asp.net-mvc – 防止在ASP.NET MVC中缓存属性,每次执行一个Action时强制执行属性

根据各种文章(例如 here和 here),可以缓存ASP.NET MVC操作的属性结果,并且在调用控制器操作时不再执行.

在我的情况下,这种行为是不可取的(例如,我有一个基于我自己的属性和IP的授权系统,每次都需要执行的角色检查,以及其他事情).

如何阻止ASP.NET MVC缓存我的属性/属性执行结果并保证每次都执行它们？

解决方法

protected void CacheValidateHandler( HttpContext context,object data,ref HttpValidationStatus validationStatus )
{
    validationStatus = OnCacheAuthorization( new HttpContextWrapper( context ) );
}

protected void SetCachePolicy( AuthorizationContext filterContext )
{
    // ** IMPORTANT **
    // Since we're performing authorization at the action level,the authorization code runs
    // after the output caching module. In the worst case this could allow an authorized user
    // to cause the page to be cached,then an unauthorized user would later be served the
    // cached page. We work around this by telling proxies not to cache the sensitive page,// then we hook our custom authorization code into the caching mechanism so that we have
    // the final say on whether a page should be served from the cache.
    HttpCachePolicyBase cachePolicy = filterContext.HttpContext.Response.Cache;
    cachePolicy.SetProxyMaxAge( new TimeSpan( 0 ) );
    cachePolicy.AddValidationCallback( CacheValidateHandler,null /* data */);
}

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