JavaFx Error: Exception in Application start method
JavaFx Error: Exception in Application start method
我正在尝试使用 intelliJ IDEA 创建我的第一个 JavaFX 程序
我收到了这个错误:
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: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(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
@0x5ba89dd0) 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 @0x5ba89dd0
at com.sun.javafx.fxml.FXMLLoaderHelper.<clinit>
(FXMLLoaderHelper.java:38)
at javafx.fxml.FXMLLoader.<clinit>(FXMLLoader.java:2056)
at sample.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$runLater(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged
(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.
lambda$runLater(PlatformImpl.java:427)
at
javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run
(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop
(Native Method)
at
javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.
lambda$runLoop(GtkApplication.java:277)
... 1 more
Exception running application sample.Main
这是我的 FXML 文件:
`<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane prefHeight="386.0" prefWidth="621.0"
xmlns="http://javafx.com/javafx/8.0.172-ea"
xmlns:fx="http://javafx.com/fxml" fx:controller="sample.Controller">
<children>
<Label fx:id="m" layoutX="282.0" layoutY="192.0" text="this is a
test " />
</children>
</AnchorPane>`
main.java :
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("Main.fxml"));
primaryStage.setTitle("Hello World");
primaryStage.setScene(new Scene(root, 300, 275));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}}
这是项目结构:
project structure
我什至更改了 fxml 文件的位置,但他一直出现同样的错误。
FXML 文件和 Main.java 在同一个包中
我是Ubuntu
我找到了解决方案,我已经将 JavaFX SDK 添加到模块并修改了模块-info.java 文件,因为我正在使用 jdk 11
module project-name {
requires javafx.fxml;
requires javafx.controls;
opens sample;
}
我正在尝试使用 intelliJ IDEA 创建我的第一个 JavaFX 程序
我收到了这个错误:
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: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(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
@0x5ba89dd0) 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 @0x5ba89dd0
at com.sun.javafx.fxml.FXMLLoaderHelper.<clinit>
(FXMLLoaderHelper.java:38)
at javafx.fxml.FXMLLoader.<clinit>(FXMLLoader.java:2056)
at sample.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$runLater(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged
(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.
lambda$runLater(PlatformImpl.java:427)
at
javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run
(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop
(Native Method)
at
javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.
lambda$runLoop(GtkApplication.java:277)
... 1 more
Exception running application sample.Main
这是我的 FXML 文件:
`<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane prefHeight="386.0" prefWidth="621.0"
xmlns="http://javafx.com/javafx/8.0.172-ea"
xmlns:fx="http://javafx.com/fxml" fx:controller="sample.Controller">
<children>
<Label fx:id="m" layoutX="282.0" layoutY="192.0" text="this is a
test " />
</children>
</AnchorPane>`
main.java :
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("Main.fxml"));
primaryStage.setTitle("Hello World");
primaryStage.setScene(new Scene(root, 300, 275));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}}
这是项目结构:
project structure
我什至更改了 fxml 文件的位置,但他一直出现同样的错误。
FXML 文件和 Main.java 在同一个包中
我是Ubuntu
我找到了解决方案,我已经将 JavaFX SDK 添加到模块并修改了模块-info.java 文件,因为我正在使用 jdk 11
module project-name {
requires javafx.fxml;
requires javafx.controls;
opens sample;
}