保存图片

File file = fileChooser.showSaveDialog(primaryStage.getOwner());
           
           WritableImage wImage = new WritableImage(  300,    500);
           
            try {
                ImageIO.write(SwingFXUtils.fromFXImage(wImage, null), "png", file);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                System.out.println("未选择路径，不保存");
            }