c# 微信商家转账到零钱，最详细代码

 public class ShangJiaPayChange
    {
        public static string partner_trade_no { get; set; }

        public static string openId { get; set; }

        public static int amount { get; set; }

        public static string desc { get; set; }

        public static int guestType { get; set; }

        public static string AppId { get; set; }

        public static string mchid { get; set; }

        public static string serialNo { get; set; }

        public static string CerPath { get; set; }

        public static string QuaryMoneyDetail()
        {
            string url = "https://api.mch.weixin.qq.com/v3/transfer/batches/out-batch-no/"+partner_trade_no+ "?need_query_detail=True&detail_status=ALL";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Method = "GET";
            request.ContentType = "application/json;charset=UTF-8";
            request.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3100.0 Safari/537.36";
            request.Accept = "application/json";
            //Log.Info("发起开始申请商户转账到零钱请求", "发起请求1");
            string Authorization = GetAuthorization(url, "GET", string.Empty, mchid, serialNo);
           
            request.Headers.Add("Authorization", Authorization);
            LogHelper.Info("返回申请商户转账到零钱结果", url);
            //byte[] paramJsonBytes;
            //paramJsonBytes = System.Text.Encoding.UTF8.GetBytes(postData);
            //request.ContentLength = paramJsonBytes.Length;
            string reslut = "";
            HttpWebResponse wbResponse = (HttpWebResponse)request.GetResponse();
            using (Stream responseStream = wbResponse.GetResponseStream())
            {
                using (StreamReader sReader = new StreamReader(responseStream))
                {
                    reslut = sReader.ReadToEnd();
                }
            }
            return reslut;
        }

        public static string WithDrawsToWx()
        {
           

            //string partnerTradeNo = "xcx" + DateTime.Now.ToString("yyyyMMddHHmmfff");
            SortedDictionary<string, object> dic = new SortedDictionary<string, object>();
            dic.Add("appid", AppId);
            dic.Add("out_batch_no", partner_trade_no);
            dic.Add("batch_name", DateTime.Now.ToString("D") + "提现记录");
            dic.Add("batch_remark", DateTime.Now.ToString("D") + "提现记录");
            dic.Add("total_amount", amount);
            dic.Add("total_num", 1);

            List<object> list = new List<object>();
            SortedDictionary<string, object> dic1 = new SortedDictionary<string, object>();
            dic1.Add("out_detail_no", partner_trade_no);
            dic1.Add("transfer_amount", amount);
            dic1.Add("transfer_remark", desc);
            dic1.Add("openid", openId);

            list.Add(dic1);
            dic.Add("transfer_detail_list", list);

            var url = "https://api.mch.weixin.qq.com/v3/transfer/batches";

            
            string transactionsResponse = WxV3PostJson(url, Newtonsoft.Json.JsonConvert.SerializeObject(dic), mchid, serialNo);
          

            //Log.Info("商户转账到零钱返回：" , transactionsResponse);
            return transactionsResponse; 
        }



        public static string WxV3PostJson(string url, string postData, string mchId, string serialNo)
        {
           
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Method = "POST";
            request.ContentType = "application/json;charset=UTF-8";
            request.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3100.0 Safari/537.36";
            request.Accept = "application/json";
            //Log.Info("发起开始申请商户转账到零钱请求", "发起请求1");
            string Authorization = GetAuthorization(url, "POST", postData, mchId, serialNo);
            request.Headers.Add("Authorization", Authorization);
            //Log.Info("返回申请商户转账到零钱结果", Authorization);
            byte[] paramJsonBytes;
            paramJsonBytes = System.Text.Encoding.UTF8.GetBytes(postData);
            request.ContentLength = paramJsonBytes.Length;
            Stream writer;
            try
            {
                writer = request.GetRequestStream();
            }
            catch (Exception)
            {
                writer = null;
                Console.Write("连接服务器失败!");
            }
            writer.Write(paramJsonBytes, 0, paramJsonBytes.Length);
            writer.Close();
            HttpWebResponse response;
            try
            {
                response = (HttpWebResponse)request.GetResponse();
            }
            catch (WebException ex)
            {
                response = ex.Response as HttpWebResponse;
            }
            Stream resStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(resStream);
            string text = reader.ReadToEnd();
            return text;
        }

        protected static string GetAuthorization(string url, string method, string jsonParame, string mchId, string serialNo)
        {
            var uri = new Uri(url);
            string urlPath = uri.PathAndQuery;
            string nonce = Guid.NewGuid().ToString();
            var timestamp = DateTimeOffset.Now.ToUnixTimeSeconds();
            //数据签名     HTTP请求方法\n接口地址的url\n请求时间戳\n请求随机串\n请求报文主体\n
            method = string.IsNullOrEmpty(method) ? "" : method;
            string message = string.Format("{0}\n{1}\n{2}\n{3}\n{4}\n", method, urlPath, timestamp, nonce, jsonParame);

            //Log.Info("请求message：", message);
            //string signTxt = Sign(message, privateKey);
            string signTxt = Sign(message);
            //Log.Info("返回签名：", signTxt);

            //Authorization和格式
            string authorzationTxt = string.Format("WECHATPAY2-SHA256-RSA2048 mchid=\"{0}\",nonce_str=\"{1}\",timestamp=\"{2}\",serial_no=\"{3}\",signature=\"{4}\"",
                mchId,
                nonce,
                timestamp,
                serialNo,
                signTxt
                );
            return authorzationTxt;

        }


        //protected static  string Sign(string message)
        //{
        //    // NOTE： 私钥不包括私钥文件起始的-----BEGIN PRIVATE KEY-----
        //    //        亦不包括结尾的-----END PRIVATE KEY-----
        //    string privateKey = "{你的私钥}";
        //    byte[] keyData = Convert.FromBase64String(privateKey);

        //    var rsa = RSA.Create();
        //    rsa.ImportPkcs8PrivateKey(keyData, out _);
        //    byte[] data = System.Text.Encoding.UTF8.GetBytes(message);
        //    return Convert.ToBase64String(rsa.SignData(data, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1));
        //}

        protected static string Sign(string message)
        {
            //PASSWORD = "商户号"
            X509Certificate2 cert = new X509Certificate2(CerPath, mchid, X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.Exportable);
            var privateKey = cert.PrivateKey.ToXmlString(true);
            var certSerialNo = cert.SerialNumber;
            using (RSACryptoServiceProvider sha256 = new RSACryptoServiceProvider())
            {
                byte[] dataInBytes = Encoding.UTF8.GetBytes(message);
                sha256.FromXmlString(privateKey);
                byte[] inArray = sha256.SignData(dataInBytes, CryptoConfig.MapNameToOID("SHA256"));
                string sign = Convert.ToBase64String(inArray);
                return sign;
            }
        }
    }

注意，查询的时候，https://api.mch.weixin.qq.com/v3/transfer/batches/out-batch-no/"+partner_trade_no+ "?need_query_detail=True&detail_status=ALL这个True,需要大写，我第一次的时候只有need_query_detail这一个参数，总是提示参数不正确，后来加上detail_status之后，好像就行了，大家注意一下！！！！

后续遇到一些加密的问题，或者Header缺少的问题可以访问：转账金额大于2000的问题