清除缓存，php,html,jsp,asp中防止模式窗口页面不更新的情况

清除缓存，php,html,jsp,asp中防止页面不更新的情况 Code:

HTML

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);

• 缓存