使用fxml将事件侦听器添加到Javafx中的mainScene

// Main.java
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{
        FXMLLoader loader = new FXMLLoader(getClass().getResource("main.fxml"));
        Parent root = loader.load();
        Controller controller = loader.getController();

        Scene scene = new Scene(root);
        scene.setOnKeyPressed(controller::handleKeyPress); // 添加键盘按键事件侦听器
        scene.setOnMouseClicked(controller::handleMouseClick); // 添加鼠标点击事件侦听器

        primaryStage.setTitle("JavaFX Application");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

// Controller.java
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.input.KeyEvent;
import javafx.scene.input.MouseEvent;

import java.net.URL;
import java.util.ResourceBundle;

public class Controller implements Initializable {

    @FXML
    private void handleKeyPress(KeyEvent event) {
        // 处理键盘按键事件的逻辑
    }

    @FXML
    private void handleMouseClick(MouseEvent event) {
        // 处理鼠标点击事件的逻辑
    }

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        // 初始化方法
    }
}

// main.fxml
<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.layout.VBox?>
<?import javafx.scene.control.Button?>

<VBox xmlns="http://javafx.com/javafx/16" xmlns:fx="http://javafx.com/fxml/1" fx:controller="Controller">
    <Button fx:id="button" text="Click Me" onAction="#handleButtonClick" />
</VBox>