方法一
<%
response.setHeader("Cache-Control","no-cache"); //HTTP 1.1
//or response.setHeader("Cache-Control","no-store");//HTTP 1.1
response.setHeader("Pragma","no-cache"); //HTTP 1.0
response.setDateHeader ("Expires", 0); //prevents caching at the proxy server
%>

方法二
import java.text.SimpleDateFormat;
import java.util.Date;

SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy - HH:mm:ss z");
response.setHeader("Expires", dateFormat.format(new Date()));


方法三
<meta http-equiv=''Expires'' content=''-10''>
<meta http-equiv=''Pragma'' content=''No-cache''>
<meta http-equiv=''Cache-Control'', ''private''>