asp.net 页面不缓存

 Response.Expires = 0;
            Response.Buffer = true;
            Response.ExpiresAbsolute = DateTime.Now.AddSeconds(-1);
            Response.AddHeader("pragma", "no-cache");
            Response.CacheControl = "no-cache";
            //Response.Write("{\"NowTime\":\"" + DateTime.Now.ToString("MM/dd/yyyy HH:mm:ss", System.Globalization.DateTimeFormatInfo.InvariantInfo) +

 "\"}");

 context.Response.ClearContent();

 context.Response.ContentType = ("text/xml;charset=GB2312"); // 这里必须要设置，否则客户端接收不到这里写好的xml文件

context.Response.Cache.SetCacheability(HttpCacheability.NoCache); //没有缓存

 string result = CreateXmlResult(keyWord);

 context.Response.Write(result); 

context.Response.Flush(); 

 context.Response.End();

写在前台的
    <meta http-equiv="Expires" CONTENT="0"> 
    <meta http-equiv="Cache-Control" CONTENT="no-cache"> 
    <meta http-equiv="Pragma" CONTENT="no-cache">
    <%Response.Buffer = true;
      Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);
      Response.Cache.SetExpires(DateTime.Now.AddDays(-1));
      Response.Expires = 0;
      Response.CacheControl = "no-cache";
      Response.Cache.SetNoStore(); %>

最简单数据缓存

 HttpContext.Current.Cache.Insert("SimplifyEsfURL", dsURL, null, DateTime.Now.AddMinutes(1), TimeSpan.Zero);

 HttpContext.Current.Cache.Get("SimplifyEsfURL")

文件依赖缓存

Cache.CacheManager.Set(cacheName, dt, new System.Web.Caching.CacheDependency(xmlPath));