亚马逊多久更新一次其产品图片 URL？
我正在设计一个 Web 应用程序，它使用 Amazon 产品 api 来检索图书信息。我正在存储图像的网址和其他信息以便更快地检索。但是，我不知道亚马逊更新/无效其图像网址的频率。
I am designing a web app that use Amazon product apis to retrieve books info. I am storing images' url and other info for faster retrieval. But, I don't know how often Amazon updates/invalidate its images's urls.
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有多种方法可以仅使用 ASIN 来获取图像。您不必缓存。这是一个示例 URL。
http://images.amazon.com/images/P/ASIN。 01.MZZZZZZ.jpg
只需替换产品的ASIN即可。有关图像的更多信息，请查看 http://aaugh.com/imageabuse.html
There are ways to get the image just using the ASIN. You don't have to cache. Here is an example URL.
http://images.amazon.com/images/P/ASIN.01.MZZZZZZ.jpg
Just replace ASIN for the product. For more information about images, take a look at http://aaugh.com/imageabuse.html
这些图像更改的频率并不取决于亚马逊，而完全取决于出版商。
我在一家出版社工作，我可以根据个人经验告诉你，书籍封面在印刷之前可能会经常更换。一旦它作为实体产品提供（即不再预订），它将保持不变，直到下一版本发布。
How often these images change is not up to Amazon but depends entirely on the publishers.
I work for a publishing house and I can tell you from personal experience that a book cover can change quite frequently before going into print. Once it's available as physical product though (i.e. no more pre-order), it will remain the same until the next edition is published.