接收端通過Request.InputStream讀取

接收端通過Request.InputStream讀取請求頁面參數，最終的字符串。

byte[] byts = new byte[HttpContext.Current.Request.InputStream.Length];

                HttpContext.Current.Request.InputStream.Read(byts, 0, byts.Length);
                string req = System.Text.Encoding.Default.GetString(byts);
                req = HttpContext.Current.Server.UrlDecode(req);