將Tab添加到TabPane JavaFX

我正在嘗試使用fxml添加新選項卡。將Tab添加到TabPane JavaFX

我已經將選項卡添加到tabPane。

int numTabs = tabPane.getTabs().size(); 
Tab tab = new Tab("Tab " + (numTabs + 1)); 
tabPane.getTabs().add(tab);

但我不能

tabPane.getTabs().addAll((Tab)FXMLLoader.load(this.getClass().getResource("tab.fxml")));`

錯誤的FXML加載它：javafx.fxml.LoadException:

tab.fxml：

<TabPane fx:id="tabPane" layoutX="14.0" layoutY="105.0" 
     prefHeight="200.0" prefWidth="292.0" tabClosingPolicy="UNAVAILABLE"> 
    <tabs> 
    <Tab text="Untitled Tab"> 
     <content> 
     <AnchorPane id="Content" minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0"> 
      <children> 
      <Button layoutX="118.0" layoutY="74.0" mnemonicParsing="false" text="Button" /> 
      </children> 
     </AnchorPane> 
     </content> 
    </Tab> 
    </tabs> 
</TabPane>

編輯：我試過刪除de <TabPane>標籤，但沒有奏效。

<?xml version="1.0" encoding="UTF-8"?> 

<?import java.lang.*?> 
<?import java.util.*?> 
<?import javafx.scene.*?> 
<?import javafx.scene.control.*?> 
<?import javafx.scene.layout.*?> 

    <tabs> 
    <Tab text="Untitled Tab"> 
     <content> 
     <AnchorPane id="Content" minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0"> 
      <children> 
      <Button layoutX="118.0" layoutY="74.0" mnemonicParsing="false" text="Button" /> 
      </children> 
     </AnchorPane> 
     </content> 
    </Tab> 
    </tabs>

FXML主文檔：

<?xml version="1.0" encoding="UTF-8"?> 
<?import java.lang.*?> 
<?import java.util.*?> 
<?import javafx.scene.*?> 
<?import javafx.scene.control.*?> 
<?import javafx.scene.layout.*?> 

<AnchorPane id="AnchorPane" prefHeight="319.0" prefWidth="320.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2" fx:controller="testpane2.FXMLDocumentController"> 
    <children> 
    <Button fx:id="button" layoutX="126.0" layoutY="14.0" onAction="#handleButtonAction" text="Click Me!" /> 
    <Label fx:id="label" layoutX="126.0" layoutY="44.0" minHeight="16.0" minWidth="69.0" /> 
    <TabPane fx:id="tabPane" layoutX="14.0" layoutY="105.0" prefHeight="200.0" prefWidth="292.0" tabClosingPolicy="UNAVAILABLE" /> 
    </children> 
</AnchorPane>

堆棧跟蹤：

set 20, 2016 8:49:37 PM testpane2.FXMLDocumentController handleButtonAction 
SEVERE: null 
javafx.fxml.LoadException: 
file:/C:/Users/djodr/Documents/NetBeansProjects/testPane2/dist/run1904708287/testPane2.jar!/testpane2/tab.fxml 

    at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2543) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104) 
    at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097) 
    at testpane2.FXMLDocumentController.handleButtonAction(FXMLDocumentController.java:47) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:498) 
    at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71) 
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:498) 
    at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275) 
    at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769) 
    at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657) 
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191) 
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) 
    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49) 
    at javafx.event.Event.fireEvent(Event.java:198) 
    at javafx.scene.Node.fireEvent(Node.java:8411) 
    at javafx.scene.control.Button.fire(Button.java:185) 
    at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182) 
    at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96) 
    at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89) 
    at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218) 
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) 
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191) 
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) 
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) 
    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) 
    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54) 
    at javafx.event.Event.fireEvent(Event.java:198) 
    at javafx.scene.Scene$MouseHandler.process(Scene.java:3757) 
    at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485) 
    at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762) 
    at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:380) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:294) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:416) 
    at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389) 
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:415) 
    at com.sun.glass.ui.View.handleMouseEvent(View.java:555) 
    at com.sun.glass.ui.View.notifyMouse(View.java:937) 
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) 
    at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[9,129] 
Message: http://www.w3.org/TR/1999/REC-xml-names-19990114#AttributePrefixUnbound?TabPane&fx:id&fx 
    at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:596) 
    at javax.xml.stream.util.StreamReaderDelegate.next(StreamReaderDelegate.java:88) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2513) 
    ... 66 more

來源

2016-09-20 Djonathan Krause

請編輯您的問題以包含完整的堆棧跟蹤。 –

如果一切正確（不是這樣），你會得到一個'ClassCastException'，因爲你的FXML文件的根目錄是一個'TabPane'，並且你試圖將它轉換爲一個'Tab'。所以你需要讓'Tab'成爲FXML的根元素（移除「TabPane」）。但是既然你得到了一個'LoadException'，那麼在你進行轉換之前，看起來還有其他的東西出錯了。很難知道什麼沒有看到實際的堆棧跟蹤（可能是完整的FXML文件）。 –

嘿詹姆斯！我進行了改變，你能看一下嗎？：D –

給一個嘗試：

<Tab text="Untitled Tab"> 
    <content> 
    <AnchorPane id="Content" minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0"> 
     <children> 
     <Button layoutX="118.0" layoutY="74.0" mnemonicParsing="false" text="Button" /> 
     </children> 
    </AnchorPane> 
    </content> 
</Tab>

來源

2016-09-21 00:13:16 GOXR3PLUS

你真棒。謝謝！ –

還有一個問題。對於每個選項卡，我都有相同的控制器來填充組合框並進行訂購。現在我在控制器上設置了comboBoxes的空指針。 –

關於空指針，你可以看看這個問題。邏輯是一樣的（http://stackoverflow.com/questions/39628389/javafx-combobox-is-blank/39628627#39628627）。 – GOXR3PLUS

將Tab添加到TabPane JavaFX

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