Java Swing程序没有在ubuntu中运行

Question

我尝试在ubuntu 16.04中执行java swing程序，它与默认用户一起正常工作，但是当我更改用户时它不能正常工作并显示以下错误。

    No protocol specified
Exception in thread "main" java.awt.AWTError: Can't connect to X11 window server using ':0' as the value of the DISPLAY variable.
    at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
    at sun.awt.X11GraphicsEnvironment.access$200(X11GraphicsEnvironment.java:65)
    at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:115)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:74)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at java.awt.GraphicsEnvironment.createGE(GraphicsEnvironment.java:103)
    at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:82)
    at java.awt.Window.initGC(Window.java:475)
    at java.awt.Window.init(Window.java:495)
    at java.awt.Window.<init>(Window.java:537)
    at java.awt.Frame.<init>(Frame.java:420)
    at java.awt.Frame.<init>(Frame.java:385)
    at javax.swing.JFrame.<init>(JFrame.java:189)
    at ImageButton.<init>(ImageButton.java:6)
    at ImageButton.main(ImageButton.java:23)

任何人都可以帮我这个。

Answer 1

如果java awt进程的用户不是你（谁登录到桌面），它可能无法传递xauth。 尝试通过以下方式与该用户分享您的.Xauthority：

export XAUTHORITY=/home/<you>/.Xauthority