应用程序启动方法中的 JavaFX Maven 异常
JavaFX Maven Exception in Application start method
这几天我一直被这个问题困扰。我在 Whosebug 和其他网站上找到并阅读了很多 post，但是 none 的解决方案对我有用。我的 Maven 项目中的 JavaFX 有问题。我使用 java 15 和 JavaFX 15.0.1。
以下是我项目中的文件：
pom.xml 文件：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>Maven_javaFx</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>15</maven.compiler.source>
<maven.compiler.target>15</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>15.0.1</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-graphics </artifactId>
<version>15.0.1</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>15.0.1</version>
</dependency>
</dependencies>
</project>
这是我的 Main.java class:
package main;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("src/main/java/resources/mainH/view.fxml"));
primaryStage.setTitle("Hello World");
primaryStage.setScene(new Scene(root, 300, 275));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
这是 view.fxml 文件：
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="controllers.controller">
<children>
<Pane layoutX="200.0" layoutY="100.0" prefHeight="200.0" prefWidth="200.0">
<children>
<Button layoutX="74.0" layoutY="100.0" mnemonicParsing="false" text="Button" />
</children>
</Pane>
</children>
</AnchorPane>
这是我尝试编译代码时弹出的消息：
C:\Users\rafal\.jdks\openjdk-15\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 Community Edition 2020.2.3\lib\idea_rt.jar=64406:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.2.3\bin" -Dfile.encoding=UTF-8 -classpath C:\Users\rafal\Desktop\studia\Różne\Maven_javaFx\target\classes;C:\Users\rafal\.m2\repository\org\openjfx\javafx-controls.0.1\javafx-controls-15.0.1.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-controls.0.1\javafx-controls-15.0.1-win.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-graphics.0.1\javafx-graphics-15.0.1.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-graphics.0.1\javafx-graphics-15.0.1-win.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-base.0.1\javafx-base-15.0.1.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-base.0.1\javafx-base-15.0.1-win.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-fxml.0.1\javafx-fxml-15.0.1.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-fxml.0.1\javafx-fxml-15.0.1-win.jar -p C:\Users\rafal\.m2\repository\org\openjfx\javafx-base.0.1\javafx-base-15.0.1-win.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-graphics.0.1\javafx-graphics-15.0.1-win.jar 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:64)
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:64)
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$FXHelper.main(LauncherHelper.java:1071)
Caused by: java.lang.RuntimeException: Exception in Application start method
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication(LauncherImpl.java:195)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.lang.IllegalAccessError: class com.sun.javafx.fxml.FXMLLoaderHelper (in unnamed module @0x5d7c5b47) cannot access class com.sun.javafx.util.Utils (in module javafx.graphics) because module javafx.graphics does not export com.sun.javafx.util to unnamed module @0x5d7c5b47
at com.sun.javafx.fxml.FXMLLoaderHelper.<clinit>(FXMLLoaderHelper.java:38)
at javafx.fxml.FXMLLoader.<clinit>(FXMLLoader.java:2138)
at main.Main.start(Main.java:13)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater(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(WinApplication.java:174)
... 1 more
Exception running application main.Main
我看到的大多数 post 问题都通过更改 getResource() 中的目录得到解决 method.I 尝试了该方法以及您可能在 pom 文件中看到的许多其他解决方案。我请求你帮助解决这个问题，因为我不知道该怎么做。任何帮助将不胜感激。
感谢您提前提供帮助。
感谢@JoséPereda 的 ，我找到了解决问题的办法。问题是缺少 JavaFX Maven 插件和缺少 VM 参数。
这几天我一直被这个问题困扰。我在 Whosebug 和其他网站上找到并阅读了很多 post，但是 none 的解决方案对我有用。我的 Maven 项目中的 JavaFX 有问题。我使用 java 15 和 JavaFX 15.0.1。 以下是我项目中的文件： pom.xml 文件：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>Maven_javaFx</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>15</maven.compiler.source>
<maven.compiler.target>15</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>15.0.1</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-graphics </artifactId>
<version>15.0.1</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>15.0.1</version>
</dependency>
</dependencies>
</project>
这是我的 Main.java class:
package main;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("src/main/java/resources/mainH/view.fxml"));
primaryStage.setTitle("Hello World");
primaryStage.setScene(new Scene(root, 300, 275));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
这是 view.fxml 文件：
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="controllers.controller">
<children>
<Pane layoutX="200.0" layoutY="100.0" prefHeight="200.0" prefWidth="200.0">
<children>
<Button layoutX="74.0" layoutY="100.0" mnemonicParsing="false" text="Button" />
</children>
</Pane>
</children>
</AnchorPane>
这是我尝试编译代码时弹出的消息：
C:\Users\rafal\.jdks\openjdk-15\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 Community Edition 2020.2.3\lib\idea_rt.jar=64406:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2020.2.3\bin" -Dfile.encoding=UTF-8 -classpath C:\Users\rafal\Desktop\studia\Różne\Maven_javaFx\target\classes;C:\Users\rafal\.m2\repository\org\openjfx\javafx-controls.0.1\javafx-controls-15.0.1.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-controls.0.1\javafx-controls-15.0.1-win.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-graphics.0.1\javafx-graphics-15.0.1.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-graphics.0.1\javafx-graphics-15.0.1-win.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-base.0.1\javafx-base-15.0.1.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-base.0.1\javafx-base-15.0.1-win.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-fxml.0.1\javafx-fxml-15.0.1.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-fxml.0.1\javafx-fxml-15.0.1-win.jar -p C:\Users\rafal\.m2\repository\org\openjfx\javafx-base.0.1\javafx-base-15.0.1-win.jar;C:\Users\rafal\.m2\repository\org\openjfx\javafx-graphics.0.1\javafx-graphics-15.0.1-win.jar 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:64)
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:64)
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$FXHelper.main(LauncherHelper.java:1071)
Caused by: java.lang.RuntimeException: Exception in Application start method
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication(LauncherImpl.java:195)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.lang.IllegalAccessError: class com.sun.javafx.fxml.FXMLLoaderHelper (in unnamed module @0x5d7c5b47) cannot access class com.sun.javafx.util.Utils (in module javafx.graphics) because module javafx.graphics does not export com.sun.javafx.util to unnamed module @0x5d7c5b47
at com.sun.javafx.fxml.FXMLLoaderHelper.<clinit>(FXMLLoaderHelper.java:38)
at javafx.fxml.FXMLLoader.<clinit>(FXMLLoader.java:2138)
at main.Main.start(Main.java:13)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater(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(WinApplication.java:174)
... 1 more
Exception running application main.Main
我看到的大多数 post 问题都通过更改 getResource() 中的目录得到解决 method.I 尝试了该方法以及您可能在 pom 文件中看到的许多其他解决方案。我请求你帮助解决这个问题，因为我不知道该怎么做。任何帮助将不胜感激。 感谢您提前提供帮助。
感谢@JoséPereda 的