对接浦发银行支付（三）-- QR扫码付

一、使用场景

扫码付，指的是支付平台，给每个用户的具体订单生成一个QR二维码，用户本人或者他人扫码付款。
付款用户可以直接识别二维码，或者下载到本地，通过微信或支付宝扫一扫识别，第二步将跳转至对应的支付页面H5–第三方支付提供。
二维码其实就是一个h5地址，既要支持微信扫，又要支持支付宝扫。

简单的流程如下：
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从上述要求寻找浦发银行的支付方式，交易类型tranType，选择“OK-聚合动态码支付”。

下面将具体介绍浦发银行的扫码付。

二、扫码付接口

和jsapi支付是同一个接口，交易类型不同，且不必要openId。

接口名称：对公收款支付
接口URI：/api/corporateAccounts/payments/orders
请求方式：POST

请求报文

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terminalNo：终端号，在申请商户的时候，由浦发银行分配给我们
cmdtyDsc：商品描述
tranAmt：交易金额，单位是元
iPAdress：这个最容易踩坑，地址的英文明明是address，它偏偏要少写一个d；其次该字段在Lombok自动生成getter/setter的时候，会变成“IPAdress”。
mrchlInfmAdr：支付回调的异步通知地址
tranType：选择“OK”
mrchId：商户号，在联调接口前，先在浦发后台申请好商户（注意：不是浦发开放平台，这也是我想不明白的地方：既然有开放平台，怎么不把商户后台相关功能一并开放给商户呢？这一点还是微信商户后台做得好，真的是让银行望尘莫及了）
mrchOrdrNo：平台支付流水号，这个字段命名也是醉了（好端端的订单编号OrderNo，被他给取成了OrdrNo，每次都生怕写错了）

响应报文

tranOrdrNo：浦发银行支付流水号，需要保存至支付订单
trandDate：交易日期，本来没什么用，查询支付结果接口中需要用到它，且必传参数。
qRCdLind：二维码链接，这就是我们本文的主要成果，目标就是为了得到它。

示例报文

请求报文

{"terminalNo": "98A00162","mrchOrdrNo": "052B40408140404004512","cmdtyDsc": "商品描述","tranType": "OK","mrchId": "310319982990001","IPAdress": "127.0.0.1","mrchTm": "20240408140404","mrchlInfmAdr": "http://122.xx.xx.xx:6008/pay/api/v1/xxx/xxx","tranAmt": "0.01"
}

响应报文

{"statusCode": "0000","transNo": "04972404086861405202210686","isSbscrbFlg": "","isFlag": "","pyBnkInfo": "","totalAmt": "","clueDtl": "","byrOfAlipayAcctNO": "","actRcvAmt": "","byrPayAmt": "","usPntsPayAmt": "","toUsEstbInvAmt": "","inrChlCnlNo": "","aLPAYCdBal": "","mrchStrNm": "xxx公司","userId": "","addItInNal": "","fldData": "","clrgDate": "",# 支付中状态"ordrSt": "09","tranType": "OK","tranAmt": "0.01","thdPtySeq": "","tranOrdrNo": "1901040814042900150041165352","tranDate": "20240408","qRCdLink": "https://etest2.spdb.com.cn/msemk-cli-h5app/#/H5CompanyPay?H5Channel=400&qrCode=https%3A%2F%2Fqr.95516.com%2F03100001%2Fccas%2F129%2FOK%2F5CD652D479B73FE9BCF0BAD1241A4F65AE3E1B9E2F9E1F3CB3DADB91D27CBF52","praPayCmmFlg": "","mrchId": "310319982990001","mrchTm": "20240408140429","signature": "","sgnData": "","aLTrnCrc": "","pymtMd": "","busInfo": "","dscntAmnt": "","mdsctAmnt": "","byUserType": "","apndPyMd": "","pblcAcctId": "","trdMerMechNo": "","weChatSubMechNo": "","bussRetInfo": "","errCode": "","errInfo": "","trdChnl": "","bnkngbsnssSeqNo": "","rsrvFld1": "","rsrvFld2": "","rsrvFld3": "","rsrvFld4": "","rsrvFld5": "","rsrvFld6": "","remark": ""
}