當我在docker中運行我的應用程序時,出現以下Java異常。在沒有圖形環境的情況下啓動java應用程序
Exception in thread "AWT-EventQueue-0" 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:204)
at java.awt.Window.<init>(Window.java:536)
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 mantra.mfs100.test.MFS100Test.<init>(MFS100Test.java:67)
at mantra.mfs100.test.MFS100Test$8.run(MFS100Test.java:450)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
我的搬運工文件看起來像這樣...
# cat Dockerfile
FROM openjdk:8
COPY . /usr/src/myapp
WORKDIR "x64/mfs100_9.0.2.2_x86_redist/"
RUN "./install.sh"
WORKDIR /usr/src/myapp
CMD ["java", "-jar", "/usr/src/myapp/dist/myap.jar"]
我使用亞馬遜的測試提供Ubuntu桌面。如果我在Ubuntu桌面上安裝Java應用程序(沒有docker),它會按預期工作。這是碼頭問題還是我訪問亞馬遜雲Ubuntu的方式?