查询交易状态

3.1) 请求地址

https://api.4pyun.com/gate/1.0/payment/trade/query

3.2) 请求方式

HTTP GET

3.3) 特殊说明

1:app_id,app_secret 用户身份id和加密密钥由平台方提供，对接方需提供公司全称然后给到商务提交给研发申请
2:pay_serial,pay_order两个参数至少传一个

3.4) 请求参数

3.5）请求示例

签名前字符串
1.1：签名前字符串
str=app_id=op009619634544&merchant=62626666666&pay_order=00202101010000060755912770312323&app_secret=6409292d66625a2a0912ac345345
1.2：MD5(str)
    sign=8FFDCC0A8C51BB92F183CAE2DD0C70D6
    @Test
    public void testPaymentQuery1(){
        TreeMap<String, String> map = new TreeMap<>();
        // app_id平台分配
        map.put("app_id", "op009619634544");
        // 停车场商户号
        map.put("merchant", "62626666666");
        // 发起支付订单号同一个app_id下唯一不能重复
        map.put("pay_order", "00202101010000060755912770312323");
        StringBuilder builder = new StringBuilder();
        for (String key : map.keySet()) {
            builder.append(key + "=" + map.get(key) + "&");
        }
        String appSecret = "6409292d66625a2a0912ac345345";
        String encriptStr = builder.toString() + "app_secret=" + appSecret;
        System.out.println(encriptStr);
        String sign = MD5.encryptHEX(encriptStr);
        String keyStr = builder.toString() + "sign=" + sign;
        System.out.println(keyStr);
        try {
            Form form = Form.form();
            for (String key : map.keySet()) {
                form.add(key, map.get(key));
            }
            form.add("sign", sign);
            Response response = Request.Get("https://api.4pyun.com/gate/1.0/payment/trade/query?"+keyStr)
                    .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();
        }
    }

3.6) 请求返回结果参数说明

3.7) 请求返回结果示例:

成功返回
{
    "code": "1001",
    "seqno": "8eb5e612ecea0fbd",
    "data_node": "CN-South/HS3-2",
    "merchant": "6262666666666",
    "pay_order": "00202101010000021312323",
    "channel": "200201",
    "pay_serial": "20210101000009123423423",
    "value": 500,
    "status": 1,
    "trade_time": "2020-12-31T16:00:15Z",
    "payer": "o1kTSt6i42h40c-B1NZZ4u-23434"
}

{
    "code": "400",
    "message": "请求参数错误",
    "hint": "参数`merchant`未传递",
    "seqno": "aef05d52317e0366",
    "data_node": "CN-South/HS3-2",
    "path": "GET /gate/1.0/payment/trade/query"
}

查询缺少必要参数
{
    "code": "500",
    "message": "处理异常:java.lang.IllegalArgumentException: `pay_serial`/`merchant`+`order` Required!",
    "seqno": "e20dd263e302ddac",
    "data_node": "CN-South/HS3-3",
    "path": "GET /gate/1.0/payment/trade/query"
}

查询失败
{
    "code": "500",
    "message": "未查询到订单记录",
    "seqno": "1c05072f5f026468",
    "data_node": "CN-South/HS3-3",
    "path": "GET /gate/1.0/payment/trade/query"
}