java能不能播放mp4_如何在Java Swing应用程序中播放MP4视频

Java可以播放MP4视频。在Java Swing应用程序中播放MP4视频，可以使用JavaFX媒体库。以下是播放MP4视频的示例代码：

import javafx.application.Platform;
import javafx.embed.swing.JFXPanel;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;

import javax.swing.*;
import java.awt.*;
import java.io.File;

public class Mp4Player extends JFrame {
    private static final long serialVersionUID = 1L;
    private JPanel jContentPane = null;
    private JFXPanel jfxPanel = null;
    private MediaPlayer mediaPlayer = null;

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                Mp4Player thisClass = new Mp4Player();
                thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                thisClass.setVisible(true);
            }
        });
    }

    public Mp4Player() {
        super();
        initialize();
    }

    private void initialize() {
        this.setSize(300, 200);
        this.setContentPane(getJContentPane());
        this.setTitle("MP4 Player");
    }

    private JPanel getJContentPane() {
        if (jContentPane == null) {
            jContentPane = new JPanel();
            jContentPane.setLayout(new BorderLayout());
            jContentPane.add(getJFXPanel(), BorderLayout.CENTER);
        }
        return jContentPane;
    }

    private JFXPanel getJFXPanel() {
        if (jfxPanel == null) {
            jfxPanel = new JFXPanel();
            Platform.runLater(new Runnable() {
                public void run() {
                    File file = new File("video.mp4");
                    Media media = new Media(file.toURI().toString());
                    mediaPlayer = new MediaPlayer(media);
                    jfxPanel.setScene(mediaPlayer.getMediaView().getScene());
                    mediaPlayer.play();
                }
            });
        }
        return jfxPanel;
    }
}

在这个示例中，我们创建了一个JFrame窗口，并使用JFXPanel组件来嵌入JavaFX媒体库。在getJFXPanel()方法中，我们加载了一个MP4视频文件并创建了一个MediaPlayer对象。然后，我们将MediaPlayer对象的MediaView组件添加到JFXPanel的场景中，并播放视频。最后，我们在Swing事件分派线程中启动JavaFX运行时，并初始化JFXPanel。