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在Asp.Net MVC中利用快递100接口实现订阅物流轨…

2018-09-18 06:54:29来源：博客园阅读 ()

前言

分享一篇关于在电商系统中同步物流轨迹到本地服务器的文章，当前方案使用了快递100做为数据来源接口，这个接口是收费的，不过提供的功能还是非常强大的，有专门的售后维护团队。也有免费的方案，类似于快递鸟，不过数据出现问题就凉凉了

正文

实现思路大概分为三大步：

第一步：提交订阅信息到快递100的接口

第二步：快递100收到请求后会对回调地址进行跟踪，将快递信息推送给回调接口

第三步：回调接口收到Post推送的数据后，进行逻辑处理

注意：回调的地址建议单独部署一个API项目，不要放在主程序下面；或者在提交订阅时要求对回调进行签名验证。

下面附上详细代码：

Subscribe类

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Configuration;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using WoT.Infrastructure.Helper.Xml;
using WoT.Model.Inventory;
using WoT.ViewModel.Dtos.Inventory;

namespace WoT.SyscTraceSys
{
    /// <summary>
    /// 订阅物流轨迹
    /// </summary>
    public class Subscribe
    {
        //拿到授权的Key
        private static string key = ConfigurationManager.AppSettings["SubscribeKey"];

        //请求的url
        private static string reqUrl = "http://www.kuaidi100.com/poll";

        //回调url
        private static string callbackurl = "http://你的域名/api/kd100/callback";

        /// <summary>
        /// 发送订阅指令
        /// </summary>
        /// <param name="invoce">发货单</param>
        /// <param name="shipperCode">快递公司</param>
        /// <returns></returns>
        public static KD100Result SendPost(Invoice invoce, string shipperCode = "SF")
        {
            StringBuilder param = new StringBuilder();
            KD100Result kdResult = new KD100Result();

            param.Append("<?xml version='1.0' encoding='UTF-8'?>")
                .AppendFormat("<orderRequest>")
                .AppendFormat("<company>{0}</company>", GetCom(shipperCode))
                .AppendFormat("<number>{0}</number>", invoce.LogisticCode)
                .AppendFormat("<from></from>")
                .AppendFormat("<to></to>")
                .AppendFormat("<key>{0}</key>", key)
                .AppendFormat("<parameters><callbackurl>{0}</callbackurl><resultv2>1</resultv2></parameters>", callbackurl)
                .Append("</orderRequest>");

            NameValueCollection postvals = new NameValueCollection();
            postvals.Add("schema", "xml");
            postvals.Add("param", param.ToString());
            try
            {
                using (WebClient wc = new WebClient())
                {
                    string rlt = System.Text.Encoding.UTF8.GetString(wc.UploadValues(reqUrl, "POST", postvals));
                    kdResult = XmlExpand.DESerializer<KD100Result>(rlt);
                }
            }
            catch (Exception ex)
            {
                return new KD100Result() { result = false, returnCode = 0, message = ex.Message };
            }
            return kdResult;
        }

        /// <summary>
        /// 获取com
        /// </summary>
        /// <param name="shipperCode"></param>
        /// <returns></returns>
        private static string GetCom(string shipperCode)
        {
            string com = "shunfeng";
            switch (shipperCode)
            {
                case "EMS":
                    com = "ems";
                    break;
                case "SF":
                    com = "shunfeng";
                    break;
                case "STO":
                    com = "shentong";
                    break;
                case "YD":
                    com = "yunda";
                    break;
                case "YTO":
                    com = "yuantong";
                    break;
                case "YZPY":
                    com = "youzhengguonei";
                    break;
                case "ZJS":
                    com = "zhaijisong";
                    break;
                case "ZTO":
                    com = "zhongtong";
                    break;
                case "DBL":
                    com = "debangwuliu";
                    break;
                case "JD":
                    com = "debangwuliu";
                    break;
                default:
                    break;
            }
            return com;
        }
    }
}

GetCom()方法是获取获取快递公司的标示编号，我在数据库中只存了快递简称，所以需要通过这种方式获取，如果是存在数据库的就可以直接从数据库获取了。

DESerializer()方法将xml字符串转化为实体对象，关于实现的详情在前面C#操作Xml树的扩展类一节中有讲到。

ConfigurationManager.AppSettings["SubscribeKey"];是读取配置文件，获取快递100对商户授权的Key，配置代码如下：
在appSettings节点下添加

KD100Result类

    /// <summary>
    /// 快递100返回结果
    /// </summary>
    [Serializable]
    [XmlType("orderResponse")]
    public class KD100Result
    {
        /// <summary>
        /// 
        /// </summary>
        [XmlElement("result")]
        public bool result { get; set; }

        /// <summary>
        /// 
        /// </summary>
        [XmlElement("returnCode")]
        public int returnCode { get; set; }

        /// <summary>
        /// 
        /// </summary>
        [XmlElement("message")]
        public string message { get; set; }
    }

回调接口Action

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        [Route("callback")]
        public void callback()
        {
            StringBuilder sb = new StringBuilder();
            DateTime now = DateTime.Now;
            pushResponse push = new pushResponse()
            {
                Result = false,
                ReturnCode = 404,
                Message = "没有拉取到相关数据"
            };

            HttpContext context = HttpContext.Current;
            if (!context.Request.RequestType.ToUpper().Equals("POST"))
            {
                context.Response.Write(string.Format("<?xml version='1.0' encoding='UTF-8'?><pushResponse><result>{0}</result><returnCode>{1}</returnCode><message>{2}</message></pushResponse>", false, 0, "请使用POST提交"));
                context.Response.End();
                return;
            }

            try
            {
                sb.Clear();
                var stream = context.Request.InputStream;
                string param = ReadStream(stream);

                if (string.IsNullOrEmpty(param))
                {
                    context.Response.Write(string.Format("<?xml version='1.0' encoding='UTF-8'?><pushResponse><result>{0}</result><returnCode>{1}</returnCode><message>{2}ee</message></pushResponse>", push.Result, push.ReturnCode, push.Message));
                    context.Response.End();
                    return;
                }

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

                string[] sp1 = param.Split('&');
                foreach (string s in sp1)
                {
                    int splIdx = s.IndexOf('=');
                    string key = s.Substring(0, splIdx);
                    string value = s.Substring(splIdx + 1);

                    dic.Add(key.Trim(), value.Trim());
                }
                string cbxml = HttpUtility.UrlDecode(dic["param"], Encoding.UTF8);

                using (ILogisticsTraceService _Service = CoreServiceFactory.Used.Build<ILogisticsTraceService>())
                {
                    push = _Service.PushLogisticsTrace(cbxml);
                }

                sb.Append("<?xml version='1.0' encoding='UTF-8'?>")
                    .AppendFormat("<pushResponse><result>{0}</result>", push.Result)
                    .AppendFormat("<returnCode>{0}</returnCode>", push.ReturnCode)
                    .AppendFormat("<message>{0}</message>", push.Message)
                    .Append("</pushResponse>");

                stream.Close();
                context.Response.Write(sb.ToString());
                context.Response.End();
            }
            catch (Exception)
            {
                context.Response.Write(string.Format("<?xml version='1.0' encoding='UTF-8'?><pushResponse><result>{0}</result><returnCode>{1}</returnCode><message>{2}</message></pushResponse>", false, 0, "服务器处理错误"));
            }

        }