如何从URL对象(图像)创建文件对象

问题描述

我需要从URL对象创建一个File对象我的要求是我需要创建网络图像的文件对象(例如Google徽标)

I need to create a File object from URL objectMy requirement is I need to create a file object of a web image (say googles logo)

URL url = new URL("http://google.com/pathtoaimage.jpg");
File f = create image from url object

推荐答案

您可以使用以便从URL加载图像，然后将其写入文件.像这样:

You can make use of ImageIO in order to load the image from an URL and then write it to a file. Something like this:

URL url = new URL("http://google.com/pathtoaimage.jpg");
BufferedImage img = ImageIO.read(url);
File file = new File("downloaded.jpg");
ImageIO.write(img, "jpg", file);

如果需要，还可以将图像转换为其他格式.

This also allows you to convert the image to some other format if needed.

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