Java IllegalAccessError无法运行应用程序 [英] Java IllegalAccessError can't run Application
问题描述
我正在为一个类设置我的第一个程序，但我坚持为什么我的程序在尝试调试时将无法运行.我需要怎么做才能调试此错误?
I'm setting up my first program for a class and I'm stuck on why my program won't run trying to debug. What do I need to do to debug this error?
我尝试添加库，但这似乎不起作用.
I've tried to add libraries but this didn't seem to work.
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Parent;
import javafx.scene.Scene;
import java.io.IOException;
import javafx.fxml.FXMLLoader;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import java.awt.*;
public class Main extends Application {
@Override
public void start(Stage primaryStage) {
try{
Parent root = FXMLLoader.load(getClass().getResource("Sample.fxml"));
primaryStage.setTitle("My First JavaFX GUI");
Button button= new Button("Submit Answer");
StackPane layout= new StackPane();
layout.getChildren().add(button);
Scene scene1= new Scene(layout, 300, 250);
primaryStage.setScene(scene1);
primaryStage.show();
}
catch(Exception e)
{
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
这是我的运行控制台给我的错误:
This is the error my Run Console is giving me:
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:566)
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:566)
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$2(LauncherImpl.java:195)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.IllegalAccessError: class com.sun.javafx.fxml.FXMLLoaderHelper (in unnamed module @0x41b2844d) cannot access class com.sun.javafx.util.Utils (in module javafx.graphics) because module javafx.graphics does not export com.sun.javafx.util to unnamed module @0x41b2844d
at com.sun.javafx.fxml.FXMLLoaderHelper.<clinit>(FXMLLoaderHelper.java:38)
at javafx.fxml.FXMLLoader.<clinit>(FXMLLoader.java:2056)
at Main.start(Main.java:20)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$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$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$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
Exception running application Main
Process finished with exit code 1
我希望它能够运行，但是不会，而且我真的在哪里采取行动了. 谢谢参观 ！任何帮助表示赞赏:D
I expect this to run, but it won't and I'm really stuck on where to act. Thanks for taking a look ! Any help is appreciated :D
推荐答案
将模块添加到模块路径.大多数项目只需要javafx.controls和javafx.fxml，但请检查是否需要其他软件包.
Add the modules to your modulepath. Most projects just need javafx.controls and javafx.fxml but check to see if you need other packages.
运行>编辑配置> VM选项>
Run > Edit Configuration > VM Options >
-module-path/path/to/javafx-sdk-13/lib --add-modules javafx.controls，javafx.fxml
--module-path /path/to/javafx-sdk-13/lib --add-modules javafx.controls,javafx.fxml
像这样:
另外，请确保在以下位置正确设置了SDK和项目语言级别:
Additionally make sure that your SDK and project language level is properly setup in:
文件>项目结构>项目
File > Project Structure > Project
确保在以下位置添加了OpenFX库(手动添加或使用Gradle之类的东西):
Make sure that your OpenFX library is added (either manually or with something like Gradle) in:
文件>项目结构>图书馆
File > Project Structure > Libraries
最后一件事，我认为您不是要在代码中使用import java.awt.*;.
And one last thing, I don't think you meant to import java.awt.*; in your code.
这篇关于Java IllegalAccessError无法运行应用程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
