jsp中cookies的使用以及代码实例

下面是一个jsp中cookies的使用实例代码

<%@page contentType="text/html" pageEncoding="GBK"%>
<%@page import="javax.servlet.http.Cookie,java.util.*"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">

<html>
     <head>
         <meta http-equiv="Content-Type" content="text/html; charset=GBK">
         <title>JSP Page</title>
     </head>
     <body>
         <%
             //String CookiesName="username";
             //Cookie cookie_username=new Cookie("username",CookiesName);
             //response.addCookie(cookie_username);
             int click=0;

             Cookie[] cookies=request.getCookies();
             Cookie cookie_reponse=null;
             List list=Arrays.asList(cookies);
             Iterator it=list.iterator();
             while(it.hasNext()){
                 Cookie temp=(Cookie)it.next();
                  if(temp.getName().equals("clicktimes")){
                    click=Integer.parseInt(temp.getValue());
                      cookie_reponse=temp;
                      break;
                 }
             }
             //取得了click的值

             //输出
             out.println("第 " click " 次刷新");

             //更新
             clickclick=click 1;
              if(cookie_reponse==null){
                 //空的
                 cookie_reponse=new Cookie("clicktimes", String.valueOf(click));
              }else{
                 cookie_reponse.setValue(String.valueOf(click));
             }
             response.addCookie(cookie_reponse);
             response.setContentType("text/html");
             response.flushBuffer();
         %>
    </body>
</html>

补充：Web开发 , Jsp ,