查询车牌服务开通信息

1curl -X GET \
2  https://api.mch.weixin.qq.com/v3/vehicle/parking/services/find?appid=wxcbda96de0b165486&plate_number=粤B888888&plate_color=BLUE&openid=oUpF8uMuAJOM2pxb1Q \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" 
5

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/merchant/4014931831
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 * 查询车牌服务开通信息
24 */
25public class QueryPlateService {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "GET";
28  private static String PATH = "/v3/vehicle/parking/services/find";
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/merchant/4013070756
32    QueryPlateService client = new QueryPlateService(
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/merchant/4013070756
34      "1DDE55AD98Exxxxxxxxxx",         // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/merchant/4013053053
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/merchant/4013038816
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    QueryPlateServiceRequest request = new QueryPlateServiceRequest();
41    request.appid = "wxcbda96de0b165486";
42    request.plateNumber = "粤B888888";
43    request.plateColor = PlateColor.BLUE;
44    request.openid = "oUpF8uMuAJOM2pxb1Q";
45    try {
46      PlateService response = client.run(request);
47        // TODO: 请求成功，继续业务逻辑
48        System.out.println(response);
49    } catch (WXPayUtility.ApiException e) {
50        // TODO: 请求失败，根据状态码执行不同的逻辑
51        e.printStackTrace();
52    }
53  }
54
55  public PlateService run(QueryPlateServiceRequest request) {
56    String uri = PATH;
57    Map<String, Object> args = new HashMap<>();
58    args.put("appid", request.appid);
59    args.put("plate_number", request.plateNumber);
60    args.put("plate_color", request.plateColor);
61    args.put("openid", request.openid);
62    String queryString = WXPayUtility.urlEncode(args);
63    if (!queryString.isEmpty()) {
64        uri = uri + "?" + queryString;
65    }
66
67    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
68    reqBuilder.addHeader("Accept", "application/json");
69    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
70    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo, privateKey, METHOD, uri, null));
71    reqBuilder.method(METHOD, null);
72    Request httpRequest = reqBuilder.build();
73
74    // 发送HTTP请求
75    OkHttpClient client = new OkHttpClient.Builder().build();
76    try (Response httpResponse = client.newCall(httpRequest).execute()) {
77      String respBody = WXPayUtility.extractBody(httpResponse);
78      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
79        // 2XX 成功，验证应答签名
80        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
81            httpResponse.headers(), respBody);
82
83        // 从HTTP应答报文构建返回数据
84        return WXPayUtility.fromJson(respBody, PlateService.class);
85      } else {
86        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
87      }
88    } catch (IOException e) {
89      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
90    }
91  }
92
93  private final String mchid;
94  private final String certificateSerialNo;
95  private final PrivateKey privateKey;
96  private final String wechatPayPublicKeyId;
97  private final PublicKey wechatPayPublicKey;
98
99  public QueryPlateService(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
100    this.mchid = mchid;
101    this.certificateSerialNo = certificateSerialNo;
102    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
103    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
104    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
105  }
106
107  public static class QueryPlateServiceRequest {
108    @SerializedName("appid")
109    @Expose(serialize = false)
110    public String appid;
111  
112    @SerializedName("plate_number")
113    @Expose(serialize = false)
114    public String plateNumber;
115  
116    @SerializedName("openid")
117    @Expose(serialize = false)
118    public String openid;
119  
120    @SerializedName("plate_color")
121    @Expose(serialize = false)
122    public PlateColor plateColor;
123  }
124  
125  public static class PlateService {
126    @SerializedName("plate_number")
127    public String plateNumber;
128  
129    @SerializedName("plate_color")
130    public PlateColor plateColor;
131  
132    @SerializedName("service_open_time")
133    public String serviceOpenTime;
134  
135    @SerializedName("openid")
136    public String openid;
137  
138    @SerializedName("service_state")
139    public String serviceState;
140  }
141  
142  public enum PlateColor {
143    @SerializedName("BLUE")
144    BLUE,
145    @SerializedName("GREEN")
146    GREEN,
147    @SerializedName("YELLOW")
148    YELLOW,
149    @SerializedName("BLACK")
150    BLACK,
151    @SerializedName("WHITE")
152    WHITE,
153    @SerializedName("LIMEGREEN")
154    LIMEGREEN
155  }
156  
157}
158

1package main
2
3import (
4	"demo/wxpay_utility" // 引用微信支付工具库，参考 https://pay.weixin.qq.com/doc/v3/merchant/4015119334
5	"encoding/json"
6	"fmt"
7	"net/http"
8	"net/url"
9	"time"
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/merchant/4013070756
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/merchant/4013070756
16		"1DDE55AD98Exxxxxxxxxx",      // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/merchant/4013053053
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/merchant/4013038816
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 := &QueryPlateServiceRequest{
27		Appid:       wxpay_utility.String("wxcbda96de0b165486"),
28		PlateNumber: wxpay_utility.String("粤B888888"),
29		PlateColor:  PLATECOLOR_BLUE.Ptr(),
30		Openid:      wxpay_utility.String("oUpF8uMuAJOM2pxb1Q"),
31	}
32
33	response, err := QueryPlateService(config, request)
34	if err != nil {
35		fmt.Printf("请求失败: %+v\n", err)
36		// TODO: 请求失败，根据状态码执行不同的处理
37		return
38	}
39
40	// TODO: 请求成功，继续业务逻辑
41	fmt.Printf("请求成功: %+v\n", response)
42}
43
44func QueryPlateService(config *wxpay_utility.MchConfig, request *QueryPlateServiceRequest) (response *PlateService, err error) {
45	const (
46		host   = "https://api.mch.weixin.qq.com"
47		method = "GET"
48		path   = "/v3/vehicle/parking/services/find"
49	)
50
51	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
52	if err != nil {
53		return nil, err
54	}
55	query := reqUrl.Query()
56	if request.Appid != nil {
57		query.Add("appid", *request.Appid)
58	}
59	if request.PlateNumber != nil {
60		query.Add("plate_number", *request.PlateNumber)
61	}
62	if request.PlateColor != nil {
63		query.Add("plate_color", fmt.Sprintf("%v", *request.PlateColor))
64	}
65	if request.Openid != nil {
66		query.Add("openid", *request.Openid)
67	}
68	reqUrl.RawQuery = query.Encode()
69	httpRequest, err := http.NewRequest(method, reqUrl.String(), nil)
70	if err != nil {
71		return nil, err
72	}
73	httpRequest.Header.Set("Accept", "application/json")
74	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
75	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), nil)
76	if err != nil {
77		return nil, err
78	}
79	httpRequest.Header.Set("Authorization", authorization)
80
81	client := &http.Client{}
82	httpResponse, err := client.Do(httpRequest)
83	if err != nil {
84		return nil, err
85	}
86	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
87	if err != nil {
88		return nil, err
89	}
90	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
91		// 2XX 成功，验证应答签名
92		err = wxpay_utility.ValidateResponse(
93			config.WechatPayPublicKeyId(),
94			config.WechatPayPublicKey(),
95			&httpResponse.Header,
96			respBody,
97		)
98		if err != nil {
99			return nil, err
100		}
101		response := &PlateService{}
102		if err := json.Unmarshal(respBody, response); err != nil {
103			return nil, err
104		}
105
106		return response, nil
107	} else {
108		return nil, wxpay_utility.NewApiException(
109			httpResponse.StatusCode,
110			httpResponse.Header,
111			respBody,
112		)
113	}
114}
115
116type QueryPlateServiceRequest struct {
117	Appid       *string     `json:"appid,omitempty"`
118	PlateNumber *string     `json:"plate_number,omitempty"`
119	Openid      *string     `json:"openid,omitempty"`
120	PlateColor  *PlateColor `json:"plate_color,omitempty"`
121}
122
123func (o *QueryPlateServiceRequest) MarshalJSON() ([]byte, error) {
124	type Alias QueryPlateServiceRequest
125	a := &struct {
126		Appid       *string     `json:"appid,omitempty"`
127		PlateNumber *string     `json:"plate_number,omitempty"`
128		Openid      *string     `json:"openid,omitempty"`
129		PlateColor  *PlateColor `json:"plate_color,omitempty"`
130		*Alias
131	}{
132		// 序列化时移除非 Body 字段
133		Appid:       nil,
134		PlateNumber: nil,
135		Openid:      nil,
136		PlateColor:  nil,
137		Alias:       (*Alias)(o),
138	}
139	return json.Marshal(a)
140}
141
142type PlateService struct {
143	PlateNumber     *string     `json:"plate_number,omitempty"`
144	PlateColor      *PlateColor `json:"plate_color,omitempty"`
145	ServiceOpenTime *time.Time  `json:"service_open_time,omitempty"`
146	Openid          *string     `json:"openid,omitempty"`
147	ServiceState    *string     `json:"service_state,omitempty"`
148}
149
150type PlateColor string
151
152func (e PlateColor) Ptr() *PlateColor {
153	return &e
154}
155
156const (
157	PLATECOLOR_BLUE      PlateColor = "BLUE"
158	PLATECOLOR_GREEN     PlateColor = "GREEN"
159	PLATECOLOR_YELLOW    PlateColor = "YELLOW"
160	PLATECOLOR_BLACK     PlateColor = "BLACK"
161	PLATECOLOR_WHITE     PlateColor = "WHITE"
162	PLATECOLOR_LIMEGREEN PlateColor = "LIMEGREEN"
163)
164