关于cookies

 Cookie[] cookies = this.getRequest().getCookies();
          //遍历所有的cookie,然后根据cookie的key值来获取value值
            if (cookies!=null) {
                String JSESSIONID="";
                for (Cookie cookie : cookies) {
                    if (cookie.getName().equals("JSESSIONID")) {
                          JSESSIONID = cookie.getValue();
                        System.out.println(JSESSIONID);
                    }
                }
            }