淘宝客根据优惠券url更新优惠券信息

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string m_h5_tk = "6ad772f2d0833a8e302c5ae68d65eaa0"; string time = ToUnixTimestampBySeconds().ToString(); string appKey = "12574478"; string data = JsonConvert.SerializeObject(new { e = "w4TDo/jOMecNfLV8niU3RxrSI/Oabn6qNg4Gqf8CT4AKuDLwELihnRbQhr+5FtsAh9KaCsCm+R32yVMpbbWtUWwCdh1fz0zYK5wEWaT+OkzWZTH/haUuJ+3FJUPORYvyhPbd0JgRLDq3GXpSbfs48lGikzdUqsEO7RwD1Eg9p5/o27RMW2YwFNweCPWKo1fUyUxONJCwrinluAYBRglsbQ==" }); string sign = GetSign(string.Join('&', new string[] { m_h5_tk, time, appKey, data })); data = HttpUtility.UrlEncode(data); string apiUrl = $"https://acs.m.taobao.com/h5/mtop.alimama.union.hsf.coupon.get/1.0/?jsv=2.4.0&appKey=12574478&t={time}&sign={sign}&api=mtop.alimama.union.hsf.coupon.get&v=1.0&AntiCreep=true&AntiFlood=true&data={data}";

　m_h5_tk为访问mtop.alimama.union.hsf.coupon.get接口链接时，返回的cookies数据，注，返回cookies数据格式为：_m_h5_tk= 1c08cb77a7795d64c543cd1728e0135c_1529065507043，这里只使用前半部分，在这里是1c08cb77a7795d64c543cd1728e0135c；

   time为毫秒级时间戳；

   appKey为固定的值12574478；

   data为json字符串，e为优惠券url中的参数e的值；

　sign签名

   

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/// <summary> ///  时间转时间戳Unix-时间戳精确到秒 /// </summary> private static long ToUnixTimestampBySeconds() {     DateTimeOffset dto = new DateTimeOffset(DateTime.Now);     return dto.ToUnixTimeMilliseconds(); } private static string GetSign(string strParameter) {     using (var md5 = MD5.Create())     {           var result = md5.ComputeHash(Encoding.UTF8.GetBytes(strParameter));         var strResult = BitConverter.ToString(result);         var sign = strResult.Replace("-", "").ToLower();         return sign;     } }