JavaFX 加载图片（使用Intellij IDEA）

主要利用new ImageView(new Image());进行图片加载

1.通过文件方式输入

try {
    FileInputStream file = new FileInputStream(new File("F:/house.png" ));
    ImageView imageHouse = new ImageView(new Image(file));
    gridpane.add(imageHouse, 0, 0, 1, 2);
} catch (FileNotFoundException e) {
    e.printStackTrace();
}

2.直接输入url,如果是本地图片，需要在地址前加上 file:

ImageView imageHouse2 = new ImageView(new Image("file:F:/house.png"));
gridpane.add(imageHouse2, 0, 0, 1, 2);

3.加载项目下的图片，注意图片要存放在当前项目下

ImageView imageHouse2 = new ImageView(new Image("layoutsamplecss/img/house.png"));
gridpane.add(imageHouse2, 0, 0, 1, 2);

4.利用java类加载器加载

URL url = getClass().getClassLoader().getResource("layoutsamplecss/img/house.png");
ImageView imageHouse2 = new ImageView(url.toExternalForm());
gridpane.add(imageHouse2, 0, 0, 1, 2);

或

URL url = getClass().getResource("/layoutsamplecss/img/house.png");
ImageView imageHouse2 = new ImageView(url.toExternalForm());
gridpane.add(imageHouse2, 0, 0, 1, 2);