缓存控制C＃ASP.NET

Question

I have a menu on a .net page that periodically returns a 404 when clicking the link the first time you visit the page. I'm trying to set the caching to 0 on the page to eliminate server caching as a possibility for the error. Is there a way to set it in the HTML? I'm looking for Response.Expires = -1 as a page directive or something along those lines?

Answer 1

You can define a filter like this

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
public sealed class NoCacheAttribute : ActionFilterAttribute
{
    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);
    }
}

And while defining a controller you can annotation:

[NoCache]
public class ControllerBase : Controller, IControllerBase

Also you can define in particular controller action:

[OutputCache(NoStore = true, Duration = 0)]

Answer 2

将其添加到控制器内的Action方法中：

[OutputCache(NoStore = true, Duration = 0, VaryByParam = "*", Location = OutputCacheLocation.None)]