NCF 如何写微信支付中的APP支付

简介

微信支付想必大家耳熟能祥，使用的地方太多了，今天我们用几分钟的时间来写一个微信支付的案例给到大家，希望大家能够使用NCF快速的对接APP支付

今天我们讲解到的是微信支付V2开发文档中的使用方法

参考文档

微信支付V2开发文档：https://pay.weixin.qq.com/wiki/doc/api/index.html

NCF仓库地址：https://github.com/NeuCharFramework/NCF (要Star哦)

步骤

1.下载NCF

2.创建自己的XNCF模块

3.引用Nuget包ML.ThirdParty & ML.Common.SDK

4.建立自己的Controller，并创建接口方法

5.调用代码返回数据给前端

6.前端拿数据吊起支付

案例

1.直接到Github上下载NCF的源码master分支

2.请参考NCF开发文档中的创建XNCF模块

3.项目中引入

    <ItemGroup>
        <PackageReference Include="ML.Common.SDK" Version="1.0.2.8" />
        <PackageReference Include="ML.ThirdParty" Version="1.0.2" />
    </ItemGroup>

4.建立自己的Controller，并创建方法

//引用相关命名空间
using ML.Common.SDK;
using ML.ThirdParty.Wechat;

        /// <summary>
        /// 微信支付
        /// </summary>
        /// <param name="openId">用户的微信OpenId</param>
        /// <param name="userId">用户Id</param>
        /// <param name="body">内容</param>
        /// <param name="totalFee">支付的总金额</param>
        /// <returns></returns>
        [HttpPost]
        public async Task<IActionResult> WxPayAsync(string openId,string userId,string body, int totalFee)
        {
            try
            {
                //ML 方案
                WechatPayHelper wxpay = new WechatPayHelper();
                WechatPaymentParam wxpayParam = new WechatPaymentParam();
                wxpayParam.appid = "wx2y0svtzsngwduix6";
                wxpayParam.mch_id = "0165355078";
                wxpayParam.attach = $"userId={userId};totalFee={totalFee.ToString()}";
                wxpayParam.body = body;
                wxpayParam.total_fee = totalFee.ToString();
                wxpayParam.notify_url = "https://www.weixin.com/api/v1/payment/wxNotifyUrl";
                wxpayParam.trade_type = "APP";
                wxpayParam.openid = openId;
                string strOutTradeNo = "";
                var result = wxpay.Payment(wxpayParam, "5hJpKkSaOoWVqET1Gfl7Q3RUEBLTu9kP", out strOutTradeNo);
                SenparcTrace.Log($"result----{result},sign={strOutTradeNo}");
                result = result.Replace("<![CDATA[", "").Replace("]]>", "").Replace("
", "");
                DataTable dtWxPayResponse = XMLHelper.XMLToDataTable(result);
                var response = dtWxPayResponse.ToJson().Replace("}]", $","timestamp":"{DateTimeHelper.ConvertToJavaScriptUnix(DateTime.Now)}"}}]");

                MakeCallPaymentParam mcpp = new MakeCallPaymentParam();
                mcpp.appid = "wx2y0svtzsngwduix6";
                mcpp.partnerid = "0165355078";
                mcpp.prepayid = dtWxPayResponse.Rows[0]["prepay_id"].ToString();
                mcpp.package = "Sign=WXPay";
                mcpp.noncestr = "";
                mcpp.timestamp = "";
                string strSign = "";
                var data = wxpay.MakeCallPayment(mcpp, "5hJpKkSaOoWVqET1Gfl7Q3RUEBLTu9kP", out strSign);
                string rp = XMLHelper.XMLToDataTable(WechatPayHelper.FormatParamToXML(data)).ToJson();
                return Success(rp);
            }
            catch (Exception ex)
            {
                return Fail(ex.Message);
            }
        }        

5.调用代码返回数据（即4中返回的rp的数据）给前端

6.前端拿数据吊起支付

结语

 按照上面的方法让你瞬间解决微信APP支付的难题，欢迎大家交流，欢迎Star，欢迎关注