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Re注册回调接口的问题！！求大神 我也遇到同样的问题， 审批通知回调，在测试URL的时候一直提示这个，请问最后怎么解决的，是哪里需要注意？

Re“服务端开发文档-注册事件回调接口”让人困惑 遇到同样的问题，我的返回内容是：{'msg_signature':'411c8a224ccff4faa8ef233a2686f88a243255c8','timeStamp':'1503296132','nonce':'s9psbfYd','encrypt':'kuaShC+LOwtDYotihRDRW56GFmX8QZ8FOAY+J0jsDP/FqwUJaHDfzs3HsfX/R6oAVqatwIW3yAgNQCCxjVywYQ=='} 但是一直提示{'errcode':71009,'errmsg':'返回文本非success'}，请问最后是怎么解决的呢？ ------------------------- Re“服务端开发文档-注册事件回调接口”让人困惑 C#版本的， 下载C#的sdk，企业调用，回调使用下面的代码，有个地方改了， 终于调试通了，坑死我了。                string msgSignature = Request['signature'];//消息签名                string timestamp = Request['timestamp'];//时间戳                string nonce = Request['nonce'];//随机号                 string mToken = ConfigurationManager.AppSettings['DingTalkToken'];                 string mSuiteKey = 'dingcxxxxxxxxxxxxxxxxxxxxxx';//更换key                 string mEncodingAesKey = ConfigurationManager.AppSettings['DingTalkEncodingAESKey'];                 //post数据包数据中的加密数据                 var encryptStr = GetPostParam();                 string newSignature = '';                 DingTalkCrypt.GenerateSignature(mToken, timestamp, nonce, encryptStr, ref newSignature);                 if (msgSignature != newSignature)                 {                     LogHelper.Info('消息有可能被篡改！签名验证错误！ ');                     return “”;                 }                 var sReplyEchoStr = '';                 DingTalkCrypt suiteAuth = new DingTalkCrypt(mToken, mEncodingAesKey, mSuiteKey);                 var ret = suiteAuth.VerifyURL(msgSignature, timestamp, nonce, encryptStr, ref sReplyEchoStr);                 if (ret != 0)                 {                     LogHelper.Info('ERR: VerifyURL fail, ret: ' + ret);                     return “”;                 }                 DingTalkCrypt dingTalk = new DingTalkCrypt(mToken, mEncodingAesKey, mSuiteKey);                 string plainText = '';                 dingTalk.DecryptMsg(msgSignature, timestamp, nonce, encryptStr, ref plainText);                 Hashtable tb = (Hashtable)JsonConvert.DeserializeObject(plainText, typeof(Hashtable));                 string eventType = tb['EventType'].ToString();                 string result = '';                 switch (eventType)                 {                     case 'bpms_task_change'://审批通知                         break;                     case 'bpms_instance_change'://审批通知                         break;                     case 'check_url'://测试url                         string encrypt = '';                         string signature = '';                         dingTalk = new DingTalkCrypt(mToken, mEncodingAesKey, mSuiteKey);                         dingTalk.EncryptMsg('success', timestamp, nonce, ref encrypt, ref signature);                         Hashtable json = new Hashtable                         {                             {'msg_signature', signature},                             {'timeStamp', timestamp},                             {'nonce', nonce},                             {'encrypt', encrypt}                         };                         result = JsonConvert.SerializeObject(json);                         return result;                         break;                 }