delphi - 有人知道 TIdHTTP 的缓存组件吗？

Question

我正在寻找用于检查特定资源的 Indy IdHTTP 组件的缓存实现，在执行实际 GET 并返回缓存的资源之前（如果合适）？

如果组件是 TIdHTTP 的派生类并自动处理缓存功能，这对我来说是最简单的方法，所以我可以用新组件替换现有的 IdHTTP 对象。

有人见过D2010这样的组件吗？

Answer 1

I dont think there is a component to do that, but you can implement your own based on response header Cache-Control and Expires-Date (i am not sure if it is the corrent name). You should save the page on a file with the Expires date on it, so you can check if you already have the page on cache before make the request to the server. I guess it is what some proxies do, like Squid (of course not as simple as that).

Check this out: Caching in HTTP