图像不显示在发射时由主，但显示在场景构建器

Question

package com.doki;

import java.io.IOException;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;

public class MainRpg extends Application {

    private Stage stage;
    private BorderPane fenetre;

    @Override
    public void start(Stage stage) {
        this.stage = stage;
        this.stage.setTitle("Xar'Saroth");

        initFenetre();

        showMenu();
    }

    /**
     * Initializes the root layout.
     */
    public void initFenetre() {
        try {
            // Load root layout from fxml file.
            FXMLLoader loader = new FXMLLoader();
            loader.setLocation(MainRpg.class.getResource("view/Fenetre.fxml"));
            fenetre = (BorderPane) loader.load();

            // Show the scene containing the root layout.
            Scene scene = new Scene(fenetre);
            stage.setScene(scene);
            stage.show();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * Shows the person overview inside the root layout.
     */
    public void showMenu() {
        try {
            // Load person overview.
            FXMLLoader loader = new FXMLLoader();
            loader.setLocation(MainRpg.class.getResource("view/Menu.fxml"));
            AnchorPane personOverview = (AnchorPane) loader.load();

            // Set person overview into the center of root layout.
            fenetre.setCenter(personOverview);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * Returns the main stage.
     * @return
     */
    public Stage getStage() {
        return stage;
    }

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

和我的场景代码：

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

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ButtonBar?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.image.ImageView?>
<?import javafx.scene.layout.AnchorPane?>

<AnchorPane prefHeight="600.0" prefWidth="900.0" xmlns="http://javafx.com/javafx/9.0.1" xmlns:fx="http://javafx.com/fxml/1">
   <children>
      <ImageView fitHeight="600.0" fitWidth="900.0" pickOnBounds="true" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
         <image>
            <Image url="@../menuImage.jpg" />
         </image>
      </ImageView>
      <ImageView fitHeight="186.0" fitWidth="489.0" layoutX="206.0" layoutY="343.0" pickOnBounds="true" preserveRatio="true" AnchorPane.bottomAnchor="150.0">
         <image>
            <Image url="@../xarSaroth.png" />
         </image>
      </ImageView>
      <ButtonBar layoutX="295.0" layoutY="518.0" prefHeight="40.0" prefWidth="281.0" AnchorPane.bottomAnchor="50.0">
        <buttons>
          <Button mnemonicParsing="false" prefHeight="25.0" text="Continuer" />
            <Button mnemonicParsing="false" prefHeight="25.0" prefWidth="134.0" text="Nouvelle Partie" />
        </buttons>
      </ButtonBar>
   </children>
</AnchorPane>

我读过这样的帖子：

为什么我的背景图像不是用FXML显示的

    java.io.FileNotFoundException: C:\Users\Stagiaire ACI\Desktop\Java\XarSaroth\bin\com\doki\menuImage.jpg (Le fichier spécifié est introuvable)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
at java.net.URL.openStream(Unknown Source)
at com.sun.javafx.iio.common.ImageTools.createInputStream(ImageTools.java:486)
at com.sun.javafx.iio.ImageStorage.loadAll(ImageStorage.java:311)
at com.sun.javafx.tk.quantum.PrismImageLoader2.loadAll(PrismImageLoader2.java:127)
at com.sun.javafx.tk.quantum.PrismImageLoader2.<init>(PrismImageLoader2.java:71)
at com.sun.javafx.tk.quantum.QuantumToolkit.loadImage(QuantumToolkit.java:720)
at javafx.scene.image.Image.loadImage(Image.java:1065)
at javafx.scene.image.Image.initialize(Image.java:807)
at javafx.scene.image.Image.<init>(Image.java:695)
at com.sun.javafx.fxml.builder.JavaFXImageBuilder.build(JavaFXImageBuilder.java:47)
at com.sun.javafx.fxml.builder.JavaFXImageBuilder.build(JavaFXImageBuilder.java:37)
at javafx.fxml.FXMLLoader$ValueElement.processEndElement(FXMLLoader.java:763)
at javafx.fxml.FXMLLoader.processEndElement(FXMLLoader.java:2823)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2532)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2409)
at com.doki.MainRpg.showMenu(MainRpg.java:56)
at com.doki.MainRpg.start(MainRpg.java:24)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Unknown Source)

Answer 1

好的，我认为当您在imageView中为图像的url路径编写代码时，不应该参考IDE的文件树结构，而应该参考编译目录的文件树结构。

例如，这里是错误的代码。我已经将“图像”文件夹标记为IDEA中的资源文件夹。图片将在您在场景构建器中预览时显示，但在运行程序时不显示。

错误的例子

因此在这种情况下，您可以将代码更改为：

<image>
    <Image url="@../desk.jpg" />
</image>

它将工作，尽管它不能预览在场景构建器。

而且下面的代码也起作用，因为“ballgame”是根目录：

<image>
    <Image url="@/desk.jpg" />
</image>