关于串通京东接口的demo

  public string Get(int id)
         {

             JObject o = new JObject(
                 new JProperty("billNo", "ESL1363593563"),
                 new JProperty("billType", ""),
                 new JProperty("pageNo", ""),
                 new JProperty("pageSize", ""),
                 new JProperty("queryType ", "")
                 );
             //压缩str,用于得到sign的值
             string str = "360buy_param_json" + o.ToString() + "access_token" +  + "app_key" +  + "method" +  + "timestamp=" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "v2.0";
             //完整str
             string str1 = "360buy_param_json=" + o.ToString() + "&access_token=" +  + "&app_key=" +  + "&method=" +  + "&timestamp=" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "&v=2.0";

             string end = "yourappSecret" + str + "yourappSecret";
             string md5 = StrToMD5(end);//得出来sign
             //最后拼接url：
             string endstr = str1 + "&sign=" + md5;
             //经常用到url中含有中文字符的需要对其进行字符串编码和解码，所以这里就用了这个System.Web.HttpUtility.UrlEncode，
 c#asp.net url 传递中文参数要使用 System.Web.HttpUtility.UrlEncode 而不能使用Server.UrlEncode             string allStr = System.Web.HttpUtility.UrlEncode(endstr, System.Text.Encoding.UTF8);
             byte[] bufferB = Encoding.UTF8.GetBytes(allStr);
             System.Net.ServicePointManager.DefaultConnectionLimit = ;
             HttpWebRequest WebReq = (HttpWebRequest)WebRequest.Create("www.cctv.com");
             WebReq.Method = "POST";
             WebReq.ContentType = "application/x-www-form-urlencoded";
             WebReq.ContentLength = allStr.Length;
             Stream PostData = WebReq.GetRequestStream();
             PostData.Write(bufferB, , bufferB.Length);
             PostData.Close();

             HttpWebResponse WebResp = (HttpWebResponse)WebReq.GetResponse();
             StreamReader sr = new StreamReader(WebResp.GetResponseStream(), System.Text.Encoding.UTF8);
             string backstr = sr.ReadToEnd();
             backstr = HttpUtility.UrlDecode(backstr);
             Console.WriteLine(WebResp.StatusCode);
             Console.WriteLine(WebResp.Server);
             Stream Answer = WebResp.GetResponseStream();
             StreamReader _Answer = new StreamReader(Answer);
             Console.WriteLine(_Answer.ReadToEnd());
             return _Answer.ReadToEnd();

         }

         {
             return val.TrimStart(c).TrimEnd(c);
         }

         private static string GetSignature(IDictionary<string, string> parameters, string secret)
         {
             // 先将参数以其参数名的字典序升序进行排序
             IDictionary<string, string> sortedParams = new SortedDictionary<string, string>(parameters);
             IEnumerator<KeyValuePair<string, string>> iterator = sortedParams.GetEnumerator();

             // 遍历排序后的字典，将所有参数按"keyvaluekeyvalue"格式拼接在一起
             StringBuilder basestring = new StringBuilder();
             while (iterator.MoveNext())
             {
                 string key = iterator.Current.Key;
                 string value = iterator.Current.Value.ToString();
                 if (!string.IsNullOrEmpty(key) && value != null)
                 {
                     basestring.Append(key).Append(value);
                 }
             }

             // 使用MD5对待签名串求签
             string upperCaseStr = StrToMD5(basestring.ToString());
             string result = StrToMD5(upperCaseStr + secret);
             return result;
         }

         private static string StrToMD5(string str)
         {
             byte[] data = Encoding.UTF8.GetBytes(str);
             MD5 md5 = new MD5CryptoServiceProvider();
             byte[] OutBytes = md5.ComputeHash(data);

             string OutString = "";
             for (int i = ; i < OutBytes.Length; i++)
             {
                 OutString += OutBytes[i].ToString("x2");
             }
             return OutString.ToUpper();
         }