如何在linux服务器上使用sun.awt.X11GraphicsEnvironment？

Question

我使用的是 linux 服务器，但出现如下错误：java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment

我使用 java.awt.robot 类截屏

这是我的代码：

import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;

public class DesktopScreenshot {
    public static void main(String[] args) throws Exception {
        Robot robot = new Robot();
        Rectangle screenShot = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
        BufferedImage screenFullImage = robot.createScreenCapture(screenShot);
        File screenshotFile = new File("screenshot.png");
        ImageIO.write(screenFullImage, "png", screenshotFile);
    }
}

设置无头属性：System.setProperty("java.awt.headless", "false") 然后我得到 java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment

当我将此属性设置为 true 时，它会给出“无头环境异常”