Jsp页面禁止缓存

-----禁止缓存，这是在Servlet中

//禁止页面缓存
((HttpServletResponse)response).setHeader("Pragma","No-cache");
((HttpServletResponse)response).setHeader("Cache-Control","no-cache");
//页面过期设置，0表示已经过期
((HttpServletResponse)response).setHeader("Expires","0");