Невозможно открыть новое окно (на основе FXML) с Java - PullRequest
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Невозможно открыть новое окно (на основе FXML) с Java

0 голосов
/ 01 мая 2018

Для моей программы я хочу открыть дополнительное окно после нажатия на кнопку. Для одной кнопки это работает отлично. Для другой кнопки я получаю сообщение об ошибке выше. Я работаю с файлами JavaFX и FXML.

Ниже приведены методы, в которых я пытаюсь создать новые окна. Первый не работает, второй работает: 

@FXML
    protected void addComp(ActionEvent ae) throws IOException {
        Parent root = FXMLLoader.load(getClass().getResource("/gui/addcomp.fxml"));
        Stage stage = new Stage();
        stage.setTitle("Wettkampf Manager");
        stage.setScene(new Scene(root));
        stage.show();
    }

    @FXML
    protected void editComp(ActionEvent ae) throws IOException {
        Parent root = FXMLLoader.load(getClass().getResource("/gui/choosecomp.fxml"));
        Stage stage = new Stage();
        stage.setTitle("Wettkampf Manager");
        stage.setScene(new Scene(root));
        stage.show();
    }

Теперь файл FXML не загружается: 

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

<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ButtonBar?>
<?import javafx.scene.control.DatePicker?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.SplitPane?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.RowConstraints?>
<?import javafx.scene.text.Font?>


<BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="512.0" prefWidth="1024.0" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="controller.AddCompController">
   <top>
      <Label text="Wettkampf anlegen" BorderPane.alignment="CENTER">
         <font>
            <Font name="System Bold" size="48.0" />
         </font>
      </Label>
   </top>
   <center>
      <SplitPane dividerPositions="0.5" prefHeight="160.0" prefWidth="200.0" BorderPane.alignment="CENTER">
        <items>
          <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0">
               <children>
                  <SplitPane dividerPositions="0.3" orientation="VERTICAL" prefHeight="200.0" prefWidth="160.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                    <items>
                      <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="100.0" prefWidth="160.0">
                           <children>
                              <Label layoutX="188.0" layoutY="39.0" text="Datum" AnchorPane.leftAnchor="50.0" AnchorPane.topAnchor="50.0">
                                 <font>
                                    <Font name="System Bold" size="24.0" />
                                 </font>
                              </Label>
                           </children>
                        </AnchorPane>
                      <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="100.0" prefWidth="160.0">
                           <children>
                              <DatePicker fx:id="datePicker" layoutX="73.0" layoutY="48.0" AnchorPane.bottomAnchor="200.0" AnchorPane.leftAnchor="50.0" AnchorPane.topAnchor="50.0" />
                           </children>
                        </AnchorPane>
                    </items>
                  </SplitPane>
               </children>
            </AnchorPane>
          <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0">
               <children>
                  <GridPane layoutX="33.0" layoutY="101.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                    <columnConstraints>
                      <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
                    </columnConstraints>
                    <rowConstraints>
                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                      <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
                    </rowConstraints>
                     <children>
                        <Label text="Austragungsort">
                           <GridPane.margin>
                              <Insets left="50.0" />
                           </GridPane.margin>
                           <font>
                              <Font name="System Bold" size="24.0" />
                           </font>
                        </Label>
                        <TextField fx:id="gymName" promptText="Halle" GridPane.rowIndex="1">
                           <GridPane.margin>
                              <Insets left="50.0" right="50.0" />
                           </GridPane.margin>
                        </TextField>
                        <TextField fx:id="street" promptText="Straße, Hausnummer" GridPane.rowIndex="2">
                           <GridPane.margin>
                              <Insets left="50.0" right="50.0" />
                           </GridPane.margin>
                        </TextField>
                        <TextField fx:id="location" promptText="PLZ, Ort" GridPane.rowIndex="3">
                           <GridPane.margin>
                              <Insets left="50.0" right="50.0" />
                           </GridPane.margin>
                        </TextField>
                     </children>
                  </GridPane>
               </children>
            </AnchorPane>
        </items>
      </SplitPane>
   </center>
   <bottom>
      <ButtonBar prefHeight="40.0" prefWidth="200.0" BorderPane.alignment="CENTER">
        <buttons>
          <Button mnemonicParsing="false" onAction="#addComp" prefHeight="30.0" prefWidth="150.0" text="Anlegen" />
            <Button mnemonicParsing="false" onAction="#cancel" prefHeight="30.0" prefWidth="150.0" text="Abbrechen" />
        </buttons>
      </ButtonBar>
   </bottom>
</BorderPane>

Файл FXML был создан с помощью Scene Builder.

В конце полное сообщение об ошибке: 

Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1774)
    at javafx.fxml.FXMLLoader$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.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:8413)
    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.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$MouseEventNotification.run(GlassViewEventHandler.java:381)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:417)
    at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:416)
    at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
    at com.sun.glass.ui.View.notifyMouse(View.java:937)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at sun.reflect.misc.Trampoline.invoke(Unknown Source)
    at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at sun.reflect.misc.MethodUtil.invoke(Unknown Source)
    at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1769)
    ... 52 more
Caused by: javafx.fxml.LoadException: 
/F:/Softwareentwicklung/CompetitionManager/bin/gui/addcomp.fxml

    at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601)
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2579)
    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 controller.StartPageController.addComp(StartPageController.java:16)
    ... 62 more
Caused by: java.lang.IllegalArgumentException: Can not set javafx.scene.control.TextField field controller.AddCompController.location to java.net.URL
    at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source)
    at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source)
    at sun.reflect.UnsafeObjectFieldAccessorImpl.set(Unknown Source)
    at java.lang.reflect.Field.set(Unknown Source)
    at javafx.fxml.FXMLLoader.injectFields(FXMLLoader.java:1163)
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2554)
    ... 70 more

1 Ответ

0 голосов
/ 01 мая 2018

Есть некоторые ключи, которые автоматически используются FXMLLoader в пространстве имен и соответствуют специальным значениям. FXMLLoader также попытается ввести эти значения в контроллер, который не работает, если поле для ввода имеет неправильный тип.

location используется для свойства FXMLLoader location, т.е. оно содержит URL, если вы не загружаете из InputStream (что в большинстве случаев является плохой идеей).

Поле в вашем классе контроллера имеет тип TextField, поэтому вы получите ошибку, поскольку URL нельзя назначить TextField: 

Caused by: java.lang.IllegalArgumentException: Can not set javafx.scene.control.TextField field controller.AddCompController.location to java.net.URL

Вам необходимо изменить имя поля fx:id / на другое значение.

Другое имя, которое не должно использоваться, - resources, так как ему присвоено значение свойства FXMLLoader.resources.

...