame2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 400, Short.MAX_VALUE)
);
jFrame2Layout.setVerticalGroup(
jFrame2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 300, Short.MAX_VALUE)
);
jToolBar1.setRollover(true);
setBackground(new java.awt.Color(51, 51, 51));
addPropertyChangeListener(new java.beans.PropertyChangeListener() {
public void propertyChange(java.beans.PropertyChangeEvent evt) {
formPropertyChange(evt);
}
});
videopanel.setBackground(new java.awt.Color(51, 51, 51));
lowerpanel.setBackground(new java.awt.Color(0, 0, 0));
Play.setBackground(new java.awt.Color(0, 0, 0));
Play.setForeground(new java.awt.Color(255, 0, 0));
Play.setText("Play");
Play.setToolTipText("");
Play.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
PlayActionPerformed(evt);
}
});
Pause.setBackground(new java.awt.Color(0, 0, 0));
Pause.setForeground(new java.awt.Color(255, 0, 0));
Pause.setText("Pause");
Pause.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
PauseActionPerformed(evt);
}
});
Forward.setBackground(new java.awt.Color(0, 0, 0));
Forward.setForeground(new java.awt.Color(255, 0, 0));
Forward.setText("Fwd");
Forward.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
ForwardActionPerformed(evt);
}
});
Backward.setBackground(new java.awt.Color(0, 0, 0));
Backward.setForeground(new java.awt.Color(255, 0, 0));
Backward.setText("Bwd");
Backward.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BackwardActionPerformed(evt);
}
});
Snapshot.setBackground(new java.awt.Color(0, 0, 0));
Snapshot.setForeground(new java.awt.Color(255, 0, 0));
Snapshot.setText("Snapshot");
Snapshot.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
SnapshotActionPerformed(evt);
}
});
Volume.setBackground(new java.awt.Color(0, 0, 0));
Volume.setForeground(new java.awt.Color(255, 51, 0));
Volume.setMajorTickSpacing(2);
Volume.setMaximum(200);
Volume.setMinorTickSpacing(1);
Volume.addChangeListener(new javax.swing.event.ChangeListener() {
public void stateChanged(javax.swing.event.ChangeEvent evt) {
VolumeStateChanged(evt);
}
});
javax.swing.GroupLayout lowerpanelLayout = new javax.swing.GroupLayout(lowerpanel);
lowerpanel.setLayout(lowerpanelLayout);
lowerpanelLayout.setHorizontalGroup(
lowerpanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(lowerpanelLayout.createSequentialGroup()
.addComponent(Play, javax.swing.GroupLayout.PREFERRED_SIZE, 53, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(Pause)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(Forward)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(Backward)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(Snapshot)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(Volume, javax.swing.GroupLayout.PREFERRED_SIZE, 96, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(308, Short.MAX_VALUE))
);
lowerpanelLayout.setVerticalGroup(
lowerpanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(lowerpanelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(lowerpanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(Volume, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(lowerpanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(Play)
.addComponent(Pause)
.addComponent(Forward)
.addComponent(Backward)
.addComponent(Snapshot)))
.addContainerGap(14, Short.MAX_VALUE))
);
upperpanel.setBackground(new java.awt.Color(0, 0, 0));
upperpanel.setForeground(new java.awt.Color(255, 255, 255));
exitfullscreen.setBackground(new java.awt.Color(0, 0, 0));
exitfullscreen.setForeground(new java.awt.Color(255, 0, 0));
exitfullscreen.setText("Exit Full Screen");
exitfullscreen.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
exitfullscreenActionPerformed(evt);
}
});
javax.swing.GroupLayout upperpanelLayout = new javax.swing.GroupLayout(upperpanel);
upperpanel.setLayout(upperpanelLayout);
upperpanelLayout.setHorizontalGroup(
upperpanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, upperpanelLayout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(exitfullscreen)
.addContainerGap())
);
upperpanelLayout.setVerticalGroup(
upperpanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, upperpanelLayout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addComponent(exitfullscreen))
);
Open.setBackground(new java.awt.Color(0, 0, 0));
Open.setForeground(new java.awt.Color(255, 0, 0));
Open.setText("Open");
Open.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
OpenActionPerformed(evt);
}
});
Stop.setBackground(new java.awt.Color(0, 0, 0));
Stop.setForeground(new java.awt.Color(255, 0, 0));
Stop.setText("Stop");
Stop.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
StopActionPerformed(evt);
}
});
fullscreen.setBackground(new java.awt.Color(0, 0, 0));
fullscreen.setForeground(new java.awt.Color(255, 0, 0));
fullscreen.setText("Full Screen");
fullscreen.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
fullscreenActionPerformed(evt);
}
});
javax.swing.GroupLayout videopanelLayout = new javax.swing.GroupLayout(videopanel);
videopanel.setLayout(videopanelLayout);
videopanelLayout.setHorizontalGroup(
videopanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(lowerpanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(videopanelLayout.createSequentialGroup()
.addGap(2, 2, 2)
.addComponent(Open)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(Stop, javax.swing.GroupLayout.PREFERRED_SIZE, 63, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(14, 14, 14)
.addComponent(fullscreen)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(upperpanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
videopanelLayout.setVerticalGroup(
videopanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, videopanelLayout.createSequentialGroup()
.addGroup(videopanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(upperpanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(videopanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(Open)
.addComponent(Stop)
.addComponent(fullscreen)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 439, Short.MAX_VALUE)
.addComponent(lowerpanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(videopanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(videopanel, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
);
}// </editor-fold>
private void OpenActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
try{
BorderLayout blmain=new BorderLayout();
BorderLayout blvideo=new BorderLayout();
setLayout(blmain);
videopanel.setLayout(blvideo);
videopanel.add(mediaPlayerComponent,blmain.CENTER);
videopanel.add(upperpanel,blmain.NORTH);
videopanel.add(lowerpanel,blmain.SOUTH);
videopanel.validate();
mediaPlayerComponent.getMediaPlayer().prepareMedia(".\\src\\abc.mp4");
mediaPlayerComponent.getMediaPlayer().setVolume(50);
}
catch(Exception e){
System.out.println(e);
}
}
private void PlayActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
mediaPlayerComponent.getMediaPlayer().play();
}
private void PauseActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
mediaPlayerComponent.getMediaPlayer().pause();
}
private void ForwardActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
mediaPlayerComponent.getMediaPlayer().skip(10000);
}
private void BackwardActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
mediaPlayerComponent.getMediaPlayer().skip(-10000);
}
private void SnapshotActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
mediaPlayerComponent.getMediaPlayer().setSnapshotDirectory("D:\\");
mediaPlayerComponent.getMediaPlayer().saveSnapshot();
}
private void VolumeStateChanged(javax.swing.event.ChangeEvent evt) {
// TODO add your handling code here:
mediaPlayerComponent.getMediaPlayer().setVolume(Volume.getValue());
}
private void fullscreenActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
videopanel.setSize(1366,650);
setSize(videopanel.getSize());
videopanel.revalidate();
upperpanel.revalidate();
lowerpanel.revalidate();
}
private void StopActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
mediaPlayerComponent.getMediaPlayer().stop();
videopanel.remove(mediaPlayerComponent);
}
private void formPropertyChange(java.beans.PropertyChangeEvent evt) {
// TODO add your handling code here:
}
private void exitfullscreenActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
setSize(500,500);
videopanel.setSize(500,500);
}
/* */
// Variables declaration - do not modify
private javax.swing.JButton Backward;
private javax.swing.JButton Forward;
private javax.swing.JButton Open;
private javax.swing.JButton Pause;
private javax.swing.JButton Play;
private javax.swing.JButton Snapshot;
private javax.swing.JButton Stop;
private javax.swing.JSlider Volume;
private javax.swing.JButton exitfullscreen;
private javax.swing.JButton fullscreen;
private javax.swing.JFrame jFrame1;
private javax.swing.JFrame jFrame2;
private javax.swing.JToolBar jToolBar1;
private javax.swing.JPanel lowerpanel;
private javax.swing.JPanel upperpanel;
private javax.swing.JPanel videopanel;
// End of variables declaration
}
HTML页面的代码
<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<applet code ="Player.videoplayer" archive="VLCMediaPlayer.jar" height="500" width ="500"></applet>
</body>
</html>
当我单独运行applet时，它工作正常，但是当我在HTML页面上运行它并单击其任何按钮时，我收到以下错误：
线程中的异常＆＃34; AWT-EventQueue-2＆＃34; java.lang.ExceptionInInitializerError
引起：java.security.AccessControlException：访问被拒绝（＆＃34; java.util.PropertyPermission＆＃34;＆＃34; jna.tmpdir＆＃34;＆＃34;阅读＆＃34;）