设置资产目录作为资源目录，然后从/drawIcon.png位置加载图像作为资源：

Set the assets directory as a resource directory and then load the image as a resource from the location "/drawIcon.png":

URL url = getClass().getResource("/drawIcon.png");
Image image = ImageIO.read(url);

如果你想创建一个javafx图片：

In case you want to create a javafx Image:

Image image = new Image("/drawIcon.png");

在这种情况下，同时将该文件夹标记为资源文件夹。

In this case, also, mark that folder as resource folder.

此处有更多信息： https： //docs.oracle.com/javafx/2/api/javafx/scene/image/Image.html