java - javafx.fxml.LoadException 和 JavaFX SceneBuilder
问题描述
我创建 playerMp3。我正在尝试在 ScenBuilder 中创建一个 GUI 并将其导入我的代码中。我为此使用 FXMLoader,但编译时出现错误。在模块信息中,我已经指出我使用 javafx.fxml。我不知道错误是什么。我有 java 14、JavaFX SceneBuilder 2.0 和最新的 InteliJ 。
"C:\Program Files\Java\jdk-14\bin\java.exe" --add-modules javafx.base,javafx.graphics --add-reads javafx.base=ALL-UNNAMED --add-reads javafx.graphics=ALL-UNNAMED "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.1\lib\idea_rt.jar=53833:C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.1\bin" -Dfile.encoding=UTF-8 -p "C:\Users\Radek\.m2\repository\org\openjfx\javafx-base\14.0.1\javafx-base-14.0.1-win.jar;C:\Users\Radek\.m2\repository\org\openjfx\javafx-graphics\14.0.1\javafx-graphics-14.0.1-win.jar;C:\Users\Radek\Desktop\Moje programy\target\classes;C:\Users\Radek\.m2\repository\org\openjfx\javafx-graphics\14.0.1\javafx-graphics-14.0.1.jar;C:\Users\Radek\.m2\repository\org\openjfx\javafx-base\14.0.1\javafx-base-14.0.1.jar;C:\Users\Radek\.m2\repository\org\openjfx\javafx-fxml\14.0.1\javafx-fxml-14.0.1.jar;C:\Users\Radek\.m2\repository\org\openjfx\javafx-fxml\14.0.1\javafx-fxml-14.0.1-win.jar;C:\Users\Radek\.m2\repository\org\openjfx\javafx-controls\14.0.1\javafx-controls-14.0.1.jar;C:\Users\Radek\.m2\repository\org\openjfx\javafx-controls\14.0.1\javafx-controls-14.0.1-win.jar" -m mp3player/com.kulig.mp3player.main.Main
Exception in Application start method
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)
Caused by: java.lang.RuntimeException: Exception in Application start method
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: javafx.fxml.LoadException:
/C:/Users/Radek/Desktop/Moje%20programy/target/classes/fxml/mainPane.fxml:9
at javafx.fxml/javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2625)
at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:930)
at javafx.fxml/javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(FXMLLoader.java:980)
at javafx.fxml/javafx.fxml.FXMLLoader$Element.processStartElement(FXMLLoader.java:227)
at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:752)
at javafx.fxml/javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2722)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2552)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2466)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3237)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3194)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3163)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3136)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3113)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3106)
at mp3player/com.kulig.mp3player.main.Main.start(Main.java:17)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
... 1 more
Caused by: java.lang.ClassNotFoundException: fxml.MainPane
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:928)
... 22 more
Exception running application com.kulig.mp3player.main.Main
Process finished with exit code 1
我的 pom.xml
<artifactId>mp3player</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>14</maven.compiler.source>
<maven.compiler.target>14</maven.compiler.target>
<javafx.version>14.0.1</javafx.version>
</properties>
<dependencies>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-graphics</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>${javafx.version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>${javafx.version}</version>
</dependency>
</dependencies>
</project>
我的 fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="fxml.MainPane">
<children>
<Label layoutX="40.0" layoutY="310.0" text="mp2" />
</children>
</AnchorPane>
我的模块信息
module mp3player {
requires javafx.graphics;
requires javafx.controls;
requires javafx.fxml;
exports com.kulig.mp3player.main to javafx.graphics;
}
和我的主要课程
package com.kulig.mp3player.main;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) throws Exception {
Pane mainPane = FXMLLoader.load(getClass().getResource("/fxml/mainPane.fxml"));
Scene scene = new Scene(mainPane);
stage.setScene(scene);
stage.setTitle("Mp3 Player");
stage.show();
}
}
解决方案
打开 mp3player 到 javafx.fxml;在你的模块信息中添加这行代码;
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