我遵循了一些关于将JavaFX与Swing(JFrame)结合起来播放视频的教程,但是我得到的只是一个黑屏,其中视频应该没有任何实际内容播放,也没有报告错误.
我在这里做错了什么,为什么视频不播放?
我尝试了几个.flv视频,其中没有一个会开始播放(当我在浏览器中打开它们时它们会播放)
我在安装了K-lite完整编解码器包的Windows 8.1 N Pro上运行jre7和jdk1.7.0_45
编辑:更新我的代码后jewelsea的评论,没有任何改变,黑匣子仍然出现没有内容播放,控制台没有显示任何文字出现
package com.example.test;
import javafx.application.Platform;
import javafx.embed.swing.JFXPanel;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.SceneBuilder;
import javafx.scene.media.Media;
import javafx.scene.media.MediaErrorEvent;
import javafx.scene.media.MediaPlayer;
import javafx.scene.media.MediaView;
import javafx.scene.paint.Color;
import javax.swing.*;
public class Main {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
initAndShowGUI();
}
});
}
private static void initAndShowGUI() {
// This method is invoked on the EDT thread
JFrame frame = new JFrame("Test");
final JFXPanel fxPanel = new JFXPanel();
frame.add(fxPanel);
frame.setSize(640, 480);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Platform.runLater(new Runnable() {
@Override
public void run() {
initFX(fxPanel);
}
});
}
private static void initFX(JFXPanel fxPanel) {
// This method is invoked on the JavaFX thread
Scene scene = createScene();
fxPanel.setScene(scene);
}
private static Scene createScene() {
String source;
Media media;
MediaPlayer mediaPlayer;
MediaView mediaView = null;
try {
media = new Media("http://download.oracle.com/otndocs/products/javafx/oow2010-2.flv");
if (media.getError() == null) {
media.setOnError(new Runnable() {
public void run() {
// Handle asynchronous error in Media object.
System.out.println("Handle asynchronous error in Media object");
}
});
try {
mediaPlayer = new MediaPlayer(media);
mediaPlayer.setAutoPlay(true);
if (mediaPlayer.getError() == null) {
mediaPlayer.setOnError(new Runnable() {
public void run() {
// Handle asynchronous error in MediaPlayer object.
System.out.println("Handle asynchronous error in MediaPlayer object");
}
});
mediaView = new MediaView(mediaPlayer);
mediaView.setOnError(new EventHandler() {
public void handle(MediaErrorEvent t) {
// Handle asynchronous error in MediaView.
System.out.println("Handle asynchronous error in MediaView: "+ t.getMediaError());
}
@Override
public void handle(Event arg0) {
// TODO Auto-generated method stub
System.out.println("Handle asynchronous error in MediaView arg0: "+arg0.toString());
}
});
} else {
// Handle synchronous error creating MediaPlayer.
System.out.println("Handle synchronous error creating MediaPlayer");
}
} catch (Exception mediaPlayerException) {
// Handle exception in MediaPlayer constructor.
System.out.println("Handle exception in MediaPlayer constructor: "+ mediaPlayerException.getMessage());
}
} else {
// Handle synchronous error creating Media.
System.out.println("Handle synchronous error creating Media");
}
} catch (Exception mediaException) {
// Handle exception in Media constructor.
System.out.println("Handle exception in Media constructor: "+mediaException.getMessage());
}
Group root = new Group();
Scene scene = SceneBuilder.create().width(640).height(480).root(root).fill(Color.WHITE).build();
if(mediaView != null) {
root.getChildren().add(mediaView);
}
return scene;
}
}
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因此,我安装了 Windows Media 功能包以使 adobe Premiere Pro 正常工作(因为它需要 Windows Media Player 中的 dll 文件(我没有安装,因为我运行的是 N 版本的 Windows),现在视频确实可以播放为我。
我不能100%确认原因是没有安装WMP,因为媒体功能包可能还安装了其他东西来解决我的问题,尽管如此,问题已经解决了:)
我要感谢其他答案的尝试,我真的很感激。