清除Cookie的数据

清除Cookie的数据

1.清除已知。key为你所知cookie的名字。

        //清除cookies
        foreach (string key in cookies)
        {
            contenxt.Response.Cookies[key].Expires = DateTime.Now.AddDays(-1);
        }

2.清除所有Cookie。

            for (int i = 0; i < this.Request.Cookies.Count; i++)
            {
                this.Response.Cookies[this.Request.Cookies[i].Name].Expires = DateTime.Now.AddDays(-1);
            }

为了更好的使用我们可以把这二个方法封装。

    /// <summary>
    /// 清除指定cookie
    /// </summary>
    /// <param name="contenxt">The contenxt.</param>
    /// <param name="cookies">The cookies.</param>
    public static void ClearCookies(HttpContext contenxt,params string[] cookies)
    {
        //清除cookies
        foreach (string key in cookies)
        {
            contenxt.Response.Cookies[key].Expires = DateTime.Now.AddDays(-1);
        }
    }
    /// <summary>
    /// 清空所有cookie
    /// </summary>
    /// <param name="contenxt">The contenxt.</param>
    public static void ClearCookiesAll(HttpContext contenxt)
    {
        //清除cookies
        for (int i = 0; i < contenxt.Request.Cookies.Count; i++)
        {
            contenxt.Response.Cookies[contenxt.Request.Cookies[i].Name].Expires = DateTime.Now.AddDays(-1);
        }
    }

　　

更详细可以看这位大佬，语言蛮逗的可以激发下你学习的兴趣我丢：https://www.cnblogs.com/stxwork/p/5545236.html