spring boot javafx从资源文件夹加载视频

Question

您好我有一个春季启动javafx应用程序。我想从resources/video/a.mp4加载视频。

final Media m = new Media(getClass().getResource("/video/a.mp4").toString());
        this.player = new MediaPlayer(m);
        final MediaView view = new MediaView(player);
        final DoubleProperty width = view.fitWidthProperty();
        final DoubleProperty height = view.fitHeightProperty();
        width.bind(Bindings.selectDouble(view.sceneProperty(), "width"));
        height.bind(Bindings.selectDouble(view.sceneProperty(), "height"));
        view.setPreserveRatio(true);
        mainlayout.getChildren().add(view);
        player.play();

上面的代码没有播放视频。始终显示nullpointer异常。