JavaFX快速入门完整代码：点击按钮显示当前系统时间示例

妖狐艹你老母 2023-10-04 14:16 52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]

## sample.fxml ##

<?xml version="1.0" encoding="UTF-8"?>
    
    <?import javafx.scene.control.*?>
    <?import java.lang.*?>
    <?import javafx.scene.layout.*?>
    <?import javafx.scene.layout.AnchorPane?>
    
    <AnchorPane prefHeight="309.0" prefWidth="349.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
       <children>
          <Button fx:id="myButton" layoutX="60.0" layoutY="73.0" mnemonicParsing="false" onAction="#showDateTime" prefHeight="23.0" prefWidth="219.0" text="Show Date Time" />
          <TextField fx:id="myTextField" layoutX="60.0" layoutY="117.0" prefHeight="23.0" prefWidth="219.0" />
       </children>
    </AnchorPane>

## sample.Controller ##

package sample;
    
    import javafx.event.ActionEvent;
    import javafx.fxml.FXML;
    import javafx.fxml.Initializable;
    import javafx.scene.control.Button;
    import javafx.scene.control.TextField;
    import java.net.URL;
    import java.text.DateFormat;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    import java.util.ResourceBundle;
    
    public class Controller implements Initializable {
        
    
        @FXML
        private Button myButton;
    
        @FXML
        private TextField myTextField;
        //更多请阅读：https://www.yiibai.com/javafx/javafx-tutorial-for-beginners.html
    
        @Override
        public void initialize(URL location, ResourceBundle resources) {
        
    
        }
    
        // When user click on myButton
        // this method will be called.
        public void showDateTime(ActionEvent event) {
        
            System.out.println("Button Clicked!");
            Date now= new Date();
            DateFormat df = new SimpleDateFormat("yyyy-dd-MM HH:mm:ss");
            String dateTimeString = df.format(now);
            // Show in VIEW
            myTextField.setText(dateTimeString);
        }
    
    
    }

## sample.Main ##

package sample;
    
    import javafx.application.Application;
    import javafx.fxml.FXMLLoader;
    import javafx.scene.Parent;
    import javafx.scene.Scene;
    import javafx.stage.Stage;
    
    public class Main extends Application {
        
    
        @Override
        public void start(Stage primaryStage) throws Exception{
        
            Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));
            primaryStage.setTitle("Hello World");
            //primaryStage.setScene(new Scene(root, 800, 600));
            primaryStage.setScene(new Scene(root));
            primaryStage.show();
        }
    
    
        public static void main(String[] args) {
        
            launch(args);
        }
    }

## 参考链接 ##

[https://www.yiibai.com/javafx/javafx-tutorial-for-beginners.html][https_www.yiibai.com_javafx_javafx-tutorial-for-beginners.html]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20210524112604776.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NzIzMDQ0MTk=,size_16,color_FFFFFF,t_70
[https_www.yiibai.com_javafx_javafx-tutorial-for-beginners.html]: https://www.yiibai.com/javafx/javafx-tutorial-for-beginners.html