jsp取消缓存
<META HTTP-EQUIV="pragma" CONTENT="no-cache"><META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">
<META HTTP-EQUIV="expires" CONTENT="Mon, 23 Jan 1978 20:52:30 GMT">
<%
response.setHeader("Pragma","No-Cache");
response.setHeader("Cache-Control","No-Cache");
response.setDateHeader("Expires", 0);
%>
取消息图片缓存:
<img src="path?随机参数">
页:
[1]