JavaFX控件ID：设置Label文本内容代码示例

今天药忘吃喽~ 2023-10-04 14:32 27阅读 0赞

## 最终效果 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70]  
点击按钮后label文本会发生变化：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70 1]

## 场景编辑 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70 2]  
设置label的ID：`fx:id`：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70 3]  
自动生成属性：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70 4]

## 代码 ##

### pom ###

<build>
            <finalName>HelloJavaFX</finalName>
            <resources>
                <resource>
                    
                    <directory>src/main/java</directory>
                    <includes>
                        <include>**/*.properties</include>
                        <include>**/*.fxml</include>
                        <include>**/fxml/*.fxml</include>
                        
                        
                    </includes>
                    <filtering>false</filtering>
                </resource>
            </resources>
     </build>

### fxml ###

<?xml version="1.0" encoding="UTF-8"?>
    
    <?import javafx.scene.control.*?>
    <?import javafx.scene.layout.*?>
    
    <AnchorPane prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="cn.zxl.Controller.Controller">
       <children>
          <Button layoutX="273.0" layoutY="189.0" mnemonicParsing="false" onAction="#test" text="我是按钮" />
          <Label fx:id="label2" layoutX="273.0" layoutY="151.0" text="Label" />
       </children>
    </AnchorPane>

### java代码 ###

### Controller ###

package cn.zxl.Controller;
    
    import javafx.scene.control.Label;
    
    /**
     * @Description: //TODO 控制器类
     * @Author: zhangxueliang
     * @Create: 2021-05-27 11:35
     * @Version: 1.0
     **/
    public class Controller {
        
        public Label label2;
    
        public void test(){
        
            System.out.println("点击了按钮");
            label2.setText("你点击了按钮");
        }
    }

#### 启动类 ####

package cn.zxl.Controller;
    
    import javafx.application.Application;
    import javafx.fxml.FXMLLoader;
    import javafx.scene.Parent;
    import javafx.scene.Scene;
    import javafx.stage.Stage;
    
    /**
     * @Description: //TODO 建立FXML
     * @Author: zhangxueliang
     * @Create: 2021-05-27 11:16
     * @Version: 1.0
     **/
    public class Main extends Application {
        
        @Override
        public void start(Stage primaryStage) throws Exception {
        
            Parent root = FXMLLoader.load(this.getClass().getResource("sample.fxml"));
            Scene scene = new Scene(root);
            primaryStage.setScene(scene);
            primaryStage.show();
        }
    
        public static void main(String[] args) {
        
            launch(args);
        }
    }

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70 4]: https://img-blog.csdnimg.cn/20210527114759162.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk=,size_16,color_FFFFFF,t_70