簡單看的清楚比較重要

import java.io.*;


import javax.servlet.*;


import javax.servlet.http.*;





public class CookieExample extends HttpServlet {





    public void doGet(HttpServletRequest request, HttpServletResponse response)


    throws IOException, ServletException


    {


        response.setContentType("text/html");


        PrintWriter out = response.getWriter();


        


        // print out cookies





        Cookie[] cookies = request.getCookies();


        for (int i = 0; i < cookies.length; i++) {


            Cookie c = cookies[i];


            String name = c.getName();


            String value = c.getValue();


            out.println(name + " = " + value);


        }





        // set a cookie





        String name = request.getParameter("cookieName");


        if (name != null && name.length() > 0) {


            String value = request.getParameter("cookieValue");


            Cookie c = new Cookie(name, value);


            response.addCookie(c);


        }


    }


}