查询停车费用

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/parking/reminders/parking-fee \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: application/json" \
6  -d '{
7    "out_serial_number" : "PARK20260423001",
8    "plate_number" : "粤B12345",
9    "out_parking_id" : "lot_sz_tencent_001"
10  }'
11

1package com.java.demo;
2
3import com.java.utils.WXPayUtility; // 引用微信支付工具库，参考：https://pay.weixin.qq.com/doc/v3/partner/4014985777
4
5import com.google.gson.annotations.SerializedName;
6import com.google.gson.annotations.Expose;
7import okhttp3.MediaType;
8import okhttp3.OkHttpClient;
9import okhttp3.Request;
10import okhttp3.RequestBody;
11import okhttp3.Response;
12
13import java.io.IOException;
14import java.io.UncheckedIOException;
15import java.security.PrivateKey;
16import java.security.PublicKey;
17import java.util.ArrayList;
18import java.util.HashMap;
19import java.util.List;
20import java.util.Map;
21
22/**
23 * 查询停车费用
24 */
25public class QueryParkingFee {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/v3/parking/reminders/parking-fee";
29
30  public static void main(String[] args) {
31    // TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/partner/4013080340
32    QueryParkingFee client = new QueryParkingFee(
33      "19xxxxxxxx",                    // 商户号，是由微信支付系统生成并分配给每个商户的唯一标识符，商户号获取方式参考 https://pay.weixin.qq.com/doc/v3/partner/4013080340
34      "1DDE55AD98Exxxxxxxxxx",         // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/partner/4013058924
35      "/path/to/apiclient_key.pem",     // 商户API证书私钥文件路径，本地文件路径
36      "PUB_KEY_ID_xxxxxxxxxxxxx",      // 微信支付公钥ID，如何获取请参考 https://pay.weixin.qq.com/doc/v3/partner/4013038589
37      "/path/to/wxp_pub.pem"           // 微信支付公钥文件路径，本地文件路径
38    );
39
40    QueryParkingFeeRequest request = new QueryParkingFeeRequest();
41    request.outSerialNumber = "PARK20260423001";
42    request.plateNumber = "粤B12345";
43    request.outParkingId = "lot_sz_tencent_001";
44    try {
45      QueryParkingFeeResponse response = client.run(request);
46        // TODO: 请求成功，继续业务逻辑
47        System.out.println(response);
48    } catch (WXPayUtility.ApiException e) {
49        // TODO: 请求失败，根据状态码执行不同的逻辑
50        e.printStackTrace();
51    }
52  }
53
54  public QueryParkingFeeResponse run(QueryParkingFeeRequest request) {
55    String uri = PATH;
56    String reqBody = WXPayUtility.toJson(request);
57
58    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
59    reqBuilder.addHeader("Accept", "application/json");
60    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
61    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
62    reqBuilder.addHeader("Content-Type", "application/json");
63    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
64    reqBuilder.method(METHOD, requestBody);
65    Request httpRequest = reqBuilder.build();
66
67    // 发送HTTP请求
68    OkHttpClient client = new OkHttpClient.Builder().build();
69    try (Response httpResponse = client.newCall(httpRequest).execute()) {
70      String respBody = WXPayUtility.extractBody(httpResponse);
71      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
72        // 2XX 成功，验证应答签名
73        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
74            httpResponse.headers(), respBody);
75
76        // 从HTTP应答报文构建返回数据
77        return WXPayUtility.fromJson(respBody, QueryParkingFeeResponse.class);
78      } else {
79        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
80      }
81    } catch (IOException e) {
82      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
83    }
84  }
85
86  private final String mchid;
87  private final String certificateSerialNo;
88  private final PrivateKey privateKey;
89  private final String wechatPayPublicKeyId;
90  private final PublicKey wechatPayPublicKey;
91
92  public QueryParkingFee(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
93    this.mchid = mchid;
94    this.certificateSerialNo = certificateSerialNo;
95    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
96    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
97    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
98  }
99
100  public static class QueryParkingFeeRequest {
101    @SerializedName("out_serial_number")
102    public String outSerialNumber;
103  
104    @SerializedName("plate_number")
105    public String plateNumber;
106  
107    @SerializedName("out_parking_id")
108    public String outParkingId;
109  }
110  
111  public static class QueryParkingFeeResponse {
112    @SerializedName("code")
113    public String code;
114  
115    @SerializedName("message")
116    public String message;
117  
118    @SerializedName("total_amount")
119    public Long totalAmount;
120  
121    @SerializedName("parking_timestamp")
122    public Long parkingTimestamp;
123  
124    @SerializedName("parking_state")
125    public ParkingState parkingState;
126  
127    @SerializedName("pay_state")
128    public PayStatus payState;
129  
130    @SerializedName("allowed_exit_timestamp")
131    public Long allowedExitTimestamp;
132  
133    @SerializedName("next_raise_price")
134    public Long nextRaisePrice;
135  
136    @SerializedName("next_raise_timestamp")
137    public Long nextRaiseTimestamp;
138  
139    @SerializedName("payable_amount")
140    public Long payableAmount;
141  
142    @SerializedName("paid_amount")
143    public Long paidAmount;
144  }
145  
146  public enum ParkingState {
147    @SerializedName("PARKING_STATE_UNKNOWN")
148    PARKING_STATE_UNKNOWN,
149    @SerializedName("PARKING_STATE_ENTERED")
150    PARKING_STATE_ENTERED,
151    @SerializedName("PARKING_STATE_EXIT_GATE")
152    PARKING_STATE_EXIT_GATE,
153    @SerializedName("PARKING_STATE_EXITED")
154    PARKING_STATE_EXITED,
155    @SerializedName("PARKING_STATE_UNEXPECTED_CLOSE")
156    PARKING_STATE_UNEXPECTED_CLOSE
157  }
158  
159  public enum PayStatus {
160    @SerializedName("PAY_STATUS_UNKNOWN")
161    PAY_STATUS_UNKNOWN,
162    @SerializedName("PAY_STATUS_UNPAID")
163    PAY_STATUS_UNPAID,
164    @SerializedName("PAY_STATUS_PAID")
165    PAY_STATUS_PAID
166  }
167  
168}
169

1package main
2
3import (
4	"bytes"
5	"demo/wxpay_utility" // 引用微信支付工具库，参考 https://pay.weixin.qq.com/doc/v3/partner/4015119446
6	"encoding/json"
7	"fmt"
8	"net/http"
9	"net/url"
10)
11
12func main() {
13	// TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/partner/4013080340
14	config, err := wxpay_utility.CreateMchConfig(
15		"19xxxxxxxx",                 // 商户号，是由微信支付系统生成并分配给每个商户的唯一标识符，商户号获取方式参考 https://pay.weixin.qq.com/doc/v3/partner/4013080340
16		"1DDE55AD98Exxxxxxxxxx",      // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/partner/4013058924
17		"/path/to/apiclient_key.pem", // 商户API证书私钥文件路径，本地文件路径
18		"PUB_KEY_ID_xxxxxxxxxxxxx",   // 微信支付公钥ID，如何获取请参考 https://pay.weixin.qq.com/doc/v3/partner/4013038589
19		"/path/to/wxp_pub.pem",       // 微信支付公钥文件路径，本地文件路径
20	)
21	if err != nil {
22		fmt.Println(err)
23		return
24	}
25
26	request := &QueryParkingFeeRequest{
27		OutSerialNumber: wxpay_utility.String("PARK20260423001"),
28		PlateNumber:     wxpay_utility.String("粤B12345"),
29		OutParkingId:    wxpay_utility.String("lot_sz_tencent_001"),
30	}
31
32	response, err := QueryParkingFee(config, request)
33	if err != nil {
34		fmt.Printf("请求失败: %+v\n", err)
35		// TODO: 请求失败，根据状态码执行不同的处理
36		return
37	}
38
39	// TODO: 请求成功，继续业务逻辑
40	fmt.Printf("请求成功: %+v\n", response)
41}
42
43func QueryParkingFee(config *wxpay_utility.MchConfig, request *QueryParkingFeeRequest) (response *QueryParkingFeeResponse, err error) {
44	const (
45		host   = "https://api.mch.weixin.qq.com"
46		method = "POST"
47		path   = "/v3/parking/reminders/parking-fee"
48	)
49
50	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
51	if err != nil {
52		return nil, err
53	}
54	reqBody, err := json.Marshal(request)
55	if err != nil {
56		return nil, err
57	}
58	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
59	if err != nil {
60		return nil, err
61	}
62	httpRequest.Header.Set("Accept", "application/json")
63	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
64	httpRequest.Header.Set("Content-Type", "application/json")
65	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
66	if err != nil {
67		return nil, err
68	}
69	httpRequest.Header.Set("Authorization", authorization)
70
71	client := &http.Client{}
72	httpResponse, err := client.Do(httpRequest)
73	if err != nil {
74		return nil, err
75	}
76	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
77	if err != nil {
78		return nil, err
79	}
80	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
81		// 2XX 成功，验证应答签名
82		err = wxpay_utility.ValidateResponse(
83			config.WechatPayPublicKeyId(),
84			config.WechatPayPublicKey(),
85			&httpResponse.Header,
86			respBody,
87		)
88		if err != nil {
89			return nil, err
90		}
91		response := &QueryParkingFeeResponse{}
92		if err := json.Unmarshal(respBody, response); err != nil {
93			return nil, err
94		}
95
96		return response, nil
97	} else {
98		return nil, wxpay_utility.NewApiException(
99			httpResponse.StatusCode,
100			httpResponse.Header,
101			respBody,
102		)
103	}
104}
105
106type QueryParkingFeeRequest struct {
107	OutSerialNumber *string `json:"out_serial_number,omitempty"`
108	PlateNumber     *string `json:"plate_number,omitempty"`
109	OutParkingId    *string `json:"out_parking_id,omitempty"`
110}
111
112type QueryParkingFeeResponse struct {
113	Code                 *string       `json:"code,omitempty"`
114	Message              *string       `json:"message,omitempty"`
115	TotalAmount          *int64        `json:"total_amount,omitempty"`
116	ParkingTimestamp     *int64        `json:"parking_timestamp,omitempty"`
117	ParkingState         *ParkingState `json:"parking_state,omitempty"`
118	PayState             *PayStatus    `json:"pay_state,omitempty"`
119	AllowedExitTimestamp *int64        `json:"allowed_exit_timestamp,omitempty"`
120	NextRaisePrice       *int64        `json:"next_raise_price,omitempty"`
121	NextRaiseTimestamp   *int64        `json:"next_raise_timestamp,omitempty"`
122	PayableAmount        *int64        `json:"payable_amount,omitempty"`
123	PaidAmount           *int64        `json:"paid_amount,omitempty"`
124}
125
126type ParkingState string
127
128func (e ParkingState) Ptr() *ParkingState {
129	return &e
130}
131
132const (
133	PARKINGSTATE_PARKING_STATE_UNKNOWN          ParkingState = "PARKING_STATE_UNKNOWN"
134	PARKINGSTATE_PARKING_STATE_ENTERED          ParkingState = "PARKING_STATE_ENTERED"
135	PARKINGSTATE_PARKING_STATE_EXIT_GATE        ParkingState = "PARKING_STATE_EXIT_GATE"
136	PARKINGSTATE_PARKING_STATE_EXITED           ParkingState = "PARKING_STATE_EXITED"
137	PARKINGSTATE_PARKING_STATE_UNEXPECTED_CLOSE ParkingState = "PARKING_STATE_UNEXPECTED_CLOSE"
138)
139
140type PayStatus string
141
142func (e PayStatus) Ptr() *PayStatus {
143	return &e
144}
145
146const (
147	PAYSTATUS_PAY_STATUS_UNKNOWN PayStatus = "PAY_STATUS_UNKNOWN"
148	PAYSTATUS_PAY_STATUS_UNPAID  PayStatus = "PAY_STATUS_UNPAID"
149	PAYSTATUS_PAY_STATUS_PAID    PayStatus = "PAY_STATUS_PAID"
150)
151