获取微信分付曝光建议

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/pay/instal/exposure \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: application/json" \
6  -d '{
7    "mchid" : "12345",
8    "appid" : "123abc",
9    "user_id_type" : "OPENID",
10    "openid" : "123456789",
11    "phone_number_hash" : "EF879546FFFF"
12  }'
13

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 * 获取微信分付曝光建议
24 */
25public class GetExposureRecommendation {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/v3/pay/instal/exposure";
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    GetExposureRecommendation client = new GetExposureRecommendation(
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    GetExposureRecommendationRequest request = new GetExposureRecommendationRequest();
41    request.mchid = "12345";
42    request.appid = "123abc";
43    request.userIdType = UserIdType.OPENID;
44    request.openid = "123456789";
45    request.phoneNumberHash = "EF879546FFFF";
46    try {
47      ExposureRecommendation response = client.run(request);
48        // TODO: 请求成功，继续业务逻辑
49        System.out.println(response);
50    } catch (WXPayUtility.ApiException e) {
51        // TODO: 请求失败，根据状态码执行不同的逻辑
52        e.printStackTrace();
53    }
54  }
55
56  public ExposureRecommendation run(GetExposureRecommendationRequest request) {
57    String uri = PATH;
58    String reqBody = WXPayUtility.toJson(request);
59
60    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
61    reqBuilder.addHeader("Accept", "application/json");
62    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
63    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
64    reqBuilder.addHeader("Content-Type", "application/json");
65    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
66    reqBuilder.method(METHOD, requestBody);
67    Request httpRequest = reqBuilder.build();
68
69    // 发送HTTP请求
70    OkHttpClient client = new OkHttpClient.Builder().build();
71    try (Response httpResponse = client.newCall(httpRequest).execute()) {
72      String respBody = WXPayUtility.extractBody(httpResponse);
73      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
74        // 2XX 成功，验证应答签名
75        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
76            httpResponse.headers(), respBody);
77
78        // 从HTTP应答报文构建返回数据
79        return WXPayUtility.fromJson(respBody, ExposureRecommendation.class);
80      } else {
81        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
82      }
83    } catch (IOException e) {
84      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
85    }
86  }
87
88  private final String mchid;
89  private final String certificateSerialNo;
90  private final PrivateKey privateKey;
91  private final String wechatPayPublicKeyId;
92  private final PublicKey wechatPayPublicKey;
93
94  public GetExposureRecommendation(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
95    this.mchid = mchid;
96    this.certificateSerialNo = certificateSerialNo;
97    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
98    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
99    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
100  }
101
102  public static class GetExposureRecommendationRequest {
103    @SerializedName("mchid")
104    public String mchid;
105  
106    @SerializedName("appid")
107    public String appid;
108  
109    @SerializedName("user_id_type")
110    public UserIdType userIdType;
111  
112    @SerializedName("openid")
113    public String openid;
114  
115    @SerializedName("phone_number_hash")
116    public String phoneNumberHash;
117  }
118  
119  public static class ExposureRecommendation {
120    @SerializedName("recommend_exposure")
121    public Boolean recommendExposure;
122  }
123  
124  public enum UserIdType {
125    @SerializedName("UNKNOWN_USER_ID_TYPE")
126    UNKNOWN_USER_ID_TYPE,
127    @SerializedName("OPENID")
128    OPENID,
129    @SerializedName("PHONE_NO")
130    PHONE_NO,
131    @SerializedName("SP_OPENID")
132    SP_OPENID,
133    @SerializedName("SUB_OPENID")
134    SUB_OPENID
135  }
136  
137}
138

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/merchant/4015119334
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/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 := &GetExposureRecommendationRequest{
27		Mchid:           wxpay_utility.String("12345"),
28		Appid:           wxpay_utility.String("123abc"),
29		UserIdType:      USERIDTYPE_OPENID.Ptr(),
30		Openid:          wxpay_utility.String("123456789"),
31		PhoneNumberHash: wxpay_utility.String("EF879546FFFF"),
32	}
33
34	response, err := GetExposureRecommendation(config, request)
35	if err != nil {
36		fmt.Printf("请求失败: %+v\n", err)
37		// TODO: 请求失败，根据状态码执行不同的处理
38		return
39	}
40
41	// TODO: 请求成功，继续业务逻辑
42	fmt.Printf("请求成功: %+v\n", response)
43}
44
45func GetExposureRecommendation(config *wxpay_utility.MchConfig, request *GetExposureRecommendationRequest) (response *ExposureRecommendation, err error) {
46	const (
47		host   = "https://api.mch.weixin.qq.com"
48		method = "POST"
49		path   = "/v3/pay/instal/exposure"
50	)
51
52	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
53	if err != nil {
54		return nil, err
55	}
56	reqBody, err := json.Marshal(request)
57	if err != nil {
58		return nil, err
59	}
60	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
61	if err != nil {
62		return nil, err
63	}
64	httpRequest.Header.Set("Accept", "application/json")
65	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
66	httpRequest.Header.Set("Content-Type", "application/json")
67	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
68	if err != nil {
69		return nil, err
70	}
71	httpRequest.Header.Set("Authorization", authorization)
72
73	client := &http.Client{}
74	httpResponse, err := client.Do(httpRequest)
75	if err != nil {
76		return nil, err
77	}
78	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
79	if err != nil {
80		return nil, err
81	}
82	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
83		// 2XX 成功，验证应答签名
84		err = wxpay_utility.ValidateResponse(
85			config.WechatPayPublicKeyId(),
86			config.WechatPayPublicKey(),
87			&httpResponse.Header,
88			respBody,
89		)
90		if err != nil {
91			return nil, err
92		}
93		response := &ExposureRecommendation{}
94		if err := json.Unmarshal(respBody, response); err != nil {
95			return nil, err
96		}
97
98		return response, nil
99	} else {
100		return nil, wxpay_utility.NewApiException(
101			httpResponse.StatusCode,
102			httpResponse.Header,
103			respBody,
104		)
105	}
106}
107
108type GetExposureRecommendationRequest struct {
109	Mchid           *string     `json:"mchid,omitempty"`
110	Appid           *string     `json:"appid,omitempty"`
111	UserIdType      *UserIdType `json:"user_id_type,omitempty"`
112	Openid          *string     `json:"openid,omitempty"`
113	PhoneNumberHash *string     `json:"phone_number_hash,omitempty"`
114}
115
116type ExposureRecommendation struct {
117	RecommendExposure *bool `json:"recommend_exposure,omitempty"`
118}
119
120type UserIdType string
121
122func (e UserIdType) Ptr() *UserIdType {
123	return &e
124}
125
126const (
127	USERIDTYPE_UNKNOWN_USER_ID_TYPE UserIdType = "UNKNOWN_USER_ID_TYPE"
128	USERIDTYPE_OPENID               UserIdType = "OPENID"
129	USERIDTYPE_PHONE_NO             UserIdType = "PHONE_NO"
130	USERIDTYPE_SP_OPENID            UserIdType = "SP_OPENID"
131	USERIDTYPE_SUB_OPENID           UserIdType = "SUB_OPENID"
132)
133