私はSwingのGUIを示すKuraのバンドルを作成するのに助けが必要です。私はJavaとOSGIを使ってバンドルを作成しています。私はラズベリーPIでそれを実行します。kura上のJava swing GUI
私は、バンドルのアクティベーターの内側にこのコードを置く:私を助けてください
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:207) at java.awt.Window.(Window.java:536) at java.awt.Frame.(Frame.java:420) at javax.swing.JFrame.(JFrame.java:225) at com.riccardofontanini.astrogui.AstroGUIActivator.createAndShow(AstroGUIActivator.java:56) at com.riccardofontanini.astrogui.AstroGUIActivator$1.run(AstroGUIActivator.java:47) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:744) at java.awt.EventQueue.access$400(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:697) at java.awt.EventQueue$3.run(EventQueue.java:691) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) at java.awt.EventQueue.dispatchEvent(EventQueue.java:714) 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)
:
public void activate(ComponentContext componentContext, Map<String,Object> properties)
{
System.out.println("Sono AstroGUI!!!!");
Runnable runnable = new Runnable() {
public void run() {
createAndShow();
}
};
SwingUtilities.invokeLater(runnable);
}
static void createAndShow() {
JFrame frame = new JFrame("Hello World");
frame.setSize(640,480);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
しかし、私はバンドルをアップロードすると、システムはこのエラーを返します!
[多分これ](http://stackoverflow.com/questions/20648809/raspberry-pi-no-x11-display-variable-was-set-but - このプログラム実行されたope)または[this](http://stackoverflow.com/questions/5218870/getting-a-headlessexception-no-x11-display-variable-was-set) – MadProgrammer
またはこれをチェックするhttp://stackoverflow.com/a/5218891/4606266 – ziLk