Controller nullPointer Exception

**francky74** · 25/10/2016, 23h42

Bonjour,

Je me trouve avec un controller null mais je ne comprends pas pourquoi car mon loader lui n'est pas null !

Ce problème survient alors que j'ai ajouté un tabPane dans le RootLayout.fxml.

Quelqu'un saurait-il m'aiguiller s'il vous plaît ?

Cette exception se produit à la ligne 89 de ma classe MainApp.java :

Code :

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package saubens.ecole.adherents;
 
import java.io.IOException;
 
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;
import saubens.ecole.adherents.model.Eleve;
import saubens.ecole.adherents.model.Elu;
import saubens.ecole.adherents.model.Personne;
import saubens.ecole.adherents.model.Professeur;
import saubens.ecole.adherents.view.PersonneOverviewControleur;
import saubens.ecole.adherents.view.beans.AdherentsOverviewBean;
 
public class MainApp extends Application {
 
	private Stage primaryStage;
	private BorderPane rootLayout;
 
 
	// The data as an observable list of Personne
	private ObservableList<AdherentsOverviewBean> personnes = FXCollections.observableArrayList();
	public ObservableList<AdherentsOverviewBean> getPersonnes() {return personnes;}
 
	//CONSTRUCTEUR
	public MainApp() {
		// Add some sample data
		Elu elu1 = new Elu("Calestroupat", "prenom1", 35, 1, null, null, null, null, null, null, "PRESIDENT");
		Elu elu2 = new Elu("nom2", "prenom2", 43, 6, null, null, null, null, null, null, "TRESORIER");
		Professeur prof1 = new Professeur("nom3", "prenom3", 42, 2, null, null, null, null, null, null, "BATTERIE", "SOLFEGE");
		Professeur prof2 = new Professeur("nom4", "prenom4", 17, 2, null, null, null, null, null, null, "PIANO", null);
		Eleve el1 = new Eleve("nom5", "prenom5", 42, 2, null, null, null, null, null, null, "BATTERIE");
		Eleve el2 = new Eleve("nom6", "prenom6", 37, 4, null, null, null, null, null, null, "PIANO");
 
		personnes.add(elu1.getBean());
		personnes.add(elu2.getBean());
		personnes.add(prof1.getBean());
		personnes.add(prof2.getBean());
		personnes.add(el1.getBean());
		personnes.add(el2.getBean());
	}
 
	@Override
	public void start(Stage primaryStage) {
		this.primaryStage = primaryStage;
		this.primaryStage.setTitle("Ecole de musique de Saubens");
 
		initRootLayout();
 
		showAdherentsOverview();
	}
 
	// Initializes the root layout.
	public void initRootLayout() {
		try {
			// Load root layout from fxml file.
			FXMLLoader loader = new FXMLLoader();
			loader.setLocation(MainApp.class.getResource("view/RootLayout.fxml"));
 
			rootLayout = (BorderPane) loader.load();
 
			// Show the scene containing the root layout.
			Scene scene = new Scene(rootLayout);
			primaryStage.setScene(scene);
			primaryStage.show();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
 
	// Shows the adherents overview inside the root layout.
	public void showAdherentsOverview() {
		try {
			// Load adherents overview.
			FXMLLoader loader = new FXMLLoader();
			loader.setLocation(MainApp.class.getResource("view/AdherentsOverview.fxml"));
			AnchorPane adherentsOverview = (AnchorPane) loader.load();
 
			// Set adherents overview into the center of root layout.
			rootLayout.setCenter(adherentsOverview);
 
			 // Give the controller access to the main app.
			PersonneOverviewControleur controleur = loader.getController();
			controleur.setMainApp(this);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
 
	// Returns the main stage.
	public Stage getPrimaryStage() {
		return primaryStage;
	}
 
	public static void main(String[] args) {
		launch(args);
	}
}

et voici la AdherentsOverviewLayout.fxml :

Code XML :

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<?xml version="1.0" encoding="UTF-8"?>
 
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ButtonBar?>
<?import javafx.scene.control.CheckBox?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.SplitPane?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.Pane?>
<?import javafx.scene.layout.RowConstraints?>
 
<AnchorPane prefHeight="600.0" prefWidth="800.0" xmlns="http://javafx.com/javafx/8.0.72" xmlns:fx="http://javafx.com/fxml/1">
   <children>
      <SplitPane dividerPositions="0.5" layoutX="87.0" layoutY="193.0" prefHeight="600.0" prefWidth="800.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
        <items>
          <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0">
               <children>
                  <Pane layoutX="57.0" layoutY="33.0" prefHeight="90.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                     <children>
                        <CheckBox layoutX="9.0" layoutY="9.0" mnemonicParsing="false" text="Eleves" />
                        <CheckBox layoutX="9.0" layoutY="36.0" mnemonicParsing="false" text="Professeurs" />
                        <CheckBox layoutX="9.0" layoutY="66.0" mnemonicParsing="false" text="Bureau" />
                     </children>
                  </Pane>
                  <TableView fx:id="personneTable" layoutX="17.0" layoutY="208.0" prefWidth="200.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="90.0">
                    <columns>
                      <TableColumn minWidth="80.0" prefWidth="100.0" text="Nom" />
                      <TableColumn minWidth="50.0" prefWidth="75.0" text="Prenom" />
                        <TableColumn minWidth="50.0" prefWidth="90.0" text="Instrument" />
                        <TableColumn minWidth="50.0" text="Fonction" />
                        <TableColumn minWidth="50.0" prefWidth="75.0" text="Matière" />
                    </columns>
                  </TableView>
               </children>
            </AnchorPane>
          <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0">
               <children>
                  <GridPane layoutX="98.0" layoutY="171.0" prefHeight="427.0" prefWidth="385.0" AnchorPane.bottomAnchor="121.0" AnchorPane.leftAnchor="5.0" AnchorPane.rightAnchor="5.0" AnchorPane.topAnchor="50.0">
                    <columnConstraints>
                      <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 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>
                     <children>
                        <Label text="Nom" />
                        <Label text="Label" GridPane.columnIndex="1" />
                        <Label text="Prénom" GridPane.rowIndex="1" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="1" />
                        <Label text="Adresse" GridPane.rowIndex="2" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="2" />
                        <Label text="Email" GridPane.rowIndex="3" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="3" />
                        <Label text="Tel 1" GridPane.rowIndex="4" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="4" />
                        <Label text="Tel 2" GridPane.rowIndex="5" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="5" />
                        <Label text="Genre" GridPane.rowIndex="6" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="6" />
                        <Label text="Age" GridPane.rowIndex="7" />
                        <Label text="Date naissance" GridPane.rowIndex="8" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="7" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="8" />
                        <Label text="Instrument" GridPane.rowIndex="10" />
                        <Label text="Matière" GridPane.rowIndex="11" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="9" />
                        <Label text="Ancienneté" GridPane.rowIndex="9" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="10" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="11" />
                        <Label text="Fonction" GridPane.rowIndex="12" />
                        <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="12" />
                     </children>
                  </GridPane>
                  <ButtonBar layoutX="169.0" layoutY="536.0" prefHeight="40.0" prefWidth="326.0" AnchorPane.bottomAnchor="5.0" AnchorPane.rightAnchor="5.0">
                    <buttons>
                      <Button mnemonicParsing="false" text="Nouveau" />
                        <Button mnemonicParsing="false" text="Editer" />
                        <Button mnemonicParsing="false" text="Supprimer" />
                    </buttons>
                  </ButtonBar>
               </children></AnchorPane>
        </items>
      </SplitPane>
   </children>
</AnchorPane>

Et la RootLayout.fxml :

Code XML :

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<?xml version="1.0" encoding="UTF-8"?>
 
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ButtonBar?>
<?import javafx.scene.control.CheckBox?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.Menu?>
<?import javafx.scene.control.MenuBar?>
<?import javafx.scene.control.MenuItem?>
<?import javafx.scene.control.SplitPane?>
<?import javafx.scene.control.Tab?>
<?import javafx.scene.control.TabPane?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.Pane?>
<?import javafx.scene.layout.RowConstraints?>
 
<BorderPane prefHeight="700.0" prefWidth="800.0" xmlns="http://javafx.com/javafx/8.0.72" xmlns:fx="http://javafx.com/fxml/1" fx:controller="saubens.ecole.adherents.view.PersonneOverviewControleur">
   <top>
      <MenuBar BorderPane.alignment="CENTER">
        <menus>
          <Menu mnemonicParsing="false" text="File">
            <items>
              <MenuItem mnemonicParsing="false" text="Close" />
            </items>
          </Menu>
          <Menu mnemonicParsing="false" text="Edit">
            <items>
              <MenuItem mnemonicParsing="false" text="Delete" />
            </items>
          </Menu>
          <Menu mnemonicParsing="false" text="Help">
            <items>
              <MenuItem mnemonicParsing="false" text="About" />
            </items>
          </Menu>
        </menus>
      </MenuBar>
   </top>
   <center>
      <TabPane prefHeight="200.0" prefWidth="200.0" tabClosingPolicy="UNAVAILABLE" BorderPane.alignment="CENTER">
        <tabs>
          <Tab text="Répertoire">
               <content>
                  <AnchorPane prefHeight="600.0" prefWidth="800.0">
                     <children>
                        <SplitPane dividerPositions="0.5" layoutX="87.0" layoutY="193.0" prefHeight="600.0" prefWidth="800.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                           <items>
                              <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0">
                                 <children>
                                    <Pane layoutX="57.0" layoutY="33.0" prefHeight="90.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                                       <children>
                                          <CheckBox layoutX="9.0" layoutY="9.0" mnemonicParsing="false" text="Eleves" />
                                          <CheckBox layoutX="9.0" layoutY="36.0" mnemonicParsing="false" text="Professeurs" />
                                          <CheckBox layoutX="9.0" layoutY="66.0" mnemonicParsing="false" text="Bureau" />
                                       </children>
                                    </Pane>
                                    <TableView fx:id="personneTable" layoutX="17.0" layoutY="208.0" prefWidth="200.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="90.0">
                                       <columns>
                                          <TableColumn fx:id="nomColumn" minWidth="80.0" prefWidth="100.0" text="Nom" />
                                          <TableColumn fx:id="prenomColumn" minWidth="50.0" prefWidth="75.0" text="Prenom" />
                                          <TableColumn fx:id="instrumentColumn" minWidth="50.0" prefWidth="90.0" text="Instrument" />
                                          <TableColumn fx:id="fonctionColumn" minWidth="50.0" text="Fonction" />
                                          <TableColumn fx:id="matiereColumn" minWidth="50.0" prefWidth="75.0" text="Matière" />
                                       </columns>
                                    </TableView>
                                 </children>
                              </AnchorPane>
                              <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0">
                                 <children>
                                    <GridPane layoutX="98.0" layoutY="171.0" prefHeight="427.0" prefWidth="385.0" AnchorPane.bottomAnchor="121.0" AnchorPane.leftAnchor="5.0" AnchorPane.rightAnchor="5.0" AnchorPane.topAnchor="50.0">
                                       <columnConstraints>
                                          <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 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>
                                       <children>
                                          <Label text="Nom" />
                                          <Label text="Label" GridPane.columnIndex="1" />
                                          <Label text="Prénom" GridPane.rowIndex="1" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="1" />
                                          <Label text="Adresse" GridPane.rowIndex="2" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="2" />
                                          <Label text="Email" GridPane.rowIndex="3" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="3" />
                                          <Label text="Tel 1" GridPane.rowIndex="4" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="4" />
                                          <Label text="Tel 2" GridPane.rowIndex="5" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="5" />
                                          <Label text="Genre" GridPane.rowIndex="6" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="6" />
                                          <Label text="Age" GridPane.rowIndex="7" />
                                          <Label text="Date naissance" GridPane.rowIndex="8" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="7" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="8" />
                                          <Label text="Instrument" GridPane.rowIndex="10" />
                                          <Label text="Matière" GridPane.rowIndex="11" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="9" />
                                          <Label text="Ancienneté" GridPane.rowIndex="9" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="10" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="11" />
                                          <Label text="Fonction" GridPane.rowIndex="12" />
                                          <Label text="Label" GridPane.columnIndex="1" GridPane.rowIndex="12" />
                                       </children>
                                    </GridPane>
                                    <ButtonBar layoutX="169.0" layoutY="536.0" prefHeight="40.0" prefWidth="326.0" AnchorPane.bottomAnchor="5.0" AnchorPane.rightAnchor="5.0">
                                       <buttons>
                                          <Button mnemonicParsing="false" text="Nouveau" />
                                          <Button mnemonicParsing="false" text="Editer" />
                                          <Button mnemonicParsing="false" text="Supprimer" />
                                       </buttons>
                                    </ButtonBar>
                                 </children>
                              </AnchorPane>
                           </items>
                        </SplitPane>
                     </children>
                  </AnchorPane>
               </content>
          </Tab>
          <Tab text="Budget" />
        </tabs>
      </TabPane>
   </center>
</BorderPane>

Merci,

**bouye** · 26/10/2016, 04h01

Ben AdherentsOverviewLayout.fxml n'a justement pas de contrôleur :

Code XML :

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<AnchorPane prefHeight="600.0" prefWidth="800.0" xmlns="http://javafx.com/javafx/8.0.72" xmlns:fx="http://javafx.com/fxml/1">

**francky74** · 26/10/2016, 11h39

Effectivement, il fallait donc le mettre dans le fxml !

Merci !

Controller nullPointer Exception

JavaFX

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