html asp php java 清除缓存

HTML页面

<META HTTP-EQUIV="pragma"
CONTENT="no-cache">
<META HTTP-EQUIV="Cache-Control"
CONTENT="no-cache, must-revalidate">
<META
HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57
GMT">
或者<META HTTP-EQUIV="expires"
CONTENT="0">

ASP网页
Response.Expires = -1
Response.ExpiresAbsolute = Now() -
1
Response.cachecontrol = "no-cache"

PHP网页
header("Expires: Mon, 26 Jul 1997 05:00:00
GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma:
no-cache");

JSP网页
response.setHeader("Pragma",
"No-cache");
response.setHeader("Cache-Control",
"no-cache");
response.setDateHeader("Expires", 1);

html asp php java 清除缓存