今年春节微信抢红包,我想各位都还记得。最近很多商家也在使用公众号给粉丝发红包,做营销活动、吸粉活动或者是反馈老用户等。
我们作为第3方开发者,就义不容辞的来给这些商家服务了。首先我们得会使用程序来写抢红包。
红包使用说明及规则,请仔细阅读
-
- (1)必须是认证过的服务号,开通了微信支付功能;在商家后台充足够多的钱来发红包。
- (2)发送频率规则
◆ 每分钟发送红包数量不得超过1800个;
◆ 北京时间0:00-8:00不触发红包赠送;(如果以上规则不满足您的需求,请发邮件至wxhongbao@tencent.com获取升级指引) - (3)红包规则
◆ 单个红包金额介于[1.00元,200.00元]之间;
◆ 同一个红包只能发送给一个用户;(如果以上规则不满足您的需求,请发邮件至wxhongbao@tencent.com获取升级指引) - (4)填写正确的AppId,Appsecret,以及微信支付的配置参数
- (5)分享接口请注意不要有诱导分享等违规行为,对于诱导分享行为将永久回收公众号接口权限,详细规则请查看:朋友圈管理常见问题 。
2核心代码分析
【1】普通红包:比如:用户关注后,公众号给粉丝派发红包。裂变红包是:用户领取红包后,还可以吧红包的链接分享到朋友圈,让朋友也能领取。
#region 红包 /// <summary> /// 目前支持向指定微信用户的openid发放指定金额红包 /// 注意total_amount、min_value、max_value值相同 /// total_num=1固定 /// 单个红包金额介于[1.00元,200.00元]之间 /// </summary> /// <returns></returns> public ActionResult SendRedPack() { string mchbillno = DateTime.Now.ToString("HHmmss") + TenPayV3Util.BuildRandomStr(28); string nonceStr = TenPayV3Util.GetNoncestr(); RequestHandler packageReqHandler = new RequestHandler(null); //设置package订单参数 packageReqHandler.SetParameter("nonce_str", nonceStr); //随机字符串 packageReqHandler.SetParameter("wxappid", TenPayV3Info.AppId); //公众账号ID packageReqHandler.SetParameter("mch_id", TenPayV3Info.MchId); //商户号 packageReqHandler.SetParameter("mch_billno", mchbillno); //填入商家订单号 packageReqHandler.SetParameter("nick_name", "提供方名称"); //提供方名称 packageReqHandler.SetParameter("send_name", "红包发送者名称"); //红包发送者名称 packageReqHandler.SetParameter("re_openid", "接受收红包的用户的openId"); //接受收红包的用户的openId packageReqHandler.SetParameter("total_amount", "100"); //付款金额,单位分 packageReqHandler.SetParameter("min_value", "100"); //最小红包金额,单位分 packageReqHandler.SetParameter("max_value", "100"); //最大红包金额,单位分 packageReqHandler.SetParameter("total_num", "1"); //红包发放总人数 packageReqHandler.SetParameter("wishing", "红包祝福语"); //红包祝福语 packageReqHandler.SetParameter("client_ip", Request.UserHostAddress); //调用接口的机器Ip地址 packageReqHandler.SetParameter("act_name", "活动名称"); //活动名称 packageReqHandler.SetParameter("remark", "备注信息"); //备注信息 string sign = packageReqHandler.CreateMd5Sign("key", TenPayV3Info.Key); packageReqHandler.SetParameter("sign", sign); //签名 //发红包需要post的数据 string data = packageReqHandler.ParseXML(); //发红包接口地址 string url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack"; //本地或者服务器的证书位置(证书在微信支付申请成功发来的通知邮件中) string cert = @"F:\apiclient_cert.p12"; //私钥(在安装证书时设置) string password = ""; ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); //调用证书 X509Certificate2 cer = new X509Certificate2(cert, password, X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.MachineKeySet); #region 发起post请求 HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url); webrequest.ClientCertificates.Add(cer); webrequest.Method = "post"; byte[] postdatabyte = Encoding.UTF8.GetBytes(data); webrequest.ContentLength = postdatabyte.Length; Stream stream; stream = webrequest.GetRequestStream(); stream.Write(postdatabyte, 0, postdatabyte.Length); stream.Close(); HttpWebResponse httpWebResponse = (HttpWebResponse)webrequest.GetResponse(); StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream()); string responseContent = streamReader.ReadToEnd(); #endregion return Content(responseContent); } #endregion
【2】裂变红包
#region 裂变红包 /// <summary> /// 目前支持向指定微信用户的openid发放指定金额红包 /// 注意total_amount、min_value、max_value值相同 /// total_num=1固定 /// 单个红包金额介于[1.00元,200.00元]之间 /// </summary> /// <returns></returns> public ActionResult SendGroupRedPack() { string mchbillno = DateTime.Now.ToString("HHmmss") + TenPayV3Util.BuildRandomStr(28); string nonceStr = TenPayV3Util.GetNoncestr(); RequestHandler packageReqHandler = new RequestHandler(null); packageReqHandler.SetParameter("nonce_str", nonceStr); //随机字符串 packageReqHandler.SetParameter("wxappid", TenPayV3Info.AppId); //公众账号ID packageReqHandler.SetParameter("mch_id", TenPayV3Info.MchId); //商户号 packageReqHandler.SetParameter("mch_billno", mchbillno); //填入商家订单号 packageReqHandler.SetParameter("send_name", "商户名称"); //红包发送者名称 packageReqHandler.SetParameter("re_openid", "接受收红包的用户的openId"); //接受收红包的用户的openId packageReqHandler.SetParameter("total_amount", "300"); //付款金额,单位分 packageReqHandler.SetParameter("total_num", "3"); //红包发放总人数 必须介于(包括)3到20之间 packageReqHandler.SetParameter("wishing", "红包祝福语"); //红包祝福语 packageReqHandler.SetParameter("amt_type", "ALL_RAND"); //红包金额设置方式ALL_RAND—全部随机,商户指定总金额和红包发放总人数,由微信支付随机计算出各红包金额 //packageReqHandler.SetParameter("amt_list", "各红包具体金额"); //各红包具体金额,自定义金额时必须设置,单位分 示例值"200|100|100" packageReqHandler.SetParameter("act_name", "活动名称"); //活动名称 packageReqHandler.SetParameter("remark", "备注信息"); //备注信息 string sign = packageReqHandler.CreateMd5Sign("key", TenPayV3Info.Key); packageReqHandler.SetParameter("sign", sign); //签名 //发红包需要post的数据 string data = packageReqHandler.ParseXML(); //发红包接口地址 string url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendgroupredpack"; //本地或者服务器的证书位置(证书在微信支付申请成功发来的通知邮件中) string cert = @"F:\apiclient_cert.p12"; //私钥(在安装证书时设置) string password = ""; ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); //调用证书 X509Certificate2 cer = new X509Certificate2(cert, password, X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.MachineKeySet); #region 发起post请求 HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url); webrequest.ClientCertificates.Add(cer); webrequest.Method = "post"; byte[] postdatabyte = Encoding.UTF8.GetBytes(data); webrequest.ContentLength = postdatabyte.Length; Stream stream; stream = webrequest.GetRequestStream(); stream.Write(postdatabyte, 0, postdatabyte.Length); stream.Close(); HttpWebResponse httpWebResponse = (HttpWebResponse)webrequest.GetResponse(); StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream()); string responseContent = streamReader.ReadToEnd(); #endregion return Content(responseContent); } #endregion
【3】红包查询
#region 红包查询接口 public ActionResult GetHBInfo(string mchbillno) { string nonceStr = TenPayV3Util.GetNoncestr(); RequestHandler packageReqHandler = new RequestHandler(null); packageReqHandler.SetParameter("nonce_str", nonceStr); //随机字符串 packageReqHandler.SetParameter("appid", TenPayV3Info.AppId); //公众账号ID packageReqHandler.SetParameter("mch_id", TenPayV3Info.MchId); //商户号 packageReqHandler.SetParameter("mch_billno", mchbillno); //填入商家订单号 packageReqHandler.SetParameter("bill_type", "MCHT"); //红包发送者名称 string sign = packageReqHandler.CreateMd5Sign("key", TenPayV3Info.Key); packageReqHandler.SetParameter("sign", sign); //签名 //发红包需要post的数据 string data = packageReqHandler.ParseXML(); //发红包接口地址 string url = "https://api.mch.weixin.qq.com/mmpaymkttransfers/gethbinfo"; //本地或者服务器的证书位置(证书在微信支付申请成功发来的通知邮件中) string cert = @"F:\apiclient_cert.p12"; //私钥(在安装证书时设置) string password = ""; ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); //调用证书 X509Certificate2 cer = new X509Certificate2(cert, password, X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.MachineKeySet); #region 发起post请求 HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url); webrequest.ClientCertificates.Add(cer); webrequest.Method = "post"; byte[] postdatabyte = Encoding.UTF8.GetBytes(data); webrequest.ContentLength = postdatabyte.Length; Stream stream; stream = webrequest.GetRequestStream(); stream.Write(postdatabyte, 0, postdatabyte.Length); stream.Close(); HttpWebResponse httpWebResponse = (HttpWebResponse)webrequest.GetResponse(); StreamReader streamReader = new StreamReader(httpWebResponse.GetResponseStream()); string responseContent = streamReader.ReadToEnd(); #endregion return Content(responseContent); } #endregion
红包活动常见的玩法有:关注送红包,签到红包(每日一次抢红包);打开网页送红包(当然网页得有其他的信息啦)。