Http协议:
请求:request HttpServletRequset ServletRequest
方法: request.setAttribute(键,值)//设置请求对象的值
request.getAttribute(键)//根据键获取请求对象的值
响应:response HttpServletResponse ServletResponse
方法: response.getSession//获得Sessoin对象
response.getWriter()//获得PrinterWriter对象
Cookie对象:
实例化:Cookie cookie=new Cookie(键,值)
HttpSession对象:
设置值:session.setAttribute(键,值)
获得ID:String sessionId=cookie.getAttribute(JSessionId)
Listener(监听器):
应用上下文监听器:ServletContextListener
Session监听器:SessionListener
Filter(过滤器):
初始化方法:initFiler()
pass方法:doFilter()
web容器:
注册Servlet
注册Listener
注册Filter