禁用客户端缓存
HTML
<META HTTP-EQUIV="expires" CONTENT="0">
<META HTTP-EQUIV="pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">
ASP
<%
Response.Expires = -1
Response.ExpiresAbsolute = Now() - 1
Response.cachecontrol = "no-cache"
%>
PHP
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
JSP
response.setHeader("Pragma","No-Cache");
response.setHeader("Cache-Control","No-Cache");
response.setDateHeader("Expires", 0);
C#中禁止cache的方法!
Response.Buffer=true;
Response.ExpiresAbsolute=System.DateTime.Now.AddSeconds(-1);
Response.Expires=0;
Response.CacheControl="no-cache";
要强制进行http请求其实很简单.就象csdn现在这样,在后面缀一个随机参数(该参数应该以当前时间为种子).那么无论什么类型的文件,都会重新发起http请求
<%@ OutputCache Location="None" VaryByParam="None" %>
和
Response.Buffer = true;
Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);
Response.Expires = 0;
Response.CacheControl = "no-cache";