最近在專案中通過.NET的 Request.Create 和Request.Respon 進行跨域請求資料,在使用post進行請求是,自己儲存的cookie會傳遞過去,但是通過Get 進行遠端伺服器請求資料時會丟失Cookie,也不知道為何傳遞不過去,經過百般搜尋找到了一個fixCookies方法,可以把Cookie傳遞過去,因此記錄下來,供大家使用。

public Stream GetStreamDataByGET(string url,HttpContext context)
        {           
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create
 
(url);
            request.Method = "Get";
            if (!string.IsNullOrEmpty(context.Request.Headers["Cookie"]))
            {
                request.Headers.Add("Cookie", context.Request.Headers["Cookie"]);
            }
            HttpWebResponse response = (HttpWebResponse)request.GetResponse
 
();
            FixCookies(response, context);
            Stream stream = response.GetResponseStream();
            return stream;
        }

        private void FixCookies(HttpWebResponse response, HttpContext context)
        {
            if (response.Headers["Set-Cookie"] == null)
            {
              continue;
 

             }
                string value = response.Headers.Get("Set-Cookie");
                HttpCookie cc = null;
                foreach (var singleCookie in value.Split(','))
                {
                    Match match = Regex.Match(singleCookie, "(.+?)=(.+?);");
                    if (match.Captures.Count == 0)
                    {
                        continue;
                    }
                        context.Response.Headers.Add("Set-Cookie", response.Headers["Set-Cookie"]);
                        cc = new HttpCookie(match.Groups[1].ToString(),match.Groups[2].ToString());
                        context.Response.SetCookie(cc);
                }


        }