调用企业微信接口发送消息

StringBuilder msg = new StringBuilder();
msg.Append("【客户消费订单消息提醒】"+ OrderType);

switch (OrderType)
{

case "汽车售后申请":
var returnSaleOrder= GetReturnSaleOrder(orderNo);
if (returnSaleOrder!= null)
{
var orgName = GetAreaName((returnSaleOrder.AreaGid));
msg.Append("新增汽车售后申请,");
msg.Append("售后片区：" + AreaName + ",");
msg.Append("售后订单： " + returnSaleOrder.ReturnNo + ",");
msg.Append("发起时间：" + returnSaleOrder.CreateDate);
}
break;
case "汽车购买订单":
var order = GetOrder(orderNo);
if (order != null)
{
var orgName = GetAreaName(DataConvertHelper.GetGuid(order.AreaGid));
msg.Append("汽车销售订单,");
msg.Append("销售片区：" + AreaName + ",");
msg.Append("销售订单号： " + order.OrderNo + ",");
msg.Append("购买交易时间：" + order.PayDate);
}
break;
}

var sendMsg = msg.ToString();
//向不同配置企业微信人员发送服务通知消息
foreach (var  item  in IPAddressNotice.Split(","))
                    {
                        
                        var info = new MessageHelper();
                        info.Touser = item  ;
                        info.QyWxSend(sendMsg);
                    }

public MessageHelper()
        {
            var config = GetConfig("QyWx");
            if (config != null)
            {
                this.Identify = config["Identify"]; //商户名称
                this.Agentid = config["Agentid"];//企业应用ID
                this.Touser = config["Touser"];  //商户企业微信号成员
                this.ServiveUrl = config["ServiveUrl"]; //商户企业微信服务地址
            }
        }

/// <summary>
        /// 发送企业微信
        /// </summary>
        /// <param name="Message"></param>
        /// <returns></returns>
        public string QyWxSend(string Message)
        {
            string responseString = string.Empty;

            var requestData = new StringBuilder();
            requestData.Append("<?xml version="1.0" encoding="utf-8"?>");
            requestData.Append("<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">");
            requestData.Append("<soap12:Body>");
            requestData.Append("<SendMessage xmlns="http://gongsi.com/">");
            requestData.Append("<identify>" + this.Identify + "</identify>");
            requestData.Append("<agentid>" + this.Agentid + "</agentid>");
            requestData.Append("<touser>" + this.Touser + "</touser>");
            requestData.Append("<content>" + Message + "</content>");
            requestData.Append("</SendMessage>");
            requestData.Append("</soap12:Body>");
            requestData.Append("</soap12:Envelope>");

            WebClient webClient = new WebClient();
            byte[] postData = Encoding.UTF8.GetBytes(requestData.ToString());

            string serviveUrl = this.ServiveUrl;

            webClient.Headers.Add("Content-Type", "application/soap+xml");
            webClient.Headers.Add("ContentLength", postData.Length.ToString());
            try
            {
                byte[] responseData = webClient.UploadData(serviveUrl, "POST", postData);
                responseString= Encoding.UTF8.GetString(responseData);
            }
            catch (Exception ex)
            {
                var response = new DataResponse
                {
                    Exception = new ExceptionModel(ex)
                };
                responseString= JsonHelper.SerializeObject(response);
            }
            return responseString
        }

      /// <summary>
        /// 发送企业微信消息  可多人 逗号间隔
        /// </summary>
        /// <param name="Message"></param>
        /// <returns></returns>
        public string QyWxSendMore(string Users,string Message)
        {
            string responseString = string.Empty;

            var requestData = new StringBuilder();
            requestData.Append("<?xml version="1.0" encoding="utf-8"?>");
            requestData.Append("<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">");
            requestData.Append("<soap12:Body>");
            requestData.Append("<SendMessageList xmlns="http://gongsi.com/">");
            requestData.Append("<identify>" + this.Identify + "</identify>");
            requestData.Append("<agentid>" + this.Agentid + "</agentid>");
            requestData.Append("<TouserList>" + Users + "</TouserList>");
            requestData.Append("<content>" + Message + "</content>");
            requestData.Append("</SendMessageList>");
            requestData.Append("</soap12:Body>");
            requestData.Append("</soap12:Envelope>");

            WebClient webClient = new WebClient();
            byte[] postData = Encoding.UTF8.GetBytes(requestData.ToString());

            string serviveUrl = this.ServiveUrl;

            webClient.Headers.Add("Content-Type", "application/soap+xml");
            webClient.Headers.Add("ContentLength", postData.Length.ToString());
            try
            {
                byte[] responseData = webClient.UploadData(serviveUrl, "POST", postData);
                responseString = Encoding.UTF8.GetString(responseData);
            }
            catch (Exception ex)
            {
                var response = new DataResponse
                {
                    Exception = new ExceptionModel(ex)
                };
                responseString =JsonHelper.SerializeObject(response);
            }
            return responseString;
        }