How do I prevent the output of my JSP or Servlet pages from being cached by

I 've tried this code, but it cannot run.
<%
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
%>
and
<META HTTP-EQUIV="PRAGMA" CONTENT="NO-CACHE">
Anybody can help me?
thanks

Hi,
Since different browsers have different formats, this header settings may fetch your need....
<%
/** stop browser from caching */
response.setHeader("Cache-Control","no-cache,post-check=0,pre-check=0,no-cache");
response.setHeader("Pragma","no-cache");
response.setHeader("Expires","Thu,01Dec199416:00:00GMT");
%>
Regards
Collins

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