cookie跨二级域名和顶级域名

来源：互联网发布：程序员修炼之道pdf 编辑：程序博客网时间：2024/06/04 08:56

1. 二级域名下 cookie跨域名

 Response.AddHeader("P3P", "CP=CAO PSA OUR");//ie浏览器下需写入                HttpCookie cookie = new HttpCookie("username");                cookie.Domain = ".baidu.com";//域名                cookie.Expires = DateTime.Now.AddDays(14);                cookie.Value =value.Name;                Response.AppendCookie(cookie);

2.顶级域名的跨cookie用iframe嵌套或者用js调用接口

先写一接口为sso.ashx 在a域名下

<%@ WebHandler Language="C#" Class="SSO" %>using System;using System.Web;public class SSO : IHttpHandler {        public void ProcessRequest (HttpContext context)    {        HttpRequest rq = context.Request;        string username = "";        if (!string.IsNullOrEmpty(Convert.ToString(rq.QueryString["username"])))        {            username = Convert.ToString(rq.QueryString["username"]);        }                HttpCookie cookie = new HttpCookie("username");        cookie.Domain = "tt.com";        cookie.Path = "/";        cookie.Expires = DateTime.Now.AddMinutes(10000);        cookie.Value = username;        context.Response.Cookies.Add(cookie);        context.Response.ContentType = "text/plain";        context.Response.AddHeader("P3P", "CP=CAO PSA OUR");        context.Response.Write("");    }     public bool IsReusable {        get {            return false;        }    }    }

js调用 b域名下 <script type="text/javascript" src="http://www.tt.com/SSO.ashx?username=1321"></script>

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