被扫交易请求

1 接口说明

微信支付宝被扫必须传auth_code注意这种情况下不传channel平台自动识别微信支付宝!

2 请求地址

POST https://papi.4pyun.com/gate/1.0/payment/trade/create

3 请求参数

4 请求示例

1. 签名前字符串

app_id=op009619631234213&auth_code=135680596336872323&body=【川A12345】在【XXXXX-停车场】于【2021-07-01 00:00:00】支付费1.00元&merchant=62626601&notify_url=https://a.b.c/notify&pay_order=11111111111&payer=o1kTSt3wG76-vZh_ORgd9Ef6MXYQ&subject=停车支付3.00元(川A12345)&value=10&app_secret=6409292d666251341234213

2. MD5(str)

sign=8E0050337ACD79D9FFA44CFCFD6A2919

3. Java 请求示例（表单提交）

支付接口请使用支付接入网关 https://papi.4pyun.com，详见网关与环境。

@Test
public void testPaymentCreateAuthCode() {
    // 支付接口使用支付接入网关
    String gateway = "https://papi.4pyun.com";
    String appId = "op009619631234213";
    String appSecret = "6409292d666251341234213";

    TreeMap<String, String> map = new TreeMap<>();
    // app_id平台分配
    map.put("app_id", appId);
    // 停车场商户号
    map.put("merchant", "62626601");
    // 发起支付订单号同一个app_id下唯一不能重复
    map.put("pay_order", "11111111111");
    // 商品名称
    map.put("subject", "停车支付3.00元(川A12345)");
    // 商品描述
    map.put("body", "【川A12345】在【XXXXX-停车场】于【2021-07-01 00:00:00】支付费0.10元");
    // 支付金额, 单位分
    map.put("value", "10");
    // 扫码得到的值
    map.put("auth_code", "135680596336872323");
    // 后端支付回调地址
    map.put("notify_url", "https://a.b.c/notify");

    StringBuilder builder = new StringBuilder();
    for (Map.Entry<String, String> entry : map.entrySet()) {
        builder.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
    }

    String encryptStr = builder.toString() + "app_secret=" + appSecret;
    String sign = MD5.encryptHEX(encryptStr);

    Form form = Form.form();
    for (Map.Entry<String, String> entry : map.entrySet()) {
        form.add(entry.getKey(), entry.getValue());
    }
    form.add("sign", sign);

    try {
        Response response = Request.Post(gateway + "/gate/1.0/payment/trade/create")
                .bodyForm(form.build(), Charset.forName("utf-8"))
                .execute();
        HttpResponse response1 = response.returnResponse();
        System.out.println(response1.getStatusLine());
        String text = IOUtils.toString(response1.getEntity().getContent(), "utf-8");
        System.out.println(text);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

5 响应参数

6 响应示例

被扫正常返回扣款已经受理
{
    "code": "1000",
    "seqno": "9ce2f9ac8816496d",
    "data_node": "CN-South/HS3-2",
    "trade": "",
    "pay_serial": "20210712215150075521111111"
}

被扫扣款成功
{
    "code": "1001",
    "seqno": "9ce2f9ac8816496d",
    "data_node": "CN-South/HS3-2",
    "trade": "",
    "pay_serial": "20210712215150075521111111"
}

参数错误
{
    "code": "400",
    "message": "请求参数错误",
    "hint": "`merchant` Required!",
    "seqno": "94929a9b0874aa46",
    "data_node": "CN-South/HS3-2",
    "path": "POST /gate/1.0/payment/trade/create"
}

扣款错误
{
    "code": "500",
    "message": "订单号已存在",
    "seqno": "93128ddd750dc90e",
    "data_node": "CN-South/HS3-3",
    "path": "POST /gate/1.0/payment/trade/create"
}