C#快递单号查询源码

源码本人测试过，没有啥问题，能查询快递单号，支持的快递还挺多，圆通快递、申通快递、韵达快递的都支持单号查询的，程序是通过向爱快递(www.aikuaidi.cn)接口传输参数来查询快递单号，我直接把代码帖出来，很好的解决我单个开发的麻烦。

/// <summary>        /// 同步单号查询方法        /// </summary>        /// <typeparam name="T"></typeparam>        /// <param name="id"></param>        /// <param name="order"></param>        /// <param name="isSign"></param>        /// <param name="isLast"></param>        /// <param name="defaultValue"></param>        /// <returns></returns>        public static T APIQueryDataSYNC<T>(string id,                                             string order,                                             bool isSign,                                             bool isLast,                                             T defaultValue)        {            try            {                string currTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");                string currKey = key;                if (isSign)                {                    currKey = Utils.GetSign(uid, key, id, order, currTime);                    currKey += "&issign=true";                }                string url = sync_url + string.Format("?uid={0}&key={1}&id={2}&order={3}&time={4}",                                            uid, currKey, id, order, HttpUtility.UrlEncode(currTime));                string html = Utils.GET_WebRequestHTML("utf-8", url);                if (!string.IsNullOrEmpty(html))                    return Utils.JsonToObj<T>(html, defaultValue);            }            catch (Exception ex)            {                throw new Exception(ex.Message);            }            return defaultValue;        }    }    /// <summary>    /// 辅助工具类    /// </summary>    public class Utils    {        public static string GetSign(int uid, string key, string id, string order, string time)        {            string sign = string.Format("uid={0}&key={1}&id={2}&order={3}&time={4}",                                        uid,                                        key,                                        id,                                        HttpUtility.UrlEncode(order.ToLower()),                                        HttpUtility.UrlEncode(time));            return md5Encrypt(sign.ToLower(), "utf-8");        }        public static string Md5Encrypt(string strToBeEncrypt, string encodingName)        {            MD5 md5 = new MD5CryptoServicePRovider();            Byte[] FromData = System.Text.Encoding.GetEncoding(encodingName).GetBytes(strToBeEncrypt);            Byte[] TargetData = md5.ComputeHash(FromData);            string Byte2String = "";            for (int i = 0; i < TargetData.Length; i++)            {                Byte2String += TargetData[i].ToString("x2");            }            return Byte2String;        }        public static T GetRequest<T>(string key, T defaultValue)        {            string value = HttpContext.Current.Request[key];            if (string.IsNullOrEmpty(value))            {                return defaultValue;            }            else            {                try                {                    return (T)Convert.ChangeType(value, typeof(T));                }                catch                {                    return defaultValue;                }            }        }        public static T GetAppConfig<T>(string key, T defaultValue)        {            string value = ConfigurationManager.AppSettings[key];            if (string.IsNullOrEmpty(value))            {                return defaultValue;            }            else            {                try                {                    return (T)Convert.ChangeType(value, typeof(T));                }                catch                {                    return defaultValue;                }            }        }        public static string ObjToJson<T>(T data)        {            try            {                DataContractJsonSerializer serializer = new DataContractJsonSerializer(data.GetType());                using (MemoryStream ms = new MemoryStream())                {                    serializer.WriteObject(ms, data);                    return Encoding.UTF8.GetString(ms.ToArray());                }            }            catch            {                return null;            }        }        public static T JsonToObj<T>(string json, T defaultValue)        {            try            {                System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(T));                using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json)))                {                    object obj = serializer.ReadObject(ms);                    return (T)Convert.ChangeType(obj, typeof(T));                }            }            catch            {                return defaultValue;            }        }        public static T xmlToObj<T>(string xml, T defaultValue)        {            try            {                System.Runtime.Serialization.DataContractSerializer serializer = new System.Runtime.Serialization.DataContractSerializer(typeof(T));                using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(xml)))                {                    object obj = serializer.ReadObject(ms);                    return (T)Convert.ChangeType(obj, typeof(T));                }            }            catch            {                return defaultValue;            }        }        public static string ObjToXml<T>(T data)        {            System.Runtime.Serialization.DataContractSerializer serializer = new System.Runtime.Serialization.DataContractSerializer(typeof(T));            using (MemoryStream ms = new MemoryStream())            {                serializer.WriteObject(ms, data);                return Encoding.UTF8.GetString(ms.ToArray());            }        }        public static string GET_WebRequestHTML(string encodingName, string htmlUrl)        {            string html = string.Empty;            try            {                Encoding encoding = Encoding.GetEncoding(encodingName);                WebRequest webRequest = WebRequest.Create(htmlUrl);                HttpWebResponse httpWebResponse = (HttpWebResponse)webRequest.GetResponse();                Stream responseStream = httpWebResponse.GetResponseStream();                StreamReader streamReader = new StreamReader(responseStream, encoding);                html = streamReader.ReadToEnd();                httpWebResponse.Close();                responseStream.Close();                streamReader.Close();            }            catch (WebException ex)            {                throw new Exception(ex.Message);            }            return html;        }}