JavaFX - 如何将图像保存到文件

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javafx.application.Application;
import javafx.embed.swing.SwingFXUtils;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

import javax.imageio.ImageIO;

public class Main extends Application {
  public static void main(String[] args) {
    Application.launch(args);
  }

  @Override
  public void start(Stage stage) {
    String imagePath = "resources/picture/yourImage.jpg";
    Image image = new Image(imagePath);

    ImageView imageView = new ImageView(image);

    Button saveBtn = new Button("Save Image");
    saveBtn.setOnAction(e -> saveToFile(image));

    VBox root = new VBox(10, imageView, saveBtn);
    Scene scene = new Scene(root);
    stage.setScene(scene);
    stage.setTitle("");
    stage.show();
  }

  public static void saveToFile(Image image) {
    File outputFile = new File("C:/JavaFX/");
    BufferedImage bImage = SwingFXUtils.fromFXImage(image, null);
    try {
      ImageIO.write(bImage, "png", outputFile);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
}