如何利用快递鸟提供的接口来查询邮政快递的物流轨迹。

讲解之前我们来看一下，接口完成以后的实际显示效果

以下是产品应用截图，调用快递鸟接口**的轨迹信息：

实际上快递鸟返回的报文信息会更详细，在给客户展示的信息可根据产品需要来封装返回轨迹信息。

现在我们来聊一聊具体实现！

首先我们**好需要用到的资源，

测试商户ID：

test1617571

测试API key：

554343b2-7252-439b-b4eb-1af42c8f2175(此Key仅限测试**使用)

API测试地址：

http://sandboxapi.kdniao.com:8080/kdniaosandbox/gateway/exterfaceInvoke.json

我以C#**为例来讲解

接下来，我们讲解一下请求参数

请求系统级参数说明：

备注：R-必填（Required），O-可选（Optional），C-报文中该参数在一定条件下可选（Conditional）

这里提到了系统级参数，也相当于是公用参数，这些参数是调用每个接口都是必须要传参的。

接口参数：

接口参数，也叫业务参数，请求的业务接口不同，参数的字段，内容也不同，是跟着业务变化的，这里我们实现的是即时查询接口，请求指令类型：1002，快递鸟官网要求必须传递快递**编码和物流单号 ，邮政快递的编码是YZPY

如要查看其他快递**的编码，点击此链接：

http://www.kdniao.com/documents

正如我前面的轨迹截图，邮政快递的编码是YZPY，物流单号是9861545869525

业务参数报文组合如下：

{'OrderCode':'','ShipperCode':'YZPY','LogisticCode':'9861545869525'}

请求的完整报文（URL编码以后）：

RequestData=%0d%0a++++++++++++%7b%27OrderCode%27%3a%27%27%2c%27ShipperCode%27%3a%27YZPY%27%2c%27LogisticCode%27%3a%279861545869525%27%7d%0d%0a++++++++&EBusinessID=1264783&RequestType=1002&DataSign=MjQ2YWZiMTU1Mzc5YmFiMTFkMWYyYjI3YTliMjRkYmU%3d&DataType=2

未编码的请求报文：

RequestData=

{'OrderCode':'','ShipperCode':'YZPY','LogisticCode':'9861545869525'}

&EBusinessID=1264783&RequestType=1002&DataSign=MjQ2YWZiMTU1Mzc5YmFiMTFkMWYyYjI3YTliMjRkYmU=&DataType=2

返回的报文信息：

{

"LogisticCode": "9861545869525",

"ShipperCode": "YZPY",

"Traces": [

{

"AcceptStation": "【邮政仙居包快部】已收件,揽投员:周峰,电话:18358689325",

"AcceptTime": "2020-02-19 16:10:29"

},

{

"AcceptStation": "离开【邮政仙居包快部】,下一站【仙居中心】",

"AcceptTime": "2020-02-19 16:10:33"

},

{

"AcceptStation": "到达【浙江仙居县处理中心】",

"AcceptTime": "2020-02-19 16:10:34"

},

{

"AcceptStation": "离开【浙江仙居县处理中心】,下一站【台州中心局邮件处理中心】",

"AcceptTime": "2020-02-21 11:13:33"

}

],

"State": "2",

"EBusinessID": "1264783",

"Success": true

}

C#关键代码：

/// <summary>

/// 即时查询物流轨迹

/// </summary>

/// <param name="url">http://sandboxapi.kdniao.com:8080/kdniaosandbox/gateway/exterfaceInvoke.json</param>

/// <param name="eBusinessID">test1617571</param>

/// <param name="appKey">554343b2-7252-439b-b4eb-1af42c8f2175</param>

/// <param name="requestData">{'OrderCode':'','ShipperCode':'ZTO','LogisticCode':'78120038107849'}</param>

/// <returns></returns>

public string getOrderTracesByJson(string url,string eBusinessID, string appKey, string requestData)

{

Dictionary<string, string> param = new Dictionary<string, string>();

param.Add("RequestData", HttpUtility.UrlEncode(requestData, Encoding.UTF8));

param.Add("EBusinessID", eBusinessID);

param.Add("RequestType", "1002");

string dataSign = encrypt(requestData, appKey, "UTF-8");

param.Add("DataSign", HttpUtility.UrlEncode(dataSign, Encoding.UTF8));

param.Add("DataType", "2");

string result = sendPost(url, param);

return result;

}

/// <summary>

/// Post**提交数据，返回网页的源代码

/// </summary>

/// <param name="url">发送请求的 URL</param>

/// <param name="param">请求的参数**</param>

/// <returns>远程资源的响应结果</returns>

private string sendPost(string url, Dictionary<string, string> param)

{

string result = "";

StringBuilder postData = new StringBuilder();

if (param != null && param.Count > 0)

{

foreach (var p in param)

{

if (postData.Length > 0)

{

postData.Append("&");

}

postData.Append(p.Key);

postData.Append("=");

postData.Append(p.Value);

}

}

// return postData.ToString();

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.Message;

}

return result;

}

///<summary>

///电商Sign签名

///</summary>

///<param name="content">内容</param>

///<param name="keyValue">Appkey</param>

///<param name="charset">URL编码 </param>

///<returns>DataSign签名</returns>

private string encrypt(String content, String keyValue, String charset)

{

if (keyValue != null)

{

return base64(MD5(content + keyValue, charset), charset);

}

return base64(MD5(content, charset), charset);

}

///<summary>

/// 字符串MD5加密

///</summary>

///<param name="str">要加密的字符串</param>

///<param name="charset">编码**</param>

///<returns>密文</returns>

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;

}

}

/// <summary>

/// base64编码

/// </summary>

/// <param name="str">内容</param>

/// <param name="charset">编码**</param>

/// <returns></returns>

private string base64(String str, String charset)

{

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

}

附上详细的接口文档给大家：

http://www.kdniao.com/documents