如何在asp.net中强制清除缓存

本文介绍了如何在asp中强制清除缓存的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

如何在asp中强制清除缓存

How to force clear cache in asp

推荐答案

Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1)); Response.Cache.SetCacheability(HttpCacheability.NoCache); Response.Cache.SetNoStore();

将此代码放入页面加载。现在缓存浏览器中没有数据会尝试从serv获取页面

Put this code in page load. Now there will be no data in cache browser will try to get the page from the serv

我试试这个但是看起来不行吗 public void DisablePageCaching（） { //用于禁用页面缓存 HttpContext.Current.Response.Cache.SetExpires（ DateTime.UtcNow.AddDays（-1））; HttpContext.Current.Response.Cache.SetValidUntilExpires（false）; HttpContext.Current.Response.Cache.SetRevalidation（ HttpCacheRevalidation.AllCaches）; HttpContext.Current.Response.Cache.SetCacheability（HttpCacheability.NoCache）; HttpContext.Current.Response.Cache.SetNoStore（）; HttpContext.Current.Response.Cache.SetExpires（DateTime.Now.AddSeconds（-1））; } private void ClearCache（） { DictionaryEntry entry = default（DictionaryEntry）; foreach（System.Web.HttpContext.Current.Cache中的DictionaryEntry entry_loopVariable） { entry = entry_loopVariable; System.Web.HttpContext.Current.Cache.Remove（entry.Key.ToString（））; } IDictionaryEnumerator enumerator = HttpContext.Current.Cache.GetEnumerator（）; while（enumerator.MoveNext（）） { HttpContext.Current.Cache.Remove（enumerator.Key.ToString（））; } HttpContext.Current.Response.ClearHeaders（）; HttpContext.Current.Response.Expires = 0; HttpContext .Current.Response.CacheControl =no-cache; HttpContext.Current.Response.Cache.SetCacheability（HttpCacheability.ServerAndNoCache）; HttpContext.Current.Response。 Cache.SetNoStore（）; HttpContext.Current.Response.Buffer = true; HttpContext.Current.Response.ExpiresAbsolute = DateTime.Now.Subtract（new TimeSpan（1 ，0,0,0））; HttpContext.Current.Response.AppendHeader（Pragma，no-cac他）; HttpContext.Current.Response.AppendHeader（，）; HttpContext.Current.Response.AppendHeader（Cache-Control，no-cache）; // HTTP 1.1 HttpContext.Current.Response.AppendHeader（Cache-Control，private）; // HTTP 1.1 HttpContext.Current.Response.AppendHeader（Cache-Control，no-store）; // HTTP 1.1 HttpContext.Current.Response.AppendHeader（Cache-Control，must-revalidate）; // HTTP 1.1 HttpContext.Current.Response.AppendHeader（Cache-Control，max-stale = 0）; // HTTP 1.1 HttpContext.Current.Response.AppendHeader（Cache-Control，post-check = 0）; // HTTP 1.1 HttpContext.Current.Response.AppendHeader（Cache-Control，pre-check = 0）; // HTTP 1.1 HttpContext.Current.Response.AppendHeader（Pragma，no-cache）; // HTTP 1.1 HttpContext.Current.Response.AppendHeader（Keep-Alive，timeout = 3，max = 993）; // HTTP 1.1 } i try this but it seems not working public void DisablePageCaching() { //Used for disabling page caching HttpContext.Current.Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1)); HttpContext.Current.Response.Cache.SetValidUntilExpires(false); HttpContext.Current.Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches); HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache); HttpContext.Current.Response.Cache.SetNoStore(); HttpContext.Current.Response.Cache.SetExpires(DateTime.Now.AddSeconds(-1)); } private void ClearCache() { DictionaryEntry entry = default(DictionaryEntry); foreach (DictionaryEntry entry_loopVariable in System.Web.HttpContext.Current.Cache) { entry = entry_loopVariable; System.Web.HttpContext.Current.Cache.Remove(entry.Key.ToString()); } IDictionaryEnumerator enumerator = HttpContext.Current.Cache.GetEnumerator(); while (enumerator.MoveNext()) { HttpContext.Current.Cache.Remove(enumerator.Key.ToString()); } HttpContext.Current.Response.ClearHeaders(); HttpContext.Current.Response.Expires = 0; HttpContext.Current.Response.CacheControl = "no-cache"; HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.ServerAndNoCache); HttpContext.Current.Response.Cache.SetNoStore(); HttpContext.Current.Response.Buffer = true; HttpContext.Current.Response.ExpiresAbsolute =DateTime.Now.Subtract(new TimeSpan(1,0,0,0)); HttpContext.Current.Response.AppendHeader("Pragma", "no-cache"); HttpContext.Current.Response.AppendHeader("", ""); HttpContext.Current.Response.AppendHeader("Cache-Control", "no-cache"); //HTTP 1.1 HttpContext.Current.Response.AppendHeader("Cache-Control", "private"); // HTTP 1.1 HttpContext.Current.Response.AppendHeader("Cache-Control", "no-store"); // HTTP 1.1 HttpContext.Current.Response.AppendHeader("Cache-Control", "must-revalidate"); // HTTP 1.1 HttpContext.Current.Response.AppendHeader("Cache-Control", "max-stale=0"); // HTTP 1.1 HttpContext.Current.Response.AppendHeader("Cache-Control", "post-check=0"); // HTTP 1.1 HttpContext.Current.Response.AppendHeader("Cache-Control", "pre-check=0"); // HTTP 1.1 HttpContext.Current.Response.AppendHeader("Pragma", "no-cache"); // HTTP 1.1 HttpContext.Current.Response.AppendHeader("Keep-Alive", "timeout=3, max=993"); // HTTP 1.1 }

如果你想设置当前页面的清除缓存，那么在按钮点击和页面加载时写下面的代码，它会工作对我来说。 HttpResponse.RemoveOutputCacheItem（/ pagecontentdetail.aspx） If you want set clear cache of current page then write below code on button click as well as on page load, It will work for me. HttpResponse.RemoveOutputCacheItem("/pagecontentdetail.aspx")