JavaFX 8加載外部FXML

Question

查看JavaFX SceneBuilder時，它可以加載任何類型的fxml。根節點或控制器被忽略。場景構建器能夠加載任何類型的fxml並可以顯示其組件。

有沒有人幻想加載一個fxml的方式，直接指向它的字段的id，控制器或根節點的類型？

問題是，當我嘗試加載任何fxml時，它只能加載，如果我設置正確的根類型。我想加載（通過FileChooser）我可以找到的任何FXML（讓我們說）一個窗格。

任何想法將不勝感激（www中的所有幫助都指向使用特定根類型的加載機制，因此根類型是已知的）。我想加載未知根類型不顧外匯：身份證的等

例外：

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:917) 
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$152(LauncherImpl.java:182) 
    at com.sun.javafx.application.LauncherImpl$$Lambda$2/1531448569.run(Unknown Source) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: java.lang.RuntimeException: javafx.fxml.LoadException: 
/C:/Users/Dominik/Documents/fhnw/bath/svn/examples/fxmlloader/out/production/FxHeatMap/eu/hansolo/fx/heatmap/fxmlload/Application.fxml:20 

    at eu.hansolo.fx.heatmap.fxmlload.FXMLLoader.start(FXMLLoader.java:34) 
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$159(LauncherImpl.java:863) 
    at com.sun.javafx.application.LauncherImpl$$Lambda$66/84373524.run(Unknown Source) 
    at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$172(PlatformImpl.java:326) 
    at com.sun.javafx.application.PlatformImpl$$Lambda$47/1537074899.run(Unknown Source) 
    at com.sun.javafx.application.PlatformImpl.lambda$null$170(PlatformImpl.java:295) 
    at com.sun.javafx.application.PlatformImpl$$Lambda$50/1947223685.run(Unknown Source) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$171(PlatformImpl.java:294) 
    at com.sun.javafx.application.PlatformImpl$$Lambda$48/835743810.run(Unknown Source) 
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) 
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) 
    at com.sun.glass.ui.win.WinApplication.lambda$null$145(WinApplication.java:101) 
    at com.sun.glass.ui.win.WinApplication$$Lambda$38/1962582134.run(Unknown Source) 
    ... 1 more 
Caused by: javafx.fxml.LoadException: 
/C:/Users/Dominik/Documents/fhnw/bath/svn/examples/fxmlloader/out/production/FxHeatMap/eu/hansolo/fx/heatmap/fxmlload/Application.fxml:20 

    at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2605) 
    at javafx.fxml.FXMLLoader.access$700(FXMLLoader.java:104) 
    at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:918) 
    at javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(FXMLLoader.java:967) 
    at javafx.fxml.FXMLLoader$Element.processStartElement(FXMLLoader.java:216) 
    at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:740) 
    at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2711) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2531) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2445) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3218) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3179) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3152) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3128) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3108) 
    at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3101) 
    at eu.hansolo.fx.heatmap.fxmlload.FXMLLoader.start(FXMLLoader.java:32) 
    ... 14 more 
Caused by: java.lang.ClassNotFoundException: sample.MainController 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) 
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 
    at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:916) 
    ... 27 more 

Process finished with exit code 1 

Answer 1

有fx:controller和fx:root屬性。不要混淆。您可以通過將加載的對象轉換爲超類的Parent來忽略根佈局類型。但我認爲沒有辦法忽略在fxml文件中定義的fx:controller。在這種情況下，您需要自己加載文件，並從文件中刪除fx：controller的值。