//微信接入的测试string token = ConfigurationManager.AppSettings["CorpToken"];//从配置文件获取Tokenstring CorpID = ConfigurationManager.AppSettings["CorpID"];//从配置文件获取Tokenstring EncodingAESKey = ConfigurationManager.AppSettings["EncodingAESKey"];//从配置文件获取Tokenstring signature = context.Request["msg_signature"];string timestamp = context.Request["timestamp"];string nonce = context.Request["nonce"];　　　　　　　string echostr = context.Request["echostr"];

<appSettings ><!--企业号配置信息--><add key="CorpToken" value="XXXXXXXXXX"/><add key="CorpID" value="XXXXXXXXXXXXX"/><add key="EncodingAESKey" value="1v82IRu54erxBj3v1hItooXOXXXXXXXXXXXXXXX"/></appSettings>

  public class CheckSignatureQY{/// <summary>/// 在网站没有提供Token（或传入为null）的情况下的默认Token，建议在网站中进行配置。/// </summary>public const string Token = "weixin";/// <summary>/// 微信链接服务器验证凭证/// </summary>/// <param name="sVerifyMsgSig">微信加密签名，msg_signature结合了企业填写的token、请求中的timestamp、nonce参数、加密的消息体 </param>/// <param name="sVerifyTimeStamp">时间戳</param>/// <param name="sVerifyNonce">随机数</param>/// <param name="sVerifyEchoStr">加密的随机字符串，以msg_encrypt格式提供。需要解密并返回echostr明文，解密后有random、msg_len、msg、$CorpID四个字段，其中msg即为echostr明文 </param>/// <param name="sEncodingAESKey">EncodingAESKey用于消息体的加密，是AES密钥的Base64编码。</param>/// <param name="sCorpID">帐号信息 CorpID</param>/// <param name="sEchoStr"></param>/// <param name="sToken"></param>/// <returns></returns>public static bool Check(string sVerifyMsgSig, string sVerifyTimeStamp, string sVerifyNonce, string sVerifyEchoStr, string sEncodingAESKey, string sCorpID, ref string sEchoStr, string sToken = null){sToken = String.IsNullOrEmpty(sToken) ? Token : sToken;WXBizMsgCrypt wxcpt = new WXBizMsgCrypt(sToken, sEncodingAESKey, sCorpID);int ret = 0;ret = wxcpt.VerifyURL(sVerifyMsgSig, sVerifyTimeStamp, sVerifyNonce, sVerifyEchoStr, ref sEchoStr);if (ret != 0)sEchoStr = "ERR: VerifyURL fail, ret: " + ret;return ret == 0;}}

　　　　　　 if (context.Request.HttpMethod == "GET")//验证
            {
string sEchoStr = "";bool check = CheckSignatureQY.Check(signature, timestamp, nonce, echostr, EncodingAESKey, CorpID, ref sEchoStr, token);//True表示成功//WriteText(check ? "True" : "False");//check为True成功，Flase失败，失败信息在SechoStrWriteContent(sEchoStr); //返回随机字符串则表示验证通过
}