如何从fxml TextField获取文本

Question

我想从我的.fxml文件中的firstName和lastName框的文本到我的控制器。我无法弄清楚如何让这些firstName和lastName的TextField通过传递文本到控制器，所以我就可以使用它们来创建一个Person对象

FXML：

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

<?import javafx.scene.control.Button?> 
<?import javafx.scene.control.TextField?> 
<?import javafx.scene.layout.AnchorPane?> 
<?import javafx.scene.text.Text?> 

<AnchorPane id="AnchorPane" fx:id="createPersonAnchor" prefHeight="247.0" prefWidth="285.0" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1"> 
    <children> 
     <Button layoutX="171.0" layoutY="180.0" mnemonicParsing="false" onAction="#cancelCreatePersonAction" prefHeight="37.0" prefWidth="79.0" text="Cancel" /> 
     <TextField id="FirstName" fx:id="firstName" layoutX="115.0" layoutY="28.0" /> 
     <TextField id="LastName" fx:id="lastName" layoutX="115.0" layoutY="78.0" /> 
     <Button layoutX="47.0" layoutY="180.0" mnemonicParsing="false" onAction="#createPersonAction" prefHeight="37.0" prefWidth="79.0" text="Create" /> 
     <Text layoutX="29.0" layoutY="45.0" strokeType="OUTSIDE" strokeWidth="0.0" text="First Name:" wrappingWidth="69.677734375" /> 
     <Text layoutX="29.0" layoutY="95.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Last Name:" wrappingWidth="69.677734375" /> 
    </children> 
</AnchorPane> 

控制器：

package project1; 

import java.net.URL; 
import java.util.ResourceBundle; 
import javafx.event.ActionEvent; 
import javafx.fxml.FXML; 
import javafx.fxml.FXMLLoader; 
import javafx.fxml.Initializable; 
import javafx.scene.layout.AnchorPane; 

/** 
* FXML Controller class 
* 
* @author Fomnus 
*/ 
public class FXMLCreatePersonController implements Initializable { 

    /** 
    * Initializes the controller class. 
    */ 
    public FXMLCreatePersonController(){ 
     FXMLLoader loader = new FXMLLoader(getClass().getResource("FXMLCreatePerson.fxml")); 
     loader.setController(this); 
     try{ 
      loader.load(); 
     }catch(Exception e){ 
      System.out.println(e.getMessage()+ "FXMLCreatePersonController failed"); 
     } 
    } 
    @FXML AnchorPane createPersonAnchor; 
    @FXML public void setFXMLCreatePersonAnchorPane(AnchorPane fxmlCreatePerson){ 
     createPersonAnchor = fxmlCreatePerson; 
    } 
    @FXML public AnchorPane getFXMLCreatePersonAnchorPane(){ 
     return createPersonAnchor; 
    } 
    @FXML 
    private void createPersonAction(ActionEvent event) { 

    } 
    @FXML 
    private void cancelCreatePersonAction(ActionEvent event) { 
     System.out.println("Hello World"); 
    } 
    @Override 
    public void initialize(URL url, ResourceBundle rb) { 
     // TODO 
    }  

} 

Answer 1

首先你要定义一个控制器您FXML：

fx:controller=<Controller.Location> 

//Example : 
@FXML TextField textfield; 

最后你设置一个ID，以想每个节点：然后在cotroller您在初始化过程中使用注释@FXML旁边Node被初始化指的它在FXML.file ID控制（指的名字你游戏的Node：

fx:id=<idFromController> 

，并获得文：

textfield.getText();