c# 淘宝运单查询

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Web;
using System.Net;
using System.IO;
using System.Text.RegularExpressions;
using System.Security.Cryptography;
namespace Test1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            var mainUrl =
            @"http://api.wap.guoguo-app.com/h5/mtop.cnwireless.cnlogisticdetailservice.wapquerylogisticpackagebymailno/1.0/";
            var cookieUrl =
           @"http://api.wap.guoguo-app.com/h5/mtop.cnwireless.cncainiaoappservice.getlogisticscompanylist/1.0/?v=1.0&api=mtop.cnwireless.CNCainiaoAppService.getLogisticsCompanyList&appKey=12574478&t=1496741493353&callback=mtopjsonp1&type=jsonp&sign=b0f7376271effd90e311f998ad3a3efb&data=%7B%22version%22%3A0%2C%22cptype%22%3A%22all%22%7D";

            var mailNo = "826060403";//运单号码
            //准备参数
            var tikets = (DateTime.Now - Convert.ToDateTime("1970-01-01 00:00:00")).Ticks.ToString();
            var cookie = GetCookie(cookieUrl);//先请求一次获得cookie,可以先缓存下来。
            MessageBox.Show(cookie);
            var key = new Regex(@"(?:^|;\s*)_m_h5_tk\=([^;]+)(?:;\s*|$)").Match(cookie).Value.Split('=')[1]
                .Split('_')[0];
            var sign = GetMD5Hash(key + "&" + tikets + "&12574478" + "&{\"mailNo\":\"" + mailNo + "\"}")
                .ToLower();

            //获得参数列表
            var urlParas = string.Format(
                "?v=1.0&api=mtop.cnwireless.CNLogisticDetailService.wapqueryLogisticPackageByMailNo&appKey=12574478&t={0}&callback=mtopjsonp&type=jsonp&sign={1}",
                tikets, sign);
            urlParas += "&data={\"mailNo\":\"" + mailNo + "\"}";

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(mainUrl + urlParas);
            request.Method = "GET";
            request.Headers.Add("Cookie", cookie);
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
            string content = reader.ReadToEnd();
            Console.WriteLine(content);
            MessageBox.Show(content);
        }

    //md5加密
    public static string GetMD5Hash(String input)
    {

            // Use input string to calculate MD5 hash
            MD5 md5 = System.Security.Cryptography.MD5.Create();
            byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(input);
            byte[] hashBytes = md5.ComputeHash(inputBytes);

            // Convert the byte array to hexadecimal string
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < hashBytes.Length; i++)
            {
                sb.Append(hashBytes[i].ToString("x2"));
                // To force the hex string to lower-case letters instead of
                // upper-case, use he following line instead:
                // sb.Append(hashBytes[i].ToString("x2"));
            }
            return sb.ToString();
      //  return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(input, "md5");

    }

  //获得cookie
    public static string GetCookie(string url, int Timeout = 5000, bool isNeedProxy = true)
    {
        try
        {

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Method = "GET";
                     request.AllowAutoRedirect = false;
            request.ContentType = "application/x-www-form-urlencoded;charset=gbk";
            request.CookieContainer = new CookieContainer();
            request.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11";

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default);
            string content = reader.ReadToEnd();
            return response.Headers.Get("Set-Cookie");
        }
        catch (Exception ex)
        {

            return null;
        }
    }

    }
}