缓存URL的内容 [英] Caching content of URL

问题描述

我有一个非常简单的用例:当远程端的内容发生更改(例如，上次修改"时更改)时，通过正确且自动的重新加载来缓存URL的内容.

I have a pretty simple use case: Cache the content of a URL with correct and automatic reloading when the content on the remote side changes (for example when "last modified" changes).

我该如何用Java做到这一点?

How can I do that in Java?

注意:我在类路径上有spring，guava和commons-lang3，但是我找不到对此的任何支持.Guava支持缓存逐出，但是无法实现每次访问检查.

Note: I have spring, guava and commons-lang3 on the classpath but I couldn't find any support for this. Guava supports cache eviction but there is no way to implement per-access checks.

推荐答案

您可以使用 HttpClient缓存.

HttpClient缓存提供了一个与HTTP/1.1兼容的缓存层，可与HttpClient一起使用-Java等效于浏览器缓存.

HttpClient Cache provides an HTTP/1.1-compliant caching layer to be used with HttpClient--the Java equivalent of a browser cache.

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