获得无头异常：未设置 X11 DISPLAY 变量

java swing awt

2022-09-01 14:38:40

Exception in thread "main" java.awt.HeadlessException:
    No X11 DISPLAY variable was set, but this program performed an operation which requires it.
        at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:159)
        at java.awt.Window.<init>(Window.java:432)
        at java.awt.Frame.<init>(Frame.java:403)
        at javax.swing.JFrame.<init>(JFrame.java:202)
        at DrawGUI.<init>(DrawGUI.java:15)
        at ShapeCreator.<init>(ShapeCreator.java:31)
        at ShapeCreator.main(ShapeCreator.java:138)

此错误消息是什么意思？我该如何解决它？

答案 1

我假设你正在尝试隧道进入一些unix盒子。

确保在 PuTTY 设置中启用了 X11 转发。

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