Prevent caching on ASP MVC site running on IIS 7.5
I have an ASP MVC 3 site running on IIS 7.5 and I cant prevent it from caching.
I have disabled the output caching in IIS by adding a '* Do Not Cache' entry to the website and also added an action filter on the controller on result execute that prevents caching too (see code below) but when I use the site, it's still caching. I have deleted all history and cookies etc from Internet Explorer and Firefox but I still see old data.
Does anyone have any ideas or suggestions on what else I can 开发者_Python百科do to try and prevent this?
Thanks in advance,
James
UPDATE
I have dug further using the SQL profiler and it seems to be the SQL server caching the query. Could this be the case?
2nd UPDATE
I now know if definitley NOT SQL caching, now looking at IIS and MVC
SOLVED!!!
It was NHibernate!
It was using the same session for every call rather than a session per request.
public override void OnResultExecuting(ResultExecutingContext filterContext)
{
filterContext.HttpContext.Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1));
filterContext.HttpContext.Response.Cache.SetValidUntilExpires(false);
filterContext.HttpContext.Response.Cache.SetRevalidation (HttpCacheRevalidation.AllCaches);
filterContext.HttpContext.Response.Cache.SetCacheability(HttpCacheability.NoCache);
filterContext.HttpContext.Response.Cache.SetNoStore();
base.OnResultExecuting(filterContext);
}
you could try adding OutputCach attribute to the action and set the duration to a couple seconds. Ex: [OutputCache(Duration=1, VaryByParam = "none")]
Are you calling your MVC action via JQuery ajax? If so, see this: http://www.peteonsoftware.com/index.php/2010/08/20/the-importance-of-jquery-ajaxsetup-cache/
It's not as simple as the problem being in the browser cache itself is it? try adding a no-cache meta tag?
<HTML><HEAD>
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Expires" CONTENT="-1">
</HEAD><BODY>
</BODY>
</HTML>
Just a thought, also you can set the no-cache header. Maybe use Fiddler to check the browsers not caching the response.
SOLVED!!!
It was NHibernate!
It was using the same session for every call rather than a session per request.
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