cookie存取:
存: Cookie cookie = new Cookie("title",URLEncoder.encode("标题","utf-8"))
cookie.setMaxAge(365 * 24 * 60 * 60);
response.addCookie(cookie);
取: Cookie[] cookies = request.getCookies();
Cookie sCookie = null;
String cookievalue="";
for(int i = 0; i < cookies.length; i++){
sCookie = cookies[i];
if(sCookie.getName()!=null&&sCookie.getName().equals("title"))
cookievalues=URLDecoder.decode(sCookie.getValue(),"utf-8");
}