blocks|key|1665337|text|Javascript是客户端，缓存在服务器端，所以您需要回调asp.net应用程序中的一个方法，该方法返回缓存的内容。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1665338|ASP.NET的缓存接口真的很好，你可以使用缓存“键”来获得你喜欢的缓存内容。点击此处阅读更多信息：http://msdn.microsoft.com/en-us/library/ms972379.aspx|offset|length|1665339|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/ms972379.aspx^0|0|1E|1H|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Javascript is client side, the Cache is on the Server Side, so you need to do a callback to a method in your asp.net application, that returns the content of the cache.

The ASP.NET Cache API is really good, you can use Cache["Key"] to get the cached content that you like. Read more here : <a href="http://msdn.microsoft.com/en-us/library/ms972379.aspx" rel="nofollow noreferrer">http://msdn.microsoft.com/en-us/library/ms972379.aspx</a>

blocks|key|1450317|text|如果你真的想这样做，我认为调用PageMethod可能是你真正能做的最好的事情：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1450318|http://encosia.com/2008/05/29/using-jquery-to-directly-call-aspnet-ajax-page-methods/|offset|length|1450319|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|2D|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

I think calling a PageMethod may be the best you can really do, if you really want to do this:

<a href="http://encosia.com/2008/05/29/using-jquery-to-directly-call-aspnet-ajax-page-methods/" rel="nofollow noreferrer">http://encosia.com/2008/05/29/using-jquery-to-directly-call-aspnet-ajax-page-methods/</a>

blocks|key|1450400|text|System.Web.HttpContext.Current.Cache|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1450401|缓存是按应用程序域共享的，而不是按页面共享。页面只有一个用于获取当前缓存的convenience+property+of+Page.Cache，这意味着您可以从页面中的方法中只使用缓存“键”。|1450402|正如您已经注意到的，如果您在一个静态方法中，那么您没有Page实例，也没有Page.Cache属性。因此，您需要使用HttpContext.Cache。但是，等等--您也没有HttpContext实例！这没问题，当前执行的实例存储在HttpContext.Current的静态属性中。|1450403|所以-为了回答你的问题-在静态方法中，使用HttpContext.Current.Cache。顺便说一句，您还可以从那里访问Request和Response属性。|1450404|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.web.ui.page.cache.aspx|1|http://msdn.microsoft.com/en-us/library/system.web.httpcontext.cache.aspx|2|http://msdn.microsoft.com/en-us/library/system.web.httpcontext.current.aspx|3|http://msdn.microsoft.com/en-us/library/system.web.httpcontext.request.aspx|4|http://msdn.microsoft.com/en-us/library/system.web.httpcontext.response.aspx^0|0|10|0|11|Y|0|0|1M|H|1|38|J|2|0|1Q|7|3|1Y|8|4|0^^$0|@$1|2|3|4|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|14|8|@]|D|@$9|15|A|16|1|17]]|E|$]]|$1|H|3|I|5|6|7|18|8|@]|D|@$9|19|A|1A|1|1B]|$9|1C|A|1D|1|1E]]|E|$]]|$1|J|3|K|5|6|7|1F|8|@]|D|@$9|1G|A|1H|1|1I]|$9|1J|A|1K|1|1L]]|E|$]]|$1|L|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]]|M|$N|$5|O|P|Q|E|$R|S]]|T|$5|O|P|Q|E|$R|U]]|V|$5|O|P|Q|E|$R|W]]|X|$5|O|P|Q|E|$R|Y]]|Z|$5|O|P|Q|E|$R|10]]]]

<code>System.Web.HttpContext.Current.Cache</code>

Cache is shared per app domain - not per Page. Page just has a <a href="http://msdn.microsoft.com/en-us/library/system.web.ui.page.cache.aspx" rel="noreferrer">convenience property of Page.Cache</a> to get the current Cache, which means you can just do Cache["key"] from a method in a page.

As you've noticed, if you're in a static method - then you have no Page instance, and you have no Page.Cache property. So, you need to use <a href="http://msdn.microsoft.com/en-us/library/system.web.httpcontext.cache.aspx" rel="noreferrer">HttpContext.Cache</a>. But, wait - you have no HttpContext instance either! That's ok, the currently executing instance is stored at the static property of <a href="http://msdn.microsoft.com/en-us/library/system.web.httpcontext.current.aspx" rel="noreferrer">HttpContext.Current</a>.

So - to answer your question - in a static method, use HttpContext.Current.Cache. BTW, you can also access the <a href="http://msdn.microsoft.com/en-us/library/system.web.httpcontext.request.aspx" rel="noreferrer">Request</a> and <a href="http://msdn.microsoft.com/en-us/library/system.web.httpcontext.response.aspx" rel="noreferrer">Response</a> properties from there.

How would you access the cache from a jQuery ajax call? 

I'm using jquery to do some data verification and quick data access. I have a static web-method that jquery is calling via json to return a value. I don't want to call to the database everytime so I'd like to cache the data I'm hitting, but I can't determine how to call the asp.net cache from within javascript, or a static method.

I'd like to send the page object through to the static method, which would allow me to access page.cache, but don't know how. Barring that, maybe a way to access the cache from javascript itself?

Is there a way to access a cache or session from a static method?

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如何从jQuery ajax调用访问缓存？我正在使用jquery进行一些数据验证和快速数据访问。我有一个静态的web方法，jquery通过json调用它来返回值。我不想每次都调用数据库，所以我想缓存我命中的数据，但我不能确定如何从javascript或静态方法中调用asp.net缓存。我希望将页面对象发送到静态方法，这...

问有没有办法从静态方法访问缓存或会话？
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