A.关闭浏览器B.调用HttpSession的invalidate()方法C.调用HttpSession的removeAttribute(String name)方法D.两次访问时间间隔大于定义的非活动时间间隔
A.request.getSession()B.request.getCreationTime()C.session.getCreationTime()D.response.getCreationTime()
A.request.getServletContext ()B.session.getServletContext ()C.response.getServletContext ()D.session.getApplication ()