java fx控制鼠标,如何在JavaFX中获取鼠标的位置？

在JavaFX中，可以通过以下方式获取鼠标的位置：

1. 获取舞台对象

Stage stage = (Stage) scene.getWindow();

2. 添加鼠标事件监听器

scene.setOnMouseMoved(new EventHandler<MouseEvent>() {
    @Override
    public void handle(MouseEvent event) {
        double mouseX = event.getX();
        double mouseY = event.getY();
        // do something with mouseX and mouseY
    }
});

3. 在事件监听器中获取鼠标位置

double mouseX = event.getX();
double mouseY = event.getY();

完整的示例代码如下：

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;

public class MousePositionDemo extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception {
        Pane root = new Pane();
        Scene scene = new Scene(root, 400, 400);

        primaryStage.setScene(scene);
        primaryStage.show();

        scene.setOnMouseMoved(new EventHandler<MouseEvent>() {
            @Override
            public void handle(MouseEvent event) {
                double mouseX = event.getX();
                double mouseY = event.getY();
                System.out.println("Mouse position: (" + mouseX + ", " + mouseY + ")");
            }
        });
    }

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