我有一个 Jar 文件,我想在我的服务器上运行它。当我使用运行时,java -jar MyJar.jar
出现此错误:
No protocol specified
Exception in thread "main" java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.
at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at sun.awt.X11GraphicsEnvironment.access$200(Unknown Source)
at sun.awt.X11GraphicsEnvironment$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.awt.X11GraphicsEnvironment.<clinit>(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at java.awt.GraphicsEnvironment.createGE(Unknown Source)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(Unknown Source)
at java.awt.Window.initGC(Unknown Source)
at java.awt.Window.init(Unknown Source)
at java.awt.Window.<init>(Unknown Source)
at java.awt.Frame.<init>(Unknown Source)
at javax.swing.JFrame.<init>(Unknown Source)
at Dots.main(Dots.java:13)
经过一番研究,我找到了各种解决方案,但没有一个能解决我的问题:export DISPLAY=:0
不幸xhost +
的是,这又回来了
No protocol specified
xhost: unable to open display ":0"
编辑* 也尝试过java -Djava.awt.headless=true -jar MyJar.jar
但出现此错误:
Exception in thread "main" java.awt.HeadlessException
at java.awt.GraphicsEnvironment.checkHeadless(Unknown Source)
at java.awt.Window.<init>(Unknown Source)
at java.awt.Frame.<init>(Unknown Source)
at javax.swing.JFrame.<init>(Unknown Source)
at Dots.main(Dots.java:13)
有什么解决办法吗?
答案1
您还没有列出您排除的内容,那么:
java -Djava.awt.headless=true -jar MyJar.jar
答案2
您可能需要在该显示器上启动 X 客户端(如 VNC)。您已经这样做了吗?
答案3
答案很简单ssh -Y <server>
,或者ssh -X <server>
这将启用 X11Forwarding,从而允许您运行程序。但是对我来说,-X 选项会在登录到服务器一段时间后使 X11Forwarding 超时。-Y 将保持 x11Fowarding 不变。