接口对接常见的问题基本上是数据签名错误导致的接口联调失败，大家在电商平台调用快递鸟接口时，为了提供对接效率，给大家提供一些方法供大家参考。

方法调用的代码实现

//电商ID

string eEBusinessID = "test1617571";

//电商加密私钥，快递鸟提供，注意保管，不要泄漏

string appKey= "554343b2-7252-439b-b4eb-1af42c8f2175";

//请求url

string reqURL = "http://sandboxapi.kdniao.com:8080/kdniaosandbox/gateway/exterfaceInvoke.json";

//请求指令

string reqType="1002";

//2-json

string dataType = "2";

//字符编码采用UTF-8

string charset = "UTF-8";

//JSON字符串string

string jsonStr =

"{\"OrderCode\":\"\",\"ShipperCode\":\"SF\",\"LogisticCode\":\"118461988807\"}" ;

//把(jsonStr+APIKey)进行MD5加密

string md5Str=MD5(jsonStr + apiKey, charset);

//把md5Str 进行Base64编码

string base64Str=base64(md5Str,charset);

//进行URL编码 (utf-8)

string datasign = HttpUtility.UrlEncode(base64Str, charset);

//请求报文参数

string postStr = "RequestType=reqType&EBusinessID= eEBusinessID&RequestData=jsonStr

&DataSign= datasign&DataType=dataType";

//通讯协议使用Http协议Post请求方式 返回轨迹数据

string post = SendPost(reqURL, postStr);

//获取到的post数据就是快递鸟返回的完整报文，接下来自己写一个解析json的方法就能获取到里面的字段信息。

C#封装的方法

///

/// 字符串MD5加密

///

///要加密的字符串

///编码方式

///密文

private string MD5(string str, string charset)

{

byte[] buffer = System.Text.Encoding.GetEncoding(charset).GetBytes(str);

try

{

System.Security.Cryptography.MD5CryptoServiceProvider check;

check = new System.Security.Cryptography.MD5CryptoServiceProvider();

byte[] somme = check.ComputeHash(buffer);

string ret = "";

foreach (byte a in somme)

{

if (a < 16)

ret += "0" + a.ToString("X");

else

ret += a.ToString("X");

}

return ret.ToLower();

}

catch

{

throw;

}

}

///

/// base64编码

///

/// 内容

/// 编码方式

///

private string base64(String str, String charset)

{

return Convert.ToBase64String(System.Text.Encoding.GetEncoding(charset).GetBytes(str));

}

///

/// Post方式提交数据，返回网页的源代码

///

/// 发送请求的 URL

/// 请求报文参数

/// 远程资源的响应结果

private string SendPost(string url, string postData)

{

string result = "";

byte[] byteData = Encoding.GetEncoding("UTF-8").GetBytes(postData.ToString());

try

{

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

request.ContentType = "application/x-www-form-urlencoded";

request.Referer = url;

request.Accept = "*/*";

request.Timeout = 30 * 1000;

request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)";

request.Method = "POST";

request.ContentLength = byteData.Length;

Stream stream = request.GetRequestStream();

stream.Write(byteData, 0, byteData.Length);

stream.Flush();

stream.Close();

HttpWebResponse response = (HttpWebResponse)request.GetResponse();

Stream backStream = response.GetResponseStream();

StreamReader sr = new StreamReader(backStream, Encoding.GetEncoding("UTF-8"));

result = sr.ReadToEnd();

sr.Close();

backStream.Close();

response.Close();

request.Abort();

}

catch (Exception ex)

{

result = ex.ToString();

}

return result;

}

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