支付方式前置曝光

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/pay/partner/transactions/exposure \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: application/json" \
6  -d '{
7    "sp_mchid" : "example_sp_mchid",
8    "sp_appid" : "wxd678efh567hg6787",
9    "sub_mchid" : "example_sub_mchid",
10    "sub_appid" : "wxd678efh567hg6787",
11    "payer" : {
12      "sp_openid" : "oLTPCuEfSOSZA6X5uR_JxNKjrGLg",
13      "phone_number_hash" : "ABDEF3445546456B",
14      "sub_openid" : "oLTPCuEfSOSZA6X5uR_JxNKjrGLg"
15    },
16    "out_trade_no" : "example_out_trade_no"
17  }'
18

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 * 支付方式前置曝光
24 */
25public class PartnerGetExposureRecommendation {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/v3/pay/partner/transactions/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/partner/4013080340
32    PartnerGetExposureRecommendation client = new PartnerGetExposureRecommendation(
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    PartnerAPIv3PartnerGetExposureRecommendationRequest request = new PartnerAPIv3PartnerGetExposureRecommendationRequest();
41    request.spMchid = "example_sp_mchid";
42    request.spAppid = "wxd678efh567hg6787";
43    request.subMchid = "example_sub_mchid";
44    request.subAppid = "wxd678efh567hg6787";
45    request.payer = new PartnerExposurePayer();
46    request.payer.spOpenid = "oLTPCuEfSOSZA6X5uR_JxNKjrGLg";
47    request.payer.phoneNumberHash = "ABDEF3445546456B";
48    request.payer.subOpenid = "oLTPCuEfSOSZA6X5uR_JxNKjrGLg";
49    request.outTradeNo = "example_out_trade_no";
50    try {
51      PartnerAPIv3PartnerGetExposureRecommendationResponse response = client.run(request);
52        // TODO: 请求成功，继续业务逻辑
53        System.out.println(response);
54    } catch (WXPayUtility.ApiException e) {
55        // TODO: 请求失败，根据状态码执行不同的逻辑
56        e.printStackTrace();
57    }
58  }
59
60  public PartnerAPIv3PartnerGetExposureRecommendationResponse run(PartnerAPIv3PartnerGetExposureRecommendationRequest request) {
61    String uri = PATH;
62    String reqBody = WXPayUtility.toJson(request);
63
64    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
65    reqBuilder.addHeader("Accept", "application/json");
66    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
67    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
68    reqBuilder.addHeader("Content-Type", "application/json");
69    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
70    reqBuilder.method(METHOD, requestBody);
71    Request httpRequest = reqBuilder.build();
72
73    // 发送HTTP请求
74    OkHttpClient client = new OkHttpClient.Builder().build();
75    try (Response httpResponse = client.newCall(httpRequest).execute()) {
76      String respBody = WXPayUtility.extractBody(httpResponse);
77      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
78        // 2XX 成功，验证应答签名
79        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
80            httpResponse.headers(), respBody);
81
82        // 从HTTP应答报文构建返回数据
83        return WXPayUtility.fromJson(respBody, PartnerAPIv3PartnerGetExposureRecommendationResponse.class);
84      } else {
85        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
86      }
87    } catch (IOException e) {
88      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
89    }
90  }
91
92  private final String mchid;
93  private final String certificateSerialNo;
94  private final PrivateKey privateKey;
95  private final String wechatPayPublicKeyId;
96  private final PublicKey wechatPayPublicKey;
97
98  public PartnerGetExposureRecommendation(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
99    this.mchid = mchid;
100    this.certificateSerialNo = certificateSerialNo;
101    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
102    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
103    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
104  }
105
106  public static class PartnerAPIv3PartnerGetExposureRecommendationRequest {
107    @SerializedName("sp_mchid")
108    public String spMchid;
109  
110    @SerializedName("sp_appid")
111    public String spAppid;
112  
113    @SerializedName("sub_mchid")
114    public String subMchid;
115  
116    @SerializedName("sub_appid")
117    public String subAppid;
118  
119    @SerializedName("payer")
120    public PartnerExposurePayer payer;
121  
122    @SerializedName("out_trade_no")
123    public String outTradeNo;
124  }
125  
126  public static class PartnerAPIv3PartnerGetExposureRecommendationResponse {
127    @SerializedName("fqf_exposure")
128    public Boolean fqfExposure;
129  
130    @SerializedName("market_exposure_token")
131    public String marketExposureToken;
132  }
133  
134  public static class PartnerExposurePayer {
135    @SerializedName("sp_openid")
136    public String spOpenid;
137  
138    @SerializedName("phone_number_hash")
139    public String phoneNumberHash;
140  
141    @SerializedName("sub_openid")
142    public String subOpenid;
143  }
144  
145}
146

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 := &PartnerApiv3PartnerGetExposureRecommendationRequest{
27		SpMchid:  wxpay_utility.String("example_sp_mchid"),
28		SpAppid:  wxpay_utility.String("wxd678efh567hg6787"),
29		SubMchid: wxpay_utility.String("example_sub_mchid"),
30		SubAppid: wxpay_utility.String("wxd678efh567hg6787"),
31		Payer: &PartnerExposurePayer{
32			SpOpenid:        wxpay_utility.String("oLTPCuEfSOSZA6X5uR_JxNKjrGLg"),
33			PhoneNumberHash: wxpay_utility.String("ABDEF3445546456B"),
34			SubOpenid:       wxpay_utility.String("oLTPCuEfSOSZA6X5uR_JxNKjrGLg"),
35		},
36		OutTradeNo: wxpay_utility.String("example_out_trade_no"),
37	}
38
39	response, err := PartnerGetExposureRecommendation(config, request)
40	if err != nil {
41		fmt.Printf("请求失败: %+v\n", err)
42		// TODO: 请求失败，根据状态码执行不同的处理
43		return
44	}
45
46	// TODO: 请求成功，继续业务逻辑
47	fmt.Printf("请求成功: %+v\n", response)
48}
49
50func PartnerGetExposureRecommendation(config *wxpay_utility.MchConfig, request *PartnerApiv3PartnerGetExposureRecommendationRequest) (response *PartnerApiv3PartnerGetExposureRecommendationResponse, err error) {
51	const (
52		host   = "https://api.mch.weixin.qq.com"
53		method = "POST"
54		path   = "/v3/pay/partner/transactions/exposure"
55	)
56
57	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
58	if err != nil {
59		return nil, err
60	}
61	reqBody, err := json.Marshal(request)
62	if err != nil {
63		return nil, err
64	}
65	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
66	if err != nil {
67		return nil, err
68	}
69	httpRequest.Header.Set("Accept", "application/json")
70	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
71	httpRequest.Header.Set("Content-Type", "application/json")
72	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
73	if err != nil {
74		return nil, err
75	}
76	httpRequest.Header.Set("Authorization", authorization)
77
78	client := &http.Client{}
79	httpResponse, err := client.Do(httpRequest)
80	if err != nil {
81		return nil, err
82	}
83	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
84	if err != nil {
85		return nil, err
86	}
87	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
88		// 2XX 成功，验证应答签名
89		err = wxpay_utility.ValidateResponse(
90			config.WechatPayPublicKeyId(),
91			config.WechatPayPublicKey(),
92			&httpResponse.Header,
93			respBody,
94		)
95		if err != nil {
96			return nil, err
97		}
98		response := &PartnerApiv3PartnerGetExposureRecommendationResponse{}
99		if err := json.Unmarshal(respBody, response); err != nil {
100			return nil, err
101		}
102
103		return response, nil
104	} else {
105		return nil, wxpay_utility.NewApiException(
106			httpResponse.StatusCode,
107			httpResponse.Header,
108			respBody,
109		)
110	}
111}
112
113type PartnerApiv3PartnerGetExposureRecommendationRequest struct {
114	SpMchid    *string               `json:"sp_mchid,omitempty"`
115	SpAppid    *string               `json:"sp_appid,omitempty"`
116	SubMchid   *string               `json:"sub_mchid,omitempty"`
117	SubAppid   *string               `json:"sub_appid,omitempty"`
118	Payer      *PartnerExposurePayer `json:"payer,omitempty"`
119	OutTradeNo *string               `json:"out_trade_no,omitempty"`
120}
121
122type PartnerApiv3PartnerGetExposureRecommendationResponse struct {
123	FqfExposure         *bool   `json:"fqf_exposure,omitempty"`
124	MarketExposureToken *string `json:"market_exposure_token,omitempty"`
125}
126
127type PartnerExposurePayer struct {
128	SpOpenid        *string `json:"sp_openid,omitempty"`
129	PhoneNumberHash *string `json:"phone_number_hash,omitempty"`
130	SubOpenid       *string `json:"sub_openid,omitempty"`
131}
132