我有一个 javafx 应用程序，它在我的 PC 上运行良好，但在我的笔记本电脑上根本无法运行我相信我的 PC 和笔记本电脑上的设置相同：
- NetBeans 7.4
- Java 1.7.0_45
这是启动方法
@Override
public void start(Stage stage) throws Exception {
FXMLLoader loader = new FXMLLoader();
Parent fxmlRoot = (Parent) loader.load(new FileInputStream(new File(
"src\\com\\gasstation\\views\\main-layout.fxml")));
Scene scene = new Scene(fxmlRoot);
stage.setScene(scene);
stage.show();
GasStationXmlParser parser = new GasStationXmlParser("src\\config.xml");
newGasStation = parser.getGasStations();
MainController mainController = loader.getController();
for (GasStation station : newGasStation) {
mainController.setConfigData(station);
}
startAllGasStations();
}
当我尝试运行应用程序时，我得到：
java.lang.NullPointerException
at javafx.fxml.FXMLLoader.equals(FXMLLoader.java:1855)
at javafx.fxml.FXMLLoader.isCyclic(FXMLLoader.java:1867)
at javafx.fxml.FXMLLoader.access$2200(FXMLLoader.java:66)
at javafx.fxml.FXMLLoader$IncludeElement.constructValue(FXMLLoader.java:935)
at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:565)
at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2348)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2164)
at com.gasstation.main.Main.start(Main.java:27)
at com.sun.javafx.application.LauncherImpl$5.run(LauncherImpl.java:319)
at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:216)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:179)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:176)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:176)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:76)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:17)
at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:67)
at java.lang.Thread.run(Thread.java:744)
Exception in Application start method
Exception in thread "main" java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:403)
at com.sun.javafx.application.LauncherImpl.access$000(LauncherImpl.java:47)
at com.sun.javafx.application.LauncherImpl$1.run(LauncherImpl.java:115)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
at javafx.stage.Window.impl_visibleChanging(Window.java:816)
at javafx.stage.Stage.impl_visibleChanging(Stage.java:922)
at javafx.stage.Window$9.invalidated(Window.java:690)
at javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:127)
at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:161)
at javafx.stage.Window.setShowing(Window.java:779)
at javafx.stage.Window.show(Window.java:794)
at javafx.stage.Stage.show(Stage.java:229)
at com.gasstation.main.Main.start(Main.java:37)
at com.sun.javafx.application.LauncherImpl$5.run(LauncherImpl.java:319)
at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:216)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:179)
at com.sun.javafx.application.PlatformImpl$4$1.run(PlatformImpl.java:176)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$4.run(PlatformImpl.java:176)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:76)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:17)
at com.sun.glass.ui.win.WinApplication$3$1.run(WinApplication.java:67)
... 1 more
Java Result: 1
我无法解决任何问题......
有任何想法吗？