Spring Boot整合支付宝沙箱支付第二篇 交易查询和退款

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Spring Boot版本：2.3.4.RELEASE

在# Spring Boot整合支付宝沙箱支付中实现了支付宝沙箱支付的付款流程，这里完善一下，将交易查询和退款都做了。

其实调通沙箱支付不难，只是调用支付宝的接口。现在在原来demo的基础上，就不事无巨细的贴完整代码了，只展示关键的调用模块，具体可以看源码：

交易查询

优化一下代码，将AlipayClient对象的创建封装出来：

private AlipayClient getAlipayClient() {
    // 支付宝网关
    String serverUrl = alipayProperties.getGatewayUrl();
    // APPID
    String appId = alipayProperties.getAppId();
    // 私钥
    String privateKey = alipayProperties.getPrivateKey();
    // 格式化为 json 格式
    String format = "json";
    // 字符编码格式
    String charset = alipayProperties.getCharset();
    // 公钥，对应APPID的那个
    String alipayPublicKey = alipayProperties.getPublicKey();
    // 签名方式
    String signType = alipayProperties.getSignType();

    return new DefaultAlipayClient(serverUrl, appId, privateKey, format, charset, alipayPublicKey, signType);
}

/**
 * 交易查询
 * 传入任意参数即可：商户订单系统的唯一订单号 或 支付宝交易号
 */
public AlipayTradeQueryResponse query(AlipayQueryVo vo) throws AlipayApiException {
    // 获得初始化的AlipayClient
    AlipayClient client = getAlipayClient();

    // 设置请求参数
    AlipayTradeQueryRequest alipayRequest = new AlipayTradeQueryRequest();

    // 商户订单号，商户网站订单系统中唯一订单号
    // 支付宝交易号
    // 请二选一设置
    String orderNo = vo.getOrderNo();
    String tradeNo = vo.getTradeNo();

    JSONObject bizContent = new JSONObject();
    if (!StringUtils.isEmpty(orderNo)) {
        bizContent.put("out_trade_no", orderNo);
    } else if (!StringUtils.isEmpty(tradeNo)) {
        bizContent.put("trade_no", tradeNo);
    } else {
        throw new RuntimeException("订单号和交易号不能都为空");
    }

    alipayRequest.setBizContent(bizContent.toString());

    // 请求
    AlipayTradeQueryResponse response = client.execute(alipayRequest);
    return response;
}

退款

/**
 * 退款
 */
public AlipayTradeRefundResponse refund(AlipayRefundVo vo) throws AlipayApiException {
    // 获得初始化的AlipayClient
    AlipayClient client = getAlipayClient();

    // 设置请求参数
    AlipayTradeRefundRequest alipayRequest = new AlipayTradeRefundRequest();

    //商户订单号，商户网站订单系统中唯一订单号
    String out_trade_no = vo.getOrderNo();
    // 支付宝交易号
    String trade_no = vo.getTradeNo();
    // 请二选一设置
    // 需要退款的金额，该金额不能大于订单金额，必填
    String refund_amount = vo.getRefundAmount();
    // 退款的原因说明
    String refund_reason = vo.getRefundReason();
    // 标识一次退款请求，同一笔交易多次退款需要保证唯一，如需部分退款，则此参数必传
    String out_request_no = vo.getOutRequestNo();

    JSONObject bizContent = new JSONObject();
    if (!StringUtils.isEmpty(out_trade_no)) {
        bizContent.put("out_trade_no", out_trade_no);
    } else if (!StringUtils.isEmpty(trade_no)) {
        bizContent.put("trade_no", trade_no);
    } else {
        throw new RuntimeException("订单号和交易号不能都为空");
    }

    bizContent.put("refund_amount", refund_amount);

    if (!StringUtils.isEmpty(refund_reason)) {
        bizContent.put("refund_reason", refund_reason);
    }
    if (!StringUtils.isEmpty(out_request_no)) {
        bizContent.put("out_request_no", out_request_no);
    }

    alipayRequest.setBizContent(bizContent.toString());

    // 请求
    AlipayTradeRefundResponse response = client.execute(alipayRequest);
    return response;
}

交易查询和退款接口

// 交易查询
@PostMapping("/query")
public AlipayTradeQueryResponse query(@RequestBody AlipayQueryVo vo) throws AlipayApiException {
    return alipayService.query(vo);
}

// 退款
@PostMapping("/refund")
public AlipayTradeRefundResponse refund(@RequestBody AlipayRefundVo vo) throws AlipayApiException {
    return alipayService.refund(vo);
}

查询页面

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Document</title>
   <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.js"></script>
</head>
<body>
   <h3>交易查询页面</h3>

   <label>订单号：</label><input id="orderNo" name="orderNo" type="text" value="123"><br>
   <label>交易号：</label><input id="tradeNo" name="tradeNo" type="text" value="订单1号"><br>
   <button onclick="query()">查询</button>

   <script>
       function query() {
           var orderNo = $("#orderNo").val();
           var tradeNo = $("#tradeNo").val();

           var params = {
               "orderNo": orderNo,
               "tradeNo": tradeNo
           }

           console.log(JSON.stringify(params))

           $.ajax({
               url: 'http://localhost:8888/query',
               type: 'post',
               headers: { "Content-Type": "application/json" },
               data: JSON.stringify(params),
               success: function (result) {
                   console.log(result)
               },
               error: function (e) {
                   console.log("ajax请求出现错误: ");
                   console.log(e);
               },
           });

       }
   </script>
</body>
</html>

退款界面

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.js"></script>
</head>
<body>
    <h3>退款页面</h3>

    <label>订单号：</label><input id="orderNo" name="orderNo" type="text" value="123"><br>
    <label>交易号：</label><input id="tradeNo" name="tradeNo" type="text" value="订单1号"><br>
    <label>退款金额：</label><input id="refundAmount" name="refundAmount" type="text" value="1"><br>
    <label>退款理由：</label><input id="refundReason" name="refundReason" type="text" value="这里是退款理由"><br>
    <label>退款请求标识：</label><input id="outRequestNo" name="outRequestNo" type="text" value="退款请求标识"><br>

    <button onclick="refund()">退款</button>

    <script>
        function refund() {
            var orderNo = $("#orderNo").val();
            var tradeNo = $("#tradeNo").val();
            var refundAmount = $("#refundAmount").val();
            var refundReason = $("#refundReason").val();
            var outRequestNo = $("#outRequestNo").val();

            var params = {
                "orderNo": orderNo,
                "tradeNo": tradeNo,
                "refundAmount": refundAmount,
                "refundReason": refundReason,
                "outRequestNo": outRequestNo,
            }

            console.log(JSON.stringify(params))

            $.ajax({
                url: 'http://localhost:8888/refund',
                type: 'post',
                headers: { "Content-Type": "application/json" },
                data: JSON.stringify(params),
                success: function (result) {
                    console.log(result)
                },
                error: function (e) {
                    console.log("ajax请求出现错误: ");
                    console.log(e);
                },
            });

        }
    </script>
</body>
</html>
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