相关疑难解决方法(0)

我正在将我的旧Java应用程序从swing转换为javafx,我遇到了一个问题.

我正在使用以下代码来捕获屏幕截图:

 public ScreenCapper() {
    ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    gs = ge.getScreenDevices();

    try {
        robot = new Robot(gs[gs.length-1]);
    } catch (AWTException e) {
        LOGGER.getInstance().ERROR("Error creating screenshot robot instance!");
    }
}

public Color capture() {
    Rectangle bounds;

    mode = gs[0].getDisplayMode();
    bounds = new Rectangle(0, 0, mode.getWidth(), mode.getHeight());
    //......
}

这在Windows下运行应用程序时工作正常.但是,在OSX下运行时会出现以下异常:

Exception in Application start method
Exception in thread "main" java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:403)
at com.sun.javafx.application.LauncherImpl.access$000(LauncherImpl.java:47)
at com.sun.javafx.application.LauncherImpl$1.run(LauncherImpl.java:115)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.awt.HeadlessException
at sun.java2d.HeadlessGraphicsEnvironment.getScreenDevices(HeadlessGraphicsEnvironment.java:72)
at be.beeles_place.roggbiv.utils.ScreenCapper.<init>(ScreenCapper.java:33)
at be.beeles_place.roggbiv.modes.AverageColorMode.start(AverageColorMode.java:31) …