Http上传Xml文件

  /// <summary>
        /// Http上传Xml文件
        /// </summary>
        /// <param name="url">访问url</param>
        /// <param name="path">文件路径(本地的绝对路径)</param>
        /// <returns></returns>
        public string HttpUploadFile(string url, string path)
        {
            string result = "";
            StreamWriter myWriter = null;
            HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);
            objRequest.Method = "POST";
            objRequest.ContentType = "text/xml";//提交xml 
            objRequest.ContentType = "application/x-www-form-urlencoded";
            try
            {
                XmlDocument doc = new XmlDocument();
                doc.Load(path);
                string data = ConvertXmlToString(doc);
                myWriter = new StreamWriter(objRequest.GetRequestStream());
                myWriter.Write(data);
            }
            catch (Exception e)
            {
                return e.Message;
            }
            finally
            {
                myWriter.Close();
            }

            HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();
            using (StreamReader sr = new StreamReader(objResponse.GetResponseStream()))
            {
                result = sr.ReadToEnd();
                sr.Close();
            }
            return result;
        }