c#发起微信支付

1.项目引用 Senparc.Weixin.TenPay

2.服务端代码

      using Senparc.Weixin.TenPay;
      using Senparc.Weixin.TenPay.V3;
      using System;
      using System.Collections.Generic;
      using System.Linq;
      using System.Web;
      using System.Web.Mvc;
      namespace zzzili
      {
         public class WXPay
          {
             /// <summary>
             /// 
             /// </summary>
             /// <param name="appId">appid</param>
             /// <param name="mchId">商户id</param>
             /// <param name="body">商品描述</param>
             /// <param name="outTradeNo">第三方订单号</param>
             /// <param name="totalFee">总金额分</param>
             /// <param name="spbillCreateIp">客户端ip</param>
             /// <param name="notifyUrl">通知地址</param>
             /// <param name="openid">用户openid</param>
             /// <param name="key">商户API密钥</param>
             /// <returns></returns>
             public static Dictionary<string, object> startPay(string appId, string mchId, string body, string outTradeNo, int totalFee, string spbillCreateIp, string notifyUrl, string openid, string key)
              {
                 var timeStamp = TenPayV3Util.GetTimestamp();//时间戳
                 var nonceStr = TenPayV3Util.GetNoncestr();//随机字符串 
                  TenPayV3UnifiedorderRequestData tenPayV3 = new TenPayV3UnifiedorderRequestData(appId, mchId, body, outTradeNo, totalFee, spbillCreateIp, notifyUrl, Senparc.Weixin.TenPay.TenPayV3Type.JSAPI, openid, key, nonceStr);
                 //提交支付接口
                  UnifiedorderResult result = TenPayV3.Unifiedorder(tenPayV3);
                 string package = "prepay_id=" + result.prepay_id;
                  Dictionary<string, object> payEntity = new Dictionary<string, object>();
                  payEntity.Add("timeStamp", timeStamp);
                  payEntity.Add("nonceStr", nonceStr);
                  payEntity.Add("package", package);
                  payEntity.Add("signType", "MD5");
                  payEntity.Add("paySign", TenPayV3.GetJsPaySign(appId, timeStamp, nonceStr, package, key, "MD5"));
                 return payEntity;
              }
          }
      }
  
 

  
 
 

3.小程序端代码

      							wx.requestPayment({
     								"timeStamp": res.data.Data.timeStamp,
     								"nonceStr": res.data.Data.nonceStr,
     								"package": res.data.Data.package,
     								"signType": res.data.Data.signType,
     								"paySign": res.data.Data.paySign,
     								"success": function(res) {
      									console.log(res);
      								},
     								"fail": function(res) {
      									console.log(res);
      								},
     								"complete": function(res) {
      									console.log(res);
      								}
      							});
  
 

  
 
 

3.支付结果通知

      [HttpGet]
              [HttpPost]
             public string paynotify()
              {
                 try
                  {
                      YFLog.logInfo("PayNotify==========================start");
                      ResponseHandler resHandler = new ResponseHandler(HttpContext.Current);
                     string return_code = resHandler.GetParameter("return_code");
                     string return_msg = resHandler.GetParameter("return_msg");
                      resHandler.SetKey(wx_key);//商户APIkey
                     if (resHandler.IsTenpaySign() && return_code.ToUpper() == "SUCCESS")
                      {
                         //直到这里，才能认为交易真正成功了，可以进行数据库操作，但是别忘了返回规定格式的消息！
                         string out_trade_no = resHandler.GetParameter("out_trade_no");
                         string transaction_id = resHandler.GetParameter("transaction_id");
                         string total_fee = resHandler.GetParameter("total_fee");
                          YFLog.logInfo("PayNotifyUrl回调", "支付成功");
                      }
                     else
                      {
                          YFLog.logInfo("PayNotifyUrl回调", "支付失败");
                      }
                     return string.Format(@"<xml><return_code><![CDATA[{0}]]></return_code><return_msg><![CDATA[{1}]]></return_msg></xml>", return_code, return_msg);
                  }
                 catch (Exception ex)
                  {
                      YFLog.logInfo(ex.Message);
                     throw;
                  }
              }
  
 

  
 
 

文章来源: zzzili.blog.csdn.net，作者：清雨小竹，版权归原作者所有，如需转载，请联系作者。

原文链接：zzzili.blog.csdn.net/article/details/114631519