C#CookieHelper--C#操作Cookie的幫助類

下面是代碼大家看一下

[csharp]
// <summary>  
/// 類說明：CookieHelper  
/// 聯系方式：361983679    
/// 更新網站：<a href=\"http://www.cckan.net/thread-655-1-1.html\" target=\"_blank\">http://www.cckan.net/thread-655-1-1.html</a>  
/// </summary>  
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>  
        /// 獲取指定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>  
        /// 添加一個Cookie（24小時過期）  
        /// </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>  
        /// 添加一個Cookie  
        /// </summary>  
        /// <param name="cookiename">cookie名</param>  
        /// <param name="cookievalue">cookie值</param>  
        /// <param name="expires">過期時間 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); 
        } 
    } 
} 

// <summary>
/// 類說明：CookieHelper
/// 聯系方式：361983679 
/// 更新網站：<a href=\"http://www.cckan.net/thread-655-1-1.html\" target=\"_blank\">http://www.cckan.net/thread-655-1-1.html</a>
/// </summary>
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>
        /// 獲取指定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>
        /// 添加一個Cookie（24小時過期）
        /// </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>
        /// 添加一個Cookie
        /// </summary>
        /// <param name="cookiename">cookie名</param>
        /// <param name="cookievalue">cookie值</param>
        /// <param name="expires">過期時間 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);
        }
    }
}