基本javafx scenebuilder fxml文件导致错误

Question

我试图创建一个中间有几个选项卡的基本窗口，第一个选项卡包含一个表。

每次我运行主Java类时，它都会给我错误，甚至当我删除table和tab时也是如此。

下面是我的主要文件：

package application;

import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.fxml.FXMLLoader;


public class Main extends Application {
    @Override
    public void start(Stage primaryStage) {
        try {
            BorderPane root = (BorderPane)FXMLLoader.load(getClass().getResource("Sample.fxml"));
            Scene scene = new Scene(root,400,400);
            scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
            primaryStage.setScene(scene);
            primaryStage.show();
        } catch(Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        launch(args);
    }
}

下面是我的fxml文件：

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

<?import com.gluonhq.charm.glisten.control.NavigationDrawer?>
<?import javafx.scene.control.Tab?>
<?import javafx.scene.control.TabPane?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?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?>

<BorderPane xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application/SampleController.java">
   <left>
      <GridPane minHeight="-Infinity" minWidth="-Infinity" prefHeight="720.0" prefWidth="1280.0" BorderPane.alignment="CENTER">
        <columnConstraints>
          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="300.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="580.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="300.0" />
        </columnConstraints>
        <rowConstraints>
          <RowConstraints maxHeight="81.0" minHeight="60.0" prefHeight="60.0" vgrow="SOMETIMES" />
          <RowConstraints maxHeight="152.0" minHeight="60.0" prefHeight="60.0" vgrow="SOMETIMES" />
          <RowConstraints maxHeight="420.0" minHeight="420.0" prefHeight="420.0" vgrow="SOMETIMES" />
            <RowConstraints maxHeight="315.0" minHeight="180.0" prefHeight="180.0" vgrow="SOMETIMES" />
        </rowConstraints>
         <children>
            <TabPane prefHeight="200.0" prefWidth="200.0" tabClosingPolicy="UNAVAILABLE" GridPane.columnIndex="1" GridPane.rowIndex="2">
              <tabs>
                <Tab text="Untitled Tab 1">
                  <content>
                    <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
                           <children>
                              <TableView editable="true" layoutX="109.0" layoutY="47.0" prefHeight="200.0" prefWidth="200.0" tableMenuButtonVisible="true" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                                <columns>
                                  <TableColumn prefWidth="75.0" text="C1" />
                                  <TableColumn prefWidth="75.0" text="C2" />
                                </columns>
                              </TableView>
                           </children>
                        </AnchorPane>
                  </content>
                </Tab>
                <Tab text="Untitled Tab 2">
                  <content>
                    <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
                  </content>
                </Tab>
              </tabs>
            </TabPane>
            <NavigationDrawer GridPane.columnIndex="1" GridPane.rowIndex="3" />
         </children>
      </GridPane>
   </left>
</BorderPane>

任何事都有帮助。我在这上面找不到任何东西，但可能是我的FXMLLoader.Load文件源吗？我真的不知道。

下面是我的错误代码：

javafx.fxml.LoadException: 
/C:/Users/_____/Desktop/AllJava/Java/SecAnalyzer/bin/application/Sample.fxml

    at javafx.fxml.FXMLLoader.constructLoadException(Unknown Source)
    at javafx.fxml.FXMLLoader.importClass(Unknown Source)
    at javafx.fxml.FXMLLoader.processImport(Unknown Source)
    at javafx.fxml.FXMLLoader.processProcessingInstruction(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.load(Unknown Source)
    at application.Main.start(Main.java:14)
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(Unknown Source)
    at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(Unknown Source)
    at com.sun.javafx.application.PlatformImpl.lambda$null$173(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(Unknown Source)
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$null$148(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.gluonhq.charm.glisten.control.NavigationDrawer
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at javafx.fxml.FXMLLoader.loadTypeForPackage(Unknown Source)
    at javafx.fxml.FXMLLoader.loadType(Unknown Source)
    ... 21 more

安装gluon Mobile后出现新错误：

javafx.fxml.LoadException: 
/C:/Users/____/Desktop/AllJava/Java/SecAnalyzer/bin/application/Sample.fxml:14

    at javafx.fxml.FXMLLoader.constructLoadException(Unknown Source)
    at javafx.fxml.FXMLLoader.access$700(Unknown Source)
    at javafx.fxml.FXMLLoader$ValueElement.processAttribute(Unknown Source)
    at javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(Unknown Source)
    at javafx.fxml.FXMLLoader$Element.processStartElement(Unknown Source)
    at javafx.fxml.FXMLLoader$ValueElement.processStartElement(Unknown Source)
    at javafx.fxml.FXMLLoader.processStartElement(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.loadImpl(Unknown Source)
    at javafx.fxml.FXMLLoader.load(Unknown Source)
    at application.Main.start(Main.java:14)
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(Unknown Source)
    at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(Unknown Source)
    at com.sun.javafx.application.PlatformImpl.lambda$null$173(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(Unknown Source)
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$null$148(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: application/SampleController.java
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 23 more

Answer 1

您的类路径中是否有NavigationDrawer.Class？

原因：java.lang.ClassNotFoundException：com.gluonhq.charm.glisten.control.NavigationDrawer

在FXML文件中，您有：

<?import com.gluonhq.charm.glisten.control.NavigationDrawer?>

因此，您需要在类路径中包含NavigationDrawer.class才能正确加载FXML文档。

如果没有，您需要从GLUONHQ下载它。