So hello, I develop an application with javafx but i my application start and after close. I search a solution ... i add "/" in my declaration fxml but no work ... Everything was going well until I connected the controller to the Main file. Here's my code:
file MainController
package sample.controller;
import javafx.fxml.Initializable;
import java.net.URL;
import java.util.ResourceBundle;
import sample.view.*;
public class MainController implements Initializable {
@Override
public void initialize(URL url, ResourceBundle resourceBundle) {
System.out.print("Hello");
}
}
file MainApp
package sample;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class MainApp extends Application {
@Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("view/sample.fxml"));
primaryStage.setTitle("Jeu de Dames");
primaryStage.setResizable(false);
primaryStage.setScene(new Scene(root, 640, 640));
primaryStage.show();
primaryStage.centerOnScreen();
}
public static void main(String[] args) {
launch(args);
}
}
and file in package view
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.Pane?>
<?import javafx.scene.layout.RowConstraints?>
<Pane maxHeight="640.0" maxWidth="640.0" minHeight="-Infinity" minWidth="-Infinity" prefHeight="640.0" prefWidth="640.0"
xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.controller.MainController"
>
<children>
<GridPane layoutX="0" layoutY="0" prefHeight="640.0" prefWidth="640.0"
style="-fx-background-image: url('file:/Users/sofiangherabi/IdeaProjects/dames/assets/wood-board_d200.png');"
>
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0"/>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0"/>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0"/>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0"/>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0"/>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0"/>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0"/>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0"/>
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES"/>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES"/>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES"/>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES"/>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES"/>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES"/>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES"/>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES"/>
</rowConstraints>
</GridPane>
</children>
</Pane>
module :
module sample {
requires javafx.fxml;
requires javafx.controls;
requires transitive javafx.base;
requires transitive javafx.graphics;
exports sample to javafx.graphics;
opens sample to javafx.fxml;
}
and my error in compilator
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$2(LauncherImpl.java:195)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: javafx.fxml.LoadException:
/Users/sofiangherabi/IdeaProjects/dames/out/production/dames/sample/view/sample.fxml:10
at javafx.fxml/javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2625)
at javafx.fxml/javafx.fxml.FXMLLoader.access$700(FXMLLoader.java:105)
at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:943)
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$ValueElement.processStartElement(FXMLLoader.java:752)
at javafx.fxml/javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2722)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2552)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2466)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3237)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3194)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3163)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3136)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3113)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3106)
at sample/sample.MainApp.start(MainApp.java:13)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$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)
Caused by: java.lang.IllegalAccessException: class javafx.fxml.FXMLLoader$ValueElement (in module javafx.fxml) cannot access class sample.controller.MainController (in module sample) because module sample does not export sample.controller to module javafx.fxml
at java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:361)
at java.base/jdk.internal.reflect.Reflection.ensureMemberAccess(Reflection.java:99)
at java.base/java.lang.Class.newInstance(Class.java:579)
at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:936)
... 19 more
Exception running application sample.MainApp
opens sample to javafx.fxml;
sample is not the package that contains the controller. For this reason the above line does not provide javafx.fxml with the required reflective access to the controller class. You need to put the package of the controller in this line instead:
opens sample.controller to javafx.fxml;
(If there are classes in the sample package FXMLLoader needs access to, you need to keep the old line too of course.)