我可以强制NSURLConnection从缓存加载吗？

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我曾考虑过写一个自定义的url缓存，但似乎NSURLCache应该支持磁盘缓存。我想让我的iphone应用程序使用缓存响应，而不打到服务器，直到资源变得陈旧（由我从服务器发回的标头确定）。

我必须使用NSURLConnection打电话吗？

更新：这是一个指向我的代码的链接

pastie/808549

解决方案

不幸的是，iPhone不能使用NSURLCache进行磁盘缓存，这使得它不适合我概述的场景。

我正在滚动我自己的课程。

I had considered writing a custom url cache, but it seems that NSURLCache is supposed to support a disk cache. I'd like to have my iphone app use cached responses without hitting the server at all until the resource becomes stale (as determined by the headers I send back from the server).

Do I have to call something fancy with NSURLConnection? How can I get the iphone to use the cached version of the url?

Update: Here is a link to my code

pastie/808549

解决方案

The answer is, unfortunately, that the iPhone can't do disk caching with NSURLCache, making it inappropriate for the scenario I outlined.

I'm rolling my own class.