支付宝支付开发——当面付条码支付和扫码支付实例

本文介绍支付宝中当面付下属的条码支付、扫码支付、订单查询、退款申请的集成开发过程。

本文分为以下五个部分：

• 条码支付和扫码支付介绍
• 申请应用
• 密钥生成及配置
• API及SDK集成
• 条码支付、扫码支付、订单查询、退款申请

 一、条码支付及二维码支付介绍

1. 条码支付
条码支付是支付宝给到线下传统行业的一种收款方式。商家使用扫码枪等条码识别设备扫描用户支付宝钱包上的条码/二维码，完成收款。用户仅需出示付款码，所有收款操作由商家端完成。其使用场景如下：
业务流程：

使用步骤：

1. 用户登陆支付宝钱包，点击首页“付款”，进入付款码界面；
2. 收银员在商家收银系统操作生成订单，用户确认支付金额；
3. 用户出示钱包的“付款码”，收银员用扫码设备来扫描用户手机上的条码/二维码后，商家收银系统提交支付；
4. 付款成功后商家收银系统会拿到支付成功或者失败的结果。

2. 扫码支付

扫码支付，指用户打开支付宝钱包中的“扫一扫”功能，扫描商家展示在某收银场景下的二维码并进行支付的模式。该模式适用于线下实体店支付、面对面支付等场景。

其使用场景如下：
业务流程：

使用步骤：

1. 用户登陆支付宝钱包，点击首页“付款-扫码付”，进入扫一扫界面；
2. 收银员在商家收银系统操作生成支付宝订单，用户确认支付金额，并生成二维码；
3. 用户使用钱包的“扫码付”，扫收银员提供的二维码，确认支付；
4. 用户付款后商家收银系统会拿到支付成功或者失败的结果。

二、接口申请

企业在申请企业支付宝之后，进行功能申请并签约，然后在蚂蚁金服开放平台中申请应用如下（详细过程就略了）
然后在功能列表中，申请当面付这一功能，申请成功后如下。
这样，我们就有了当面付的权限了。

三、密钥生成

在支付宝当面付的接口中，使用了非对称加密算法，商户自己的公钥和私钥需要自己使用OpenSSL手动生成。对这些概念比较陌生的话，请先自行先了解一下密码学的相关知识。OpenSSL也可以从方倍工作室博客中找到。

下载支付宝官方提供的密钥生成工具OpenSSL，然后执行以下命令就可以生成公钥和私钥。
其中

genrsa -out rsa_private_key.pem 1024

是用于生成RSA私钥，执行后在程序目录中生成一个文件rsa_private_key.pem，其内容如下

-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

命令

rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem

是用于生成RSA公钥，执行后在程序目录中生成一个文件rsa_public_key.pem，其内容如下

-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCyffRONGd8Q/1kRh1cpsSRi360
DXLHI7zxdPJGYe5HKDWF7u9b3zZU9erZpM90XE7gZRKsxIgOurH4uqhmVRbto3e+
LiYOyNpd6As3Q427KCTIT7ajhHicZ6GWhegTUiVLqiuWLsauQcbI6DO4GEZrlvAd
zus0WcJiJOxW02rxSQIDAQAB
-----END PUBLIC KEY-----

生成的这个RSA公钥，需要填写到应用中去，填写地址如下所示。私钥不需要填到配置中，到时候配置到代码中。
特别注意，密钥要去掉注释部分，且转换成一行字符，否则回车换行也成为密钥的一部分，将导致无法正常加解密。
同时，可以点击 “查看支付宝公钥”，将支付宝的公钥复制保存下来，后面的程序中将需要用到。

四、密钥生成API与密钥配置
公共参数

请求地址：

公共请求参数：

请求参数

公共响应参数

响应参数

系统中配置如下

<?php
$config = array (
 //支付宝公钥
 'alipay_public_key' => "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDDI6d306Q8fIfCOaTXyiUeJHkrIvYISRcc73s3vF1ZT7XN8RNPwJxo8pWaJMmvyTn9N4HQ632qJBVHf8sxHi/fEsraprwCtzvzQETrNRwVxLO5jVmRGi60j8Ue1efIlzPXV9je9mkjzOmdssymZkh2QhUrCmZYI/FCEa3/cNMW0QIDAQAB",

 //商户私钥
 'merchant_private_key' => "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",

 //编码格式
 'charset' => "UTF-8",

 //支付宝网关
 'gatewayUrl' => "https://openapi.alipay.com/gateway.do",

 //应用ID
 'app_id' => "2016061501500000",

 //异步通知地址,只有扫码支付预下单可用
 'notify_url' => "http://www.fangbei.org/alipay/notify.html",

 //最大查询重试次数
 'MaxQueryRetry' => "10",

 //查询间隔
 'QueryDuration' => "3"
);

其中支付宝公钥就是在前面中复制保存的，直接复制到程序中即可，而商户私钥是之前OpenSSL中生成的私钥。APPID是该服务的id号。

而这个异步通知将会接收扫码支付结果的通知。

五、条码支付、扫码支付、订单查询、退款申请

1. 条码支付

条码支付的参数配置如下

// (必填) 商户网站订单系统中唯一订单号，64个字符以内，只能包含字母、数字、下划线，
// 需保证商户系统端不能重复，建议通过数据库sequence生成，
$outTradeNo = "barpay" . date('Ymdhis') . mt_rand(100, 1000);
$subject = "方倍工作室-支付宝-当面付-扫码支付";
$totalAmount = 0.01; // (必填) 订单总金额，单位为元，不能超过1亿元

// (必填) 付款条码，用户支付宝钱包手机app点击“付款”产生的付款条码
$authCode = $_POST['auth_code']; //28开头18位数字

// 支付超时，线下扫码交易定义为5分钟
$timeExpress = "5m";

// 创建请求builder，设置请求参数
$barPayRequestBuilder = new AlipayTradePayContentBuilder();
$barPayRequestBuilder->setOutTradeNo($outTradeNo);
$barPayRequestBuilder->setTotalAmount($totalAmount);
$barPayRequestBuilder->setAuthCode($authCode);
$barPayRequestBuilder->setTimeExpress($timeExpress);
$barPayRequestBuilder->setSubject($subject);
// 调用barPay方法获取当面付应答
$barPay = new AlipayTradeService($config);
$barPayResult = $barPay->barPay($barPayRequestBuilder);

switch ($barPayResult->getTradeStatus()) {
 case "SUCCESS":
  echo "支付宝支付成功:" . "<br>--------------------------<br>";
  print_r($barPayResult->getResponse());
  break;
 case "FAILED":
  echo "支付宝支付失败!!!" . "<br>--------------------------<br>";
  if (!empty($barPayResult->getResponse())) {
   print_r($barPayResult->getResponse());
  }
  break;
 case "UNKNOWN":
  echo "系统异常，订单状态未知!!!" . "<br>--------------------------<br>";
  if (!empty($barPayResult->getResponse())) {
   print_r($barPayResult->getResponse());
  }
  break;
 default:
  echo "不支持的交易状态，交易返回异常!!!";
  break;
}
 return;
}

程序监测，最终提交的url如下

https://openapi.alipay.com/gateway.do?app_id=2016061501500000&version=1.0&format=json&sign_type=RSA&method=alipay.trade.pay&timestamp=2016-08-26+17%3A14%3A52&auth_token=&alipay_sdk=alipay-sdk-php-20160411&terminal_type=&terminal_info=&prod_code=&notify_url=&charset=UTF-8&app_auth_token=&sign=EMVoBAhPkW6B1m%2BoXytdbUpIxnIAq73jtiPhlH2VUYy4OcJQ2UiVTXWttw0y%2B7UEXHWILY8fYRDoNrJWSjBATrAqbGCLpPc4YBQSwtPCb%2F76d65dMQEyrEnk2sgcqhxCiJNKRoQjgAQmBQdHneerU7SwSNJ%2FfF%2F025yltZk5lzQ%3D

发送的json数据如下：

{
 "scene":"bar_code",
 "out_trade_no":"barpay20160826051452680",
 "total_amount":0.01,
 "auth_code":"289743098358423535",
 "timeout_express":"5m",
 "subject":"方倍工作室-支付宝-当面付-扫码支付"
}

接收到的数据如下

{
 "alipay_trade_pay_response":{
  "code":"10000",
  "msg":"Success",
  "buyer_logon_id":"118***@qq.com",
  "buyer_pay_amount":"0.01",
  "buyer_user_id":"2088002364008751",
  "fund_bill_list":[
   {
    "amount":"0.01",
    "fund_channel":"ALIPAYACCOUNT"
   }
  ],
  "gmt_payment":"2016-08-26 17:14:59",
  "invoice_amount":"0.01",
  "open_id":"20880044751374809757987911112575",
  "out_trade_no":"barpay20160826051452680",
  "point_amount":"0.00",
  "receipt_amount":"0.01",
  "total_amount":"0.01",
  "trade_no":"2016082621001004750244100034"
 },
 "sign":"pEDeMwh6x73t9LmWrZpGnVb1npnKtODw6+8MDUTurNPVWXR1JHT+x3cRt2G4SDNHzxkJTzSpUXjNylsWisRTnQJJzqRP5XMujxmaAHP/d5xXeyWasDag5Cj7yGD7t80buDAsdE4eoqQ6ox7KzJ6LwKcphOX13tI+Ukt1dGCQS5o="
}

2. 扫码支付
扫码支付的参数配置如下

// (必填) 商户网站订单系统中唯一订单号，64个字符以内，只能包含字母、数字、下划线，
// 需保证商户系统端不能重复，建议通过数据库sequence生成，
$outTradeNo = "qrpay".date('Ymdhis').mt_rand(100,1000);
$subject = "方倍工作室-支付宝-当面付-扫码支付";
$totalAmount = "0.01";

// 支付超时，线下扫码交易定义为5分钟
$timeExpress = "5m";

// 创建请求builder，设置请求参数
$qrPayRequestBuilder = new AlipayTradePrecreateContentBuilder();
$qrPayRequestBuilder->setOutTradeNo($outTradeNo);
$qrPayRequestBuilder->setTotalAmount($totalAmount);
$qrPayRequestBuilder->setTimeExpress($timeExpress);
$qrPayRequestBuilder->setSubject($subject);

// 调用qrPay方法获取当面付应答
$qrPay = new AlipayTradeService($config);
$qrPayResult = $qrPay->qrPay($qrPayRequestBuilder);

// 根据状态值进行业务处理
switch ($qrPayResult->getTradeStatus()){
 case "SUCCESS":
  echo "支付宝创建订单二维码成功:"."<br>---------------------------------------<br>";
  $response = $qrPayResult->getResponse();
  $qrcode = $qrPay->create_erweima($response->qr_code);
  echo $qrcode;
  print_r($response);

  break;
 case "FAILED":
  echo "支付宝创建订单二维码失败!!!"."<br>--------------------------<br>";
  if(!empty($qrPayResult->getResponse())){
   print_r($qrPayResult->getResponse());
  }
  break;
 case "UNKNOWN":
  echo "系统异常，状态未知!!!"."<br>--------------------------<br>";
  if(!empty($qrPayResult->getResponse())){
   print_r($qrPayResult->getResponse());
  }
  break;
 default:
  echo "不支持的返回状态，创建订单二维码返回异常!!!";
  break;
}

生成的提交请求URL如下

https://openapi.alipay.com/gateway.do?app_id=2016061501500000&version=1.0&format=json&sign_type=RSA&method=alipay.trade.precreate&timestamp=2016-08-26+17%3A38%3A13&auth_token=&alipay_sdk=alipay-sdk-php-20160411&terminal_type=&terminal_info=&prod_code=&notify_url=http%3A%2F%2F123.daoqidata.com%2Fweixin%2Frawpost.php&charset=UTF-8&app_auth_token=&sign=ayYiJRZ63RomVEt8Ayz58Uiyv3y5IrbbX8CTfX6zNHkT%2Fu11U7ISUYWCXjrwrwCo2Oq2tdo%2FjtuhrBbDp5ULnTmuBBUktQDCCF53PF5yiUDGikxUPFYugeUrTg3gw4DqxOiNKM6ZB6MI0n%2F9M78a%2FnP8GtZ4WthyHIl%2B%2FozSyT4%3D

发送的json数据如下：

{
 "out_trade_no":"qrpay20160826053813582",
 "total_amount":"0.01",
 "timeout_express":"5m",
 "subject":"方倍工作室-支付宝-当面付-扫码支付"
}

返回的数据如下：

{
 "alipay_trade_precreate_response":{
  "code":"10000",
  "msg":"Success",
  "out_trade_no":"qrpay20160826053813582",
  "qr_code":"https://qr.alipay.com/bax00885xbhszseo9l7p404d"
 },
 "sign":"VfNTGo2WMZ+2CE1L05lNYWtFn4inHXO/tUaBZIBHN4fPlXnCvyc9IhS8S7wa3FYw23G30luEPEHkZWobnfpUjILonmExZVElHv3ylINz+Q2mQ5M8Sb/d61YPvf4Bgy1OvlrT4D3H/i3judmzEDBrOyFN9kB9vSkKaYC+b6L41Zw="
}

其中的https://qr.alipay.com/bax00885xbhszseo9l7p404d 就是二维码链接地址，使用接口将其成二维码后。
当支付宝用户扫码的时候，接口通知将收到如下数据

{
 "notify_id":"4c2c04c3cc50e978d44212febe7c3f0lse",
 "seller_email":"pay***@fangbei.org",
 "notify_type":"trade_status_sync",
 "sign":"R0iRdYmSQ0+zuSUGLzkutHcR40hoOp+CcKojVBCMa1uji3rqQFe5XeHoJB1nMBCApE3zXPKhXMdLis109ngPbGy+NUEBR7YZjYuR/hXq3WXeYfZ8aiWLvloZHrF7dQWxDho/VHYexaLeqvRi/03m0HxrwhZKUOu1eS9wMgZOlqQ=",
 "trade_no":"2016082621001004750241229810",
 "buyer_id":"2088002364008751",
 "app_id":"2016061501500000",
 "gmt_create":"2016-08-26 18:20:37",
 "out_trade_no":"qrpay20160826062009757",
 "seller_id":"2088421202724253",
 "notify_time":"2016-08-26 18:20:37",
 "subject":"方倍工作室-支付宝-当面付-扫码支付",
 "trade_status":"WAIT_BUYER_PAY",
 "open_id":"20880044751374809757987911112575",
 "total_amount":"0.01",
 "sign_type":"RSA",
 "buyer_logon_id":"118***@qq.com"
}

当用户输入密码付款成功之后，将收到如下数据

{
 "fund_bill_list":"[{"amount":"0.01","fundChannel":"ALIPAYACCOUNT"}]",
 "subject":"方倍工作室-支付宝-当面付-扫码支付",
 "trade_no":"2016082621001004750241229810",
 "gmt_create":"2016-08-26 18:20:37",
 "notify_type":"trade_status_sync",
 "total_amount":"0.01",
 "out_trade_no":"qrpay20160826062009757",
 "invoice_amount":"0.01",
 "open_id":"20880044751374809757987911112575",
 "seller_id":"2088421202724253",
 "notify_time":"2016-08-26 18:20:50",
 "trade_status":"TRADE_SUCCESS",
 "gmt_payment":"2016-08-26 18:20:50",
 "seller_email":"pay***@fangbei.org",
 "receipt_amount":"0.01",
 "buyer_id":"2088002364008751",
 "app_id":"2016061501500000",
 "notify_id":"56f97611ee609f46384b188b409e75else",
 "buyer_logon_id":"118***@qq.com",
 "sign_type":"RSA",
 "buyer_pay_amount":"0.01",
 "sign":"nf/KJryACk0utqlNrnuYMiSnYw6HsxqpJPk2O5MhCZ+wZUVQbrD3sq5POO3GU7LSRoSiUUIO4JEYEL12Ek2+w3lTcLS9WEi60sYowPOcJEYGmVfNZbVR6+k7yO5au2WIkM3MKsxm2XxIB9xPMmRDACGhvqZ2BXUAQujkPk1FT0s=",
 "point_amount":"0.00"
}

3. 订单查询

订单查询的参数配置如下

////获取商户订单号
$out_trade_no = trim($_POST['out_trade_no']);

//第三方应用授权令牌,商户授权系统商开发模式下使用
$appAuthToken = "";//根据真实值填写

//构造查询业务请求参数对象
$queryContentBuilder = new AlipayTradeQueryContentBuilder();
$queryContentBuilder->setOutTradeNo($out_trade_no);

$queryContentBuilder->setAppAuthToken($appAuthToken);

//初始化类对象，调用queryTradeResult方法获取查询应答
$queryResponse = new AlipayTradeService($config);
$queryResult = $queryResponse->queryTradeResult($queryContentBuilder);

//根据查询返回结果状态进行业务处理
switch ($queryResult->getTradeStatus()){
 case "SUCCESS":
  echo "支付宝查询交易成功:"."<br>--------------------------<br>";
  print_r($queryResult->getResponse());
  break;
 case "FAILED":
  echo "支付宝查询交易失败或者交易已关闭!!!"."<br>--------------------------<br>";
  if(!empty($queryResult->getResponse())){
   print_r($queryResult->getResponse());
  }
  break;
 case "UNKNOWN":
  echo "系统异常，订单状态未知!!!"."<br>--------------------------<br>";
  if(!empty($queryResult->getResponse())){
   print_r($queryResult->getResponse());
  }
  break;
 default:
  echo "不支持的查询状态，交易返回异常!!!";
  break;
}

最终提交的url如下

https://openapi.alipay.com/gateway.do?app_id=2016061501500000&version=1.0&format=json&sign_type=RSA&method=alipay.trade.query&timestamp=2016-08-26+18%3A27%3A07&auth_token=&alipay_sdk=alipay-sdk-php-20160411&terminal_type=&terminal_info=&prod_code=&notify_url=&charset=UTF-8&app_auth_token=&sign=eIuYJtes95quAN3X9eXbQzBa%2FCvm5QgQ0ToUsS8MSkCjhZACYpnU7ZT5MuD31lPZPFHVEjCKsdWiq4tuNtJPFPxirg7pkTiT09C%2Bz8PsUA844Y7hjkkX%2B4CVZcGtO11m3Ap0JECrtZW8hhJTE9bPY1v43X2BSL5Cp3Ulpac1FsM%3D

发送的json数据如下：

{
 "out_trade_no":"qrpay20160826053813582"
}

接收到的数据如下

{
 "alipay_trade_query_response":{
  "code":"10000",
  "msg":"Success",
  "buyer_logon_id":"118***@qq.com",
  "buyer_pay_amount":"0.01",
  "buyer_user_id":"2088002364008751",
  "fund_bill_list":[
   {
    "amount":"0.01",
    "fund_channel":"ALIPAYACCOUNT"
   }
  ],
  "invoice_amount":"0.01",
  "open_id":"20880044751374809757987911112575",
  "out_trade_no":"qrpay20160826053813582",
  "point_amount":"0.00",
  "receipt_amount":"0.01",
  "send_pay_date":"2016-08-26 17:38:58",
  "total_amount":"0.01",
  "trade_no":"2016082621001004750239053830",
  "trade_status":"TRADE_SUCCESS"
 },
 "sign":"E2MxjdAhW/EqRFNkZgy/Y//dA5Cmb54Hnqa0cjBz+ZcFTULi1lvFms93onP7cpVK/fI7YxbkZTKBPk29o4aeWKXlSYCrT92domAyqahzYCA7/5A3Msc/awALYrFOdWyJJdlncWdFRN9hx52iVRIjxvLJ0hIMVIQqEDavG28HPbo="
}

4. 订单退款

订单退款的参数配置如下

$out_trade_no = trim($_POST['out_trade_no']);
$refund_amount = trim($_POST['refund_amount']);
$out_request_no = trim($_POST['out_request_no']);

//第三方应用授权令牌,商户授权系统商开发模式下使用
$appAuthToken = "";//根据真实值填写

//创建退款请求builder,设置参数
$refundRequestBuilder = new AlipayTradeRefundContentBuilder();
$refundRequestBuilder->setOutTradeNo($out_trade_no);
$refundRequestBuilder->setRefundAmount($refund_amount);
$refundRequestBuilder->setOutRequestNo($out_request_no);

$refundRequestBuilder->setAppAuthToken($appAuthToken);

//初始化类对象,调用refund获取退款应答
$refundResponse = new AlipayTradeService($config);
$refundResult = $refundResponse->refund($refundRequestBuilder);

//根据交易状态进行处理
switch ($refundResult->getTradeStatus()){
 case "SUCCESS":
  echo "支付宝退款成功:"."<br>--------------------------<br>";
  print_r($refundResult->getResponse());
  break;
 case "FAILED":
  echo "支付宝退款失败!!!"."<br>--------------------------<br>";
  if(!empty($refundResult->getResponse())){
   print_r($refundResult->getResponse());
  }
  break;
 case "UNKNOWN":
  echo "系统异常，订单状态未知!!!"."<br>--------------------------<br>";
  if(!empty($refundResult->getResponse())){
   print_r($refundResult->getResponse());
  }
  break;
 default:
  echo "不支持的交易状态，交易返回异常!!!";
  break;
}

最终提交的url如下

https://openapi.alipay.com/gateway.do?app_id=2016061501500000&version=1.0&format=json&sign_type=RSA&method=alipay.trade.refund&timestamp=2016-08-26+18%3A47%3A35&auth_token=&alipay_sdk=alipay-sdk-php-20160411&terminal_type=&terminal_info=&prod_code=&notify_url=&charset=UTF-8&app_auth_token=&sign=Y1c5qWglAQ0t3brViEtqFnIJRQMn%2Fl9vMla1xgXKcExercJopMyS2rPOHaw%2F2PJEOKJC7r9qAfDGkNq4LHzXhBrD8sxLPqImPS6aWcW9p8s%2FzC2oQCJnLfaPx6lh8veHarj4WzDayeZLA48ttoQLjuMGPrITgOXYjHHyUKdBqSs%3D

发送的json数据如下：

{
 "out_trade_no":"qrpay20160826053813582",
 "refund_amount":"0.01",
 "out_request_no":"1"
}

接收到的数据如下

{
 "alipay_trade_refund_response":{
  "code":"10000",
  "msg":"Success",
  "buyer_logon_id":"123***@qq.com",
  "buyer_user_id":"2088002364008751",
  "fund_change":"Y",
  "gmt_refund_pay":"2016-08-26 18:47:41",
  "open_id":"20880044751374809757987911112575",
  "out_trade_no":"qrpay20160826053813582",
  "refund_detail_item_list":[
   {
    "amount":"0.01",
    "fund_channel":"ALIPAYACCOUNT"
   }
  ],
  "refund_fee":"0.01",
  "send_back_fee":"0.01",
  "trade_no":"2016082621001004750239053830"
 },
 "sign":"YDNSMpX5y0rQEs0ZbfNxRFVIp8hf0W30OR74cMtwKVPO2BYee6TQC+pbnwESSZ2XSGLozTyy7o+SIa07L+FMhDv/PTt6QX1mVgQv7RhzoDkls0zDRS/5/fy9Oyj01XS1wb8Od/93iNLZDkd2yw9g0He6qGYlpcXutkmwuASd7BM="
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。