时间:2021-05-28
复制代码 代码如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Data;
using System.Configuration;
namespace Jhgl.Smart
{
/// <summary>
/// Cookie操作类
/// </summary>
public class Cookie
{
/// <summary>
/// 保存一个Cookie
/// </summary>
/// <param name="CookieName">Cookie名称</param>
/// <param name="CookieValue">Cookie值</param>
/// <param name="CookieTime">Cookie过期时间(小时),0为关闭页面失效</param>
public static void SaveCookie(string CookieName, string CookieValue, double CookieTime)
{
HttpCookie myCookie = new HttpCookie(CookieName);
DateTime now = DateTime.Now;
myCookie.Value = CookieValue;
if (CookieTime != 0)
{
//有两种方法,第一方法设置Cookie时间的话,关闭浏览器不会自动清除Cookie
//第二方法不设置Cookie时间的话,关闭浏览器会自动清除Cookie ,但是有效期
//多久还未得到证实。
myCookie.Expires = now.AddDays(CookieTime);
if (HttpContext.Current.Response.Cookies[CookieName] != null)
HttpContext.Current.Response.Cookies.Remove(CookieName);
HttpContext.Current.Response.Cookies.Add(myCookie);
}
else
{
if (HttpContext.Current.Response.Cookies[CookieName] != null)
HttpContext.Current.Response.Cookies.Remove(CookieName);
HttpContext.Current.Response.Cookies.Add(myCookie);
}
}
/// <summary>
/// 取得CookieValue
/// </summary>
/// <param name="CookieName">Cookie名称</param>
/// <returns>Cookie的值</returns>
public static string GetCookie(string CookieName)
{
HttpCookie myCookie = new HttpCookie(CookieName);
myCookie = HttpContext.Current.Request.Cookies[CookieName];
if (myCookie != null)
return myCookie.Value;
else
return null;
}
/// <summary>
/// 清除CookieValue
/// </summary>
/// <param name="CookieName">Cookie名称</param>
public static void ClearCookie(string CookieName)
{
HttpCookie myCookie = new HttpCookie(CookieName);
DateTime now = DateTime.Now;
myCookie.Expires = now.AddYears(-2);
HttpContext.Current.Response.Cookies.Add(myCookie);
}
}
}
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