html/jsp 去除页面缓存
有两种方法可用
1.在html的head标签内加如下内容：
<meta http-equiv="pragma" content="no-cache" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="0" />
2.在jsp页面添加如下java代码：
<%
response.setHeader("Pragma","no-cache");
response.setHeader("Cache-Control","no-cache");
response.setDateHeader("Expires", 0);
%>