您可以在JSP中执行以下操作prevent from caching
,从而无法以编程方式清除缓存:
<% response.setHeader("Cache-Control","no-cache"); //HTTP 1.1
response.setHeader("Pragma","no-cache"); //HTTP 1.0
response.setDateHeader ("Expires", 0); //prevents caching at the proxy server
%>