红包功能简单介绍：
1、商户调用接口时，通过指定发送对象以及发送金额的方式发放红包，这样的方式，允许商户灵活的应用于各种各样丰富的活动场景
2、领取到红包后，用户的资金直接进入微信零钱，避免繁复的领奖流程，带给用户微信支付原生的流畅体验
现金红包官网文档地址
调用现金红包接口需要使用到证书，请前往商户平台下载证书
官网有关详细证书的介绍，点击查看
因为发送现金红包是从商户平台余额扣款，所以商户平台的账户余额必须有充足的余额
下面是调用红包接口详细代码：
1、签名的MD5加密类：
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/// <summary>/// MD5UtilHelper 的摘要说明。/// </summary>public class MD5UtilHelper{ public MD5UtilHelper() { // // TODO: 在此处添加构造函数逻辑 // } /// <summary> /// 获取大写的MD5签名结果 /// </summary> /// <param name="encypStr"></param> /// <param name="charset"></param> /// <returns></returns> public static string GetMD5(string encypStr, string charset) { string retStr; MD5CryptoServiceProvider m5 = new MD5CryptoServiceProvider(); //创建md5对象 byte[] inputBye; byte[] outputBye; //使用GB2312编码方式把字符串转化为字节数组． try { inputBye = Encoding.GetEncoding(charset).GetBytes(encypStr); } catch (Exception ex) { inputBye = Encoding.GetEncoding("GB2312").GetBytes(encypStr); } outputBye = m5.ComputeHash(inputBye); retStr = System.BitConverter.ToString(outputBye); retStr = retStr.Replace("-", "").ToUpper(); return retStr; }} |
2、处理参数的类：
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public class RequestHandler { public RequestHandler(HttpContext httpContext) { Parameters = new Hashtable(); this.HttpContext = httpContext ?? HttpContext.Current; } /// <summary> /// 密钥 /// </summary> private string Key; protected HttpContext HttpContext; /// <summary> /// 请求的参数 /// </summary> protected Hashtable Parameters; /// <summary> /// debug信息 /// </summary> private string DebugInfo; /// <summary> /// 初始化函数 /// </summary> public virtual void Init() { } /// <summary> /// 获取debug信息 /// </summary> /// <returns></returns> public String GetDebugInfo() { return DebugInfo; } /// <summary> /// 获取密钥 /// </summary> /// <returns></returns> public string GetKey() { return Key; } /// <summary> /// 设置密钥 /// </summary> /// <param name="key"></param> public void SetKey(string key) { this.Key = key; } /// <summary> /// 设置参数值 /// </summary> /// <param name="parameter"></param> /// <param name="parameterValue"></param> public void SetParameter(string parameter, string parameterValue) { if (parameter != null && parameter != "") { if (Parameters.Contains(parameter)) { Parameters.Remove(parameter); } Parameters.Add(parameter, parameterValue); } } /// <summary> /// 创建md5摘要,规则是:按参数名称a-z排序,遇到空值的参数不参加签名 /// </summary> /// <param name="key">参数名</param> /// <param name="value">参数值</param> /// key和value通常用于填充最后一组参数 /// <returns></returns> public virtual string CreateMd5Sign(string key, string value) { StringBuilder sb = new StringBuilder(); ArrayList akeys = new ArrayList(Parameters.Keys); akeys.Sort(); foreach (string k in akeys) { string v = (string)Parameters[k]; if (null != v && "".CompareTo(v) != 0 && "sign".CompareTo(k) != 0 && "key".CompareTo(k) != 0) { sb.Append(k + "=" + v + "&"); } } sb.Append(key + "=" + value); string sign = MD5UtilHelper.GetMD5(sb.ToString(), GetCharset()).ToUpper(); return sign; } /// <summary> /// 输出XML /// </summary> /// <returns></returns> public string ParseXML() { StringBuilder sb = new StringBuilder(); sb.Append("<xml>"); foreach (string k in Parameters.Keys) { string v = (string)Parameters[k]; if (Regex.IsMatch(v, @"^[0-9.]$")) { sb.Append("<" + k + ">" + v + "</" + k + ">"); } else { sb.Append("<" + k + "><![CDATA[" + v + "]]></" + k + ">"); } } sb.Append("</xml>"); return sb.ToString(); } /// <summary> /// 设置debug信息 /// </summary> /// <param name="debugInfo"></param> public void SetDebugInfo(String debugInfo) { this.DebugInfo = debugInfo; } public Hashtable GetAllParameters() { return this.Parameters; } protected virtual string GetCharset() { return this.HttpContext.Request.ContentEncoding.BodyName; } } |
3、调用现金红包处理类：
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/// <summary>/// 企业号微信支付接口/// </summary>public static class TenPay{ #region 企业向用户发红包 /// <summary> /// 用于企业向微信用户个人发红包 /// 目前支持向指定微信用户的openid个人发红包 /// </summary> /// <param name="certPassword">apiclient_cert.p12证书密码即商户号</param> /// <param name="data">微信支付需要post的xml数据</param> /// <param name="certPath">apiclient_cert.p12的证书物理位置(例如：E:\projects\文档\微信商户平台证书\商户平台API证书</param> /// <param name="timeOut"></param> /// <returns></returns> public static string Sendredpack(string data, string certPassword,string certPath, int timeOut = Config.TIME_OUT) { var urlFormat = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack"; string cert = certPath; ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); X509Certificate2 cer = new X509Certificate2(cert, certPassword, X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.MachineKeySet); var formDataBytes = data == null ? new byte[0] : Encoding.UTF8.GetBytes(data); MemoryStream ms = new MemoryStream(); ms.Write(formDataBytes, 0, formDataBytes.Length); ms.Seek(0, SeekOrigin.Begin);//设置指针读取位置 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(urlFormat); request.ClientCertificates.Add(cer); request.Method = "POST"; request.Timeout = timeOut; request.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.57 Safari/537.36"; #region 输入二进制流 if (ms != null) { ms.Position = 0; //直接写入流 Stream requestStream = request.GetRequestStream(); byte[] buffer = new byte[1024]; int bytesRead = 0; while ((bytesRead = ms.Read(buffer, 0, buffer.Length)) != 0) { requestStream.Write(buffer, 0, bytesRead); } ms.Close();//关闭文件访问 } #endregion HttpWebResponse response = (HttpWebResponse)request.GetResponse(); using (Stream responseStream = response.GetResponseStream()) { using (StreamReader myStreamReader = new StreamReader(responseStream, Encoding.GetEncoding("utf-8"))) { string retString = myStreamReader.ReadToEnd(); return retString; } } } private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { if (errors == SslPolicyErrors.None) return true; return false; } #endregion} |
4、调用现金红包接口
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#region 发送红包bool fals = false; //记录发送红包是否成功string xmlResult = null; //现金红包接口返回的xmlstring certPath = null; //证书在服务器的物理位置string data = null; //调用现金红包接口需要的数据try{ //创建支付应答对象 RequestHandler packageReqHandler = new RequestHandler(null); //初始化 packageReqHandler.Init(); string nonceStr = TenPayV3Util.GetNoncestr(); //时间戳 //设置package订单参数 packageReqHandler.SetParameter("nonce_str", nonceStr); //随机字符串，不长于32位 packageReqHandler.SetParameter("mch_billno", System.Configuration.ConfigurationManager.AppSettings["TenPayV3_MchId"] + model.JournalNumber);//商户订单号（每个订单号必须唯一）组成：mch_id+yyyymmdd+10位一天内不能重复的数字。接口根据商户订单号支持重入，如出现超时可再调用。 packageReqHandler.SetParameter("mch_id", System.Configuration.ConfigurationManager.AppSettings["TenPayV3_MchId"]); //微信支付分配的商户号 packageReqHandler.SetParameter("wxappid", System.Configuration.ConfigurationManager.AppSettings["TenPayV3_AppId"]);//微信分配的公众账号ID（企业号corpid即为此appId）。接口传入的所有appid应该为公众号的appid（在mp.weixin.qq.com申请的），不能为APP的appid（在open.weixin.qq.com申请的）。 packageReqHandler.SetParameter("send_name", "测试");//商户名称 packageReqHandler.SetParameter("re_openid", model.BankCard); //用户openid 接受红包的用户用户在wxappid下的openid packageReqHandler.SetParameter("total_amount", Convert.ToInt32((decimal)(model.Amount * 100M)).ToString(CultureInfo.InvariantCulture)); //付款金额 单位分 packageReqHandler.SetParameter("total_num", "1"); //红包发放总人数 packageReqHandler.SetParameter("wishing", "测试红包"); //红包祝福语 packageReqHandler.SetParameter("client_ip", HttpContext.Current.Request.UserHostAddress);//Ip地址 packageReqHandler.SetParameter("act_name", "测试红包");//活动名称 packageReqHandler.SetParameter("remark", "测试红包"); //备注 string sign = packageReqHandler.CreateMd5Sign("key", System.Configuration.ConfigurationManager.AppSettings["TenPayV3_Key"]); packageReqHandler.SetParameter("sign", sign); //签名 data = packageReqHandler.ParseXML(); certPath = Server.MapPath("~/") + System.Configuration.ConfigurationManager.AppSettings["certPath"]; xmlResult = Sendredpack(data, System.Configuration.ConfigurationManager.AppSettings["TenPayV3_MchId"],certPath); var res = XDocument.Parse(xmlResult); string return_code = res.Element("xml").Element("return_code").Value; if ("SUCCESS".Equals(return_code)) { string result_code = res.Element("xml").Element("result_code").Value; if ("SUCCESS".Equals(result_code)) { fals = true; } }}catch (Exception exception){}#endregion |
注意：证书所在文件夹权限，IIS必须有权限对该文件夹操作的权限。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/lx_nhs/article/details/81302387
