Question

我在点击“提交”按钮时尝试切换场景。

当我运行程序时，我收到此错误：

Caused by: java.lang.ClassNotFoundException: capitals.FXMLAnswerController

以下是上下文：

我有一个控制主窗口的FXML控制器FXMLController.java，这里是代码：

package capitals;
// imports ommited

public class FXMLController implements Initializable {

    @FXML
    private Button submitButton;
    @FXML
    private Button exitButton;

    @FXML
    private void handleSubmit(ActionEvent event) throws IOException
    {
        Parent parent  = FXMLLoader.load(getClass().getResource("answerPage.fxml")); // same package: capitals
        Scene scene = new Scene(parent);
        Stage appStage = (Stage) ((Node) event.getSource()).getScene().getWindow();
        appStage.setScene(scene);
        appStage.show();
    }

    @Override
    public void initialize(URL url, ResourceBundle resourceBundle)
    {

    }
}

相应的FXML文档如下（FXMLDocument.fxml）：

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

<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity"    minWidth="-Infinity" prefHeight="150.0" prefWidth="435.0" styleClass=".root" xmlns="http://javafx.com/javafx/8.0.102" xmlns:fx="http://javafx.com/fxml/1" fx:controller="capitals.FXMLController">
<children> 
  <TextField layoutX="83.0" layoutY="66.0" prefHeight="35.0" prefWidth="269.0" promptText="Type here..." style="-fx-background-radius: 6,6,6,6;" />
  <Button id="exitButton" fx:id="exitButton" cancelButton="true" layoutX="306.0" layoutY="109.0" mnemonicParsing="false" onAction="#exit" style="-fx-font: 15 arial; -fx-background-radius: 7,7,7,7; -fx-base: #dbd8d6;" text="Exit" textAlignment="CENTER" textFill="RED" />
  <Text layoutX="11.0" layoutY="49.0" strokeType="OUTSIDE" strokeWidth="0.0" text="What's the capital of The United Kingdom?" textAlignment="CENTER">
     <font>
        <Font name="Century Gothic Bold" size="22.0" />
     </font>
  </Text>
  <Button id="exitButton" fx:id="submitButton" cancelButton="true" layoutX="83.0" layoutY="109.0" mnemonicParsing="false" onAction="#handleSubmit" style="-fx-font: 15 arial; -fx-background-radius: 7,7,7,7; -fx-base: #b6e7c9;" text="Submit" textAlignment="CENTER" textFill="#141414" />
   </children>
</AnchorPane>

我接下来做的是在点击“提交”按钮时创建适当的场景，相应的FXML文档名为answerPage.fxml：

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

<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="491.0" prefWidth="667.0" xmlns="http://javafx.com/javafx/8.0.102" xmlns:fx="http://javafx.com/fxml/1" fx:controller="capitals.FXMLAnswerController">
<children>
  <VBox layoutX="287.0" layoutY="85.0" prefHeight="321.0" prefWidth="381.0" />
  <Label fx:id="resultStatement" alignment="CENTER" layoutX="275.0" layoutY="14.0" text="LABEL!" textAlignment="CENTER">
     <font>
        <Font name="Century Gothic Bold" size="40.0" />
     </font>
  </Label>
  <ImageView fx:id="flag" fitHeight="154.0" fitWidth="250.0" layoutX="47.0" layoutY="134.0" pickOnBounds="true" preserveRatio="true" />
  <Button fx:id="playAgainButton" defaultButton="true" layoutX="164.0" layoutY="420.0" mnemonicParsing="false" prefHeight="38.0" prefWidth="97.0" style="-fx-background-radius: 7,7,7,7;" text="Play Again" textAlignment="CENTER">
     <font>
        <Font name="Century Gothic Bold Italic" size="15.0" />
     </font>
  </Button>
  <Button fx:id="exitButton" cancelButton="true" layoutX="393.0" layoutY="420.0" mnemonicParsing="false" prefHeight="38.0" prefWidth="97.0" style="-fx-base: #dbd8d6; -fx-backround-radius: 7,7,7,7;" text="Exit" textAlignment="CENTER" textFill="RED">
     <font>
        <Font name="Century Gothic Bold Italic" size="15.0" />
     </font>
  </Button>
 </children>
</AnchorPane>

答案控制器目前是空的：

package capitals;

public class FXMLAnswerController implements Initializable {

    @FXML
    private Button playAgainButton;
    @FXML
    private Button exitButton;

    @Override
    public void initialize(URL url, ResourceBundle resourceBundle)
    {

    }
}

请注意，所有这些文件都在同一个包中，它们位于src / capitals文件夹中。 FXML文件也在bin /中。（出于长篇原因，有意省略进口）。

我提前感谢您的帮助。

JavaFX FXML控制器ClassNotFoundException

0 个答案: