在cs类中
获取cookie
若为null则添加
否则修改原cookie值
引用http://blog.sina.com.cn/s/blog_5ff9cc430100i17c
CookiesHelper操作类
在HttpResponse response = HttpContext.Current.Response;
总是null
该类 后来继承了 System.Web.UI.Page
一样不行
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我的想法是程序变动塞值
页面js 秒判 值是否变动
否则刷新该页面
现在测试在aspx 的类文件中 添加没问题
只是在单纯的cs类文件中 的操作 报HttpContext.Current.Response=null
页面js 的秒判 cookie值 也能获得
求达人释疑
单纯的cs类文件 操作cookie为何不行
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http://www.cnblogs.com/zhongweiv/archive/2011/11/08/Cookies
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HttpContext.Current.Request.Cookies[x]
得到
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HttpContext.Current.Response.Cookies.Set(New HttpCookie("baidu"))
如果 cookie》baidu 已存在 自动覆盖 否则新增
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c# 是
- C# code
HttpContext.Current.Response.Cookies.Set(new HttpCookie("baidu"));
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HttpCookie cookie = HttpContext.Current.Request.Cookies[cookieName];
Response.Cookies换了页面就没有了
不是早告诉你了吗
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Request.Cookies 和 Response.Cookies 的区别
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- C# code
using System;using System.Web;namespace DotNet.Utilities{ public class CookieHelper { /// <summary> /// 清除指定Cookie /// </summary> /// <param name="cookiename">cookiename</param> public static void ClearCookie(string cookiename) { HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiename]; if (cookie != null) { cookie.Expires = DateTime.Now.AddYears(-3); HttpContext.Current.Response.Cookies.Add(cookie); } } /// <summary> /// 获取指定Cookie值 /// </summary> /// <param name="cookiename">cookiename</param> /// <returns></returns> public static string GetCookieValue(string cookiename) { HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiename]; string str = string.Empty; if (cookie != null) { str = cookie.Value; } return str; } /// <summary> /// 添加一个Cookie（24小时过期） /// </summary> /// <param name="cookiename"></param> /// <param name="cookievalue"></param> public static void SetCookie(string cookiename, string cookievalue) { SetCookie(cookiename, cookievalue, DateTime.Now.AddDays(1.0)); } /// <summary> /// 添加一个Cookie /// </summary> /// <param name="cookiename">cookie名</param> /// <param name="cookievalue">cookie值</param> /// <param name="expires">过期时间 DateTime</param> public static void SetCookie(string cookiename, string cookievalue, DateTime expires) { HttpCookie cookie = new HttpCookie(cookiename) { Value = cookievalue, Expires = expires }; HttpContext.Current.Response.Cookies.Add(cookie); } }}
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HttpCookie cookie = HttpContext.Current.Request.Cookies[cookieName];