开头加上
<%
//禁止Cache.
response.setHeader("Pragma","No-Cache");
response.setHeader("Cache-Control","No-Cache");
response.setDateHeader("Expires", 0);
%>
<%
//禁止Cache.
response.setHeader("Pragma","No-Cache");
response.setHeader("Cache-Control","No-Cache");
response.setDateHeader("Expires", 0);
%>
response.setDateHeader("Expires", 0);//浏览器不要缓存文档的时间为0