如何清除jsp页面缓存、cookie、session

一、清除页面缓存
        在jsp页里：
                    <%

                         response.setHeader("Pragma","No-cache"); 
                          response.setHeader("Cache-Control","no-cache"); 
                          response.setDateHeader("Expires", 0); 
                          response.flushBuffer();

                    %>

        在html页里：
                        <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
                        <META HTTP-EQUIV="Pragma" CONTENT="no-cache"> 
                        <META HTTP-EQUIV="Cache-Control" CONTENT="no-cache"> 
                        <META HTTP-EQUIV="Expires" CONTENT="0">

二、清除cookie

<%   
          Cookie killMyCookie = new Cookie("mycookie", null);   
          killMyCookie.setMaxAge(0);   
          killMyCookie.setPath("/");   
          response.addCookie(killMyCookie);   
%>

三、清除session
页面载入时清除session：
<%@ page language="java" %>   
<%   
session.invalidate();   
%>  
页面关闭时清除session，需要捕获windows.onclose事件，再调用清除session方法。