Himall商城Web帮助类 获得http请求数据

 ///

        /// 获得http请求数据
        ///

        /// 请求地址
        /// 请求方式
        /// 发送数据
        /// 编码
        /// 超时值
        ///
        //Edit:Dzy[150720]修改可获得HttpWebResponse
        public static string GetRequestData(string url, string method, string postData, Encoding encoding, int timeout)
        {
            try
            {
                using (HttpWebResponse response = GetURLResponse(url, method, postData, encoding, timeout))
                {
                    if (response == null)