JavaFx, Problèmes avec @FXML

Question

Je suis nouveau en Java, je dois donc vous demander de l'aide: P. Je crée un programme très simple, mais je suis resté sur la vérification du mot de passe et la connexion à textField. Je me demande ce qui ne va pas avec ce code, pouvez-vous m'aider?

Contrôleur

package sample; 

import javafx.event.ActionEvent; 
import javafx.fxml.FXML; 
import javafx.fxml.Initializable; 
import javafx.scene.control.PasswordField; 

import java.awt.*; 

public class Controller { 
    @FXML 
    public TextField login,password; 
    public void LoginButtonClicked(ActionEvent event) 
    { 
    if(login.getText().equals("yes")&&password.getText().equals("yes")) 
     { 
      System.out.print("Congratulations"); 
     } 
    else 
     { 
      System.out.print("no"); 
     } 

    } 


} 

FXML

<?xml version="1.0" encoding="UTF-8"?> 

<?import javafx.scene.text.*?> 
<?import javafx.geometry.*?> 
<?import javafx.scene.control.*?> 
<?import java.lang.*?> 
<?import javafx.scene.layout.*?> 
<?import javafx.geometry.Insets?> 
<?import javafx.scene.layout.GridPane?> 
<?import javafx.scene.control.Button?> 
<?import javafx.scene.control.Label?> 

<BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller"> 
    <top> 
     <VBox BorderPane.alignment="CENTER"> 
     <children> 
      <MenuBar> 
       <menus> 
       <Menu mnemonicParsing="false" text="Profile"> 
        <items> 
        <MenuItem mnemonicParsing="false" text="Your Profile" /> 
         <MenuItem mnemonicParsing="false" text="Log out" /> 
         <MenuItem mnemonicParsing="false" text="Close" /> 
        </items> 
       </Menu> 
       <Menu mnemonicParsing="false" text="Help"> 
        <items> 
        <MenuItem mnemonicParsing="false" text="About program" /> 
         <MenuItem mnemonicParsing="false" text="Author" /> 
        </items> 
       </Menu> 
       </menus> 
      </MenuBar> 
      <HBox spacing="8.0"> 
       <children> 
        <TextField fx:id="login" promptText="User" />    // ERROR 
        <TextField fx:id="password" layoutX="10.0" layoutY="10.0" promptText="Password" />          //ERROR 
        <Region HBox.hgrow="ALWAYS" /> 
        <Button mnemonicParsing="false" onAction="#LoginButtonClicked" text="Log In" /> 
        <Button layoutX="329.0" layoutY="15.0" mnemonicParsing="false" text="Clear" /> 
       </children> 
       <padding> 
        <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" /> 
       </padding> 
      </HBox> 
     </children> 
     </VBox> 
    </top> 
    <center> 
     <Label alignment="CENTER" prefHeight="130.0" prefWidth="469.0" text="Log in, in order to use this program" BorderPane.alignment="CENTER"> 
     <font> 
      <Font size="25.0" /> 
     </font> 
     </Label> 
    </center> 
</BorderPane> 

Et le code d'erreur

Exception in Application start method 
Exception in thread "main" java.lang.RuntimeException: Exception in Application start method 
    at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:875) 
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$147(LauncherImpl.java:157) 
    at com.sun.javafx.application.LauncherImpl$$Lambda$1/868693306.run(Unknown Source) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: javafx.fxml.LoadException: 
/C:/Users/Michael/IdeaProjects/Endomondo/out/production/Endomondo/sample/sample.fxml:36 

    at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2595) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2573) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2435) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3208) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3169) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3142) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3118) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3098) 
    at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3091) 
    at sample.Main.start(Main.java:13) 
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$153(LauncherImpl.java:821) 
    at com.sun.javafx.application.LauncherImpl$$Lambda$50/1482523563.run(Unknown Source) 
    at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$166(PlatformImpl.java:323) 
    at com.sun.javafx.application.PlatformImpl$$Lambda$46/1674404664.run(Unknown Source) 
    at com.sun.javafx.application.PlatformImpl.lambda$null$164(PlatformImpl.java:292) 
    at com.sun.javafx.application.PlatformImpl$$Lambda$48/992465164.run(Unknown Source) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$165(PlatformImpl.java:291) 
    at com.sun.javafx.application.PlatformImpl$$Lambda$47/668291877.run(Unknown Source) 
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) 
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) 
    at com.sun.glass.ui.win.WinApplication.lambda$null$141(WinApplication.java:102) 
    at com.sun.glass.ui.win.WinApplication$$Lambda$38/1584193862.run(Unknown Source) 
    ... 1 more 
Caused by: java.lang.IllegalArgumentException: Can not set java.awt.TextField field sample.Controller.login to javafx.scene.control.TextField 
    at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167) 
    at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171) 
    at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81) 
    at java.lang.reflect.Field.set(Field.java:758) 
    at javafx.fxml.FXMLLoader.injectFields(FXMLLoader.java:1155) 
    at javafx.fxml.FXMLLoader.access$1600(FXMLLoader.java:104) 
    at javafx.fxml.FXMLLoader$ValueElement.processValue(FXMLLoader.java:853) 
    at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:747) 
    at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2701) 
    at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2521) 
    ... 22 more 

Answer 1

Votre problème est dans l'importation en classe Controller:

import java.awt.*; 

devrait être:

import javafx.scene.control.TextField; 

Les programmes tente de convertir java.awt.TextField à javafx.scene.control.TextField

Je suppose que vous souhaitez utiliser javafx, non AWTTextField

Note: ne font pas confiance aux importations quel IDE vous donne :)