<% //一般jsp都需要防止缓存
response.setHeader("Pragma","No-cache");
response.setHeader("Cache-Control","no-cache");
response.setDateHeader("Expires", 0);
%>
response.setHeader("Pragma","No-cache");
response.setHeader("Cache-Control","no-cache");
response.setDateHeader("Expires", 0);
%>
window.location.replace('');
<meta http-equiv="pragma" content="no-cache"> <!--每次打开窗口清除缓存-->
<meta http-equiv="Expires" content="0">