禁止本页面被缓存(html,asp,jsp,php,.net)【转】
    禁止本页面被缓存(html,asp,jsp,php,.net)  
htm网页 
<metahttp-equiv="pragma"content="no-cache"> 
<metahttp-equiv="cache-control"content="no-cache,must-revalidate"> 
<metahttp-equiv="expires"content="wed,26feb199708:21:57gmt"> 
或者<metahttp-equiv="expires"content="0"> 
asp网页 
response.expires=-1 
response.expiresabsolute=now()-1 
response.cachecontrol="no-cache" 
.net网页
response.Buffer = False
Response.CacheControl = "no-cache"
Response.AddHeader "Pragma", "no-cache"
Response.Expires=0/-1 
清除图片缓存
Response.Cache.SetCacheability(HttpCacheability.No Cache)
php网页 
header("expires:mon,26jul199705:00:00gmt"); 
header("cache-control:no-cache,must-revalidate"); 
header("pragma:no-cache"); 
jsp网页 
response.addHeader("pragma", "no-cache"); 
response.addHeader("cache-control", "no-cache,must-revalidate"); 
response.addHeader("expires", "0");