ÔÚjspÀïʹÓÃCookie

дCookie£º
   //´Óä¯ÀÀÆ÷È¡µÃÓû§Ãû
        String username = request.getParameter("username");
        //´Óä¯ÀÀÆ÷È¡µÃÃÜÂë
        String password = request.getParameter("password");
        //ÉèÖÃCookie
        Cookie userCookie = null;
        Cookie passCookie = null;
        //È¡µÃ¿Í»§¶ËµÄCookie
        //Èç¹ûusernameºÍpasswordÂú×ãÌõ¼þÔò½øÈësuccess.jsp
        if ("admin".equals(username) && "1".equals(password)) {
            userCookie = new Cookie("username", username);
            passCookie = new Cookie("password", password);
            userCookie.setMaxAge(20);
            passCookie.setMaxAge(20);
            response.addCookie(userCookie);
            response.addCookie(passCookie);
            response.sendRedirect("../success.jsp");
        }
¶ÁCookie£º
     String username = new String();
        String password = new String();
        //È¡µÃ¿Í»§¶ËµÄCookie
        Cookie[] cookies = request.getCookies();
        //Èç¹ûÈ¡µÃ³É¹¦
        if (cookies != null) {