企业商户发起员工开通企业支付授权

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 * 企业商户发起员工开通企业支付授权
24 */
25public class ApplyAuthorization {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/v3/webizpay/users/{user_id}/authorization-url";
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    ApplyAuthorization client = new ApplyAuthorization(
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    ApplyAuthorizationRequest request = new ApplyAuthorizationRequest();
41    request.userId = "employee123";
42    request.spMchid = "12341234";
43    request.subMchid = "43214321";
44    request.applicationType = ApplicationType.H5;
45    try {
46      UsersApplyAuthorizationResponse response = client.run(request);
47
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 UsersApplyAuthorizationResponse run(ApplyAuthorizationRequest request) {
57    String uri = PATH;
58    uri = uri.replace("{user_id}", WXPayUtility.urlEncode(request.userId));
59    String reqBody = WXPayUtility.toJson(request);
60
61    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
62    reqBuilder.addHeader("Accept", "application/json");
63    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
64    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
65    reqBuilder.addHeader("Content-Type", "application/json");
66    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
67    reqBuilder.method(METHOD, requestBody);
68    Request httpRequest = reqBuilder.build();
69
70    // 发送HTTP请求
71    OkHttpClient client = new OkHttpClient.Builder().build();
72    try (Response httpResponse = client.newCall(httpRequest).execute()) {
73      String respBody = WXPayUtility.extractBody(httpResponse);
74      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
75        // 2XX 成功，验证应答签名
76        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
77            httpResponse.headers(), respBody);
78
79        // 从HTTP应答报文构建返回数据
80        return WXPayUtility.fromJson(respBody, UsersApplyAuthorizationResponse.class);
81      } else {
82        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
83      }
84    } catch (IOException e) {
85      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
86    }
87  }
88
89  private final String mchid;
90  private final String certificateSerialNo;
91  private final PrivateKey privateKey;
92  private final String wechatPayPublicKeyId;
93  private final PublicKey wechatPayPublicKey;
94
95  public ApplyAuthorization(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
96    this.mchid = mchid;
97    this.certificateSerialNo = certificateSerialNo;
98    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
99    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
100    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
101  }
102
103  public static class ApplyAuthorizationRequest {
104    @SerializedName("sp_mchid")
105    public String spMchid;
106  
107    @SerializedName("sub_mchid")
108    public String subMchid;
109  
110    @SerializedName("user_id")
111    @Expose(serialize = false)
112    public String userId;
113  
114    @SerializedName("application_type")
115    public ApplicationType applicationType;
116  }
117  
118  public static class UsersApplyAuthorizationResponse {
119    @SerializedName("sp_mchid")
120    public String spMchid;
121  
122    @SerializedName("sub_mchid")
123    public String subMchid;
124  
125    @SerializedName("user_id")
126    public String userId;
127  
128    @SerializedName("authorization_url")
129    public String authorizationUrl;
130  
131    @SerializedName("expire_time")
132    public String expireTime;
133  
134    @SerializedName("application_type")
135    public ApplicationType applicationType;
136  
137    @SerializedName("mp_query")
138    public String mpQuery;
139  
140    @SerializedName("mp_business_type")
141    public String mpBusinessType;
142  }
143  
144  public enum ApplicationType {
145    @SerializedName("H5")
146    H5,
147    @SerializedName("MINIPROGRAM")
148    MINIPROGRAM
149  }
150  
151}
152

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	"strings"
11)
12
13func main() {
14	// TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/partner/4013080340
15	config, err := wxpay_utility.CreateMchConfig(
16		"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
17		"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
18		"/path/to/apiclient_key.pem", // 商户API证书私钥文件路径，本地文件路径
19		"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
20		"/path/to/wxp_pub.pem",       // 微信支付公钥文件路径，本地文件路径
21	)
22	if err != nil {
23		fmt.Println(err)
24		return
25	}
26
27	request := &ApplyAuthorizationRequest{
28		UserId:          wxpay_utility.String("employee123"),
29		SpMchid:         wxpay_utility.String("12341234"),
30		SubMchid:        wxpay_utility.String("43214321"),
31		ApplicationType: APPLICATIONTYPE_H5.Ptr(),
32	}
33
34	response, err := ApplyAuthorization(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 ApplyAuthorization(config *wxpay_utility.MchConfig, request *ApplyAuthorizationRequest) (response *UsersApplyAuthorizationResponse, err error) {
46	const (
47		host   = "https://api.mch.weixin.qq.com"
48		method = "POST"
49		path   = "/v3/webizpay/users/{user_id}/authorization-url"
50	)
51
52	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
53	if err != nil {
54		return nil, err
55	}
56	reqUrl.Path = strings.Replace(reqUrl.Path, "{user_id}", url.PathEscape(*request.UserId), -1)
57	reqBody, err := json.Marshal(request)
58	if err != nil {
59		return nil, err
60	}
61	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
62	if err != nil {
63		return nil, err
64	}
65	httpRequest.Header.Set("Accept", "application/json")
66	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
67	httpRequest.Header.Set("Content-Type", "application/json")
68	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
69	if err != nil {
70		return nil, err
71	}
72	httpRequest.Header.Set("Authorization", authorization)
73
74	client := &http.Client{}
75	httpResponse, err := client.Do(httpRequest)
76	if err != nil {
77		return nil, err
78	}
79
80	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
81	if err != nil {
82		return nil, err
83	}
84
85	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
86		// 2XX 成功，验证应答签名
87		err = wxpay_utility.ValidateResponse(
88			config.WechatPayPublicKeyId(),
89			config.WechatPayPublicKey(),
90			&httpResponse.Header,
91			respBody,
92		)
93		if err != nil {
94			return nil, err
95		}
96
97		if err := json.Unmarshal(respBody, response); err != nil {
98			return nil, err
99		}
100
101		return response, nil
102	} else {
103		return nil, wxpay_utility.NewApiException(
104			httpResponse.StatusCode,
105			httpResponse.Header,
106			respBody,
107		)
108	}
109}
110
111type ApplyAuthorizationRequest struct {
112	SpMchid         *string          `json:"sp_mchid,omitempty"`
113	SubMchid        *string          `json:"sub_mchid,omitempty"`
114	UserId          *string          `json:"user_id,omitempty"`
115	ApplicationType *ApplicationType `json:"application_type,omitempty"`
116}
117
118func (o *ApplyAuthorizationRequest) MarshalJSON() ([]byte, error) {
119	type Alias ApplyAuthorizationRequest
120	a := &struct {
121		UserId *string `json:"user_id,omitempty"`
122		*Alias
123	}{
124		// 序列化时移除非 Body 字段
125		UserId: nil,
126		Alias:  (*Alias)(o),
127	}
128	return json.Marshal(a)
129}
130
131type UsersApplyAuthorizationResponse struct {
132	SpMchid          *string          `json:"sp_mchid,omitempty"`
133	SubMchid         *string          `json:"sub_mchid,omitempty"`
134	UserId           *string          `json:"user_id,omitempty"`
135	AuthorizationUrl *string          `json:"authorization_url,omitempty"`
136	ExpireTime       *string          `json:"expire_time,omitempty"`
137	ApplicationType  *ApplicationType `json:"application_type,omitempty"`
138	MpQuery          *string          `json:"mp_query,omitempty"`
139	MpBusinessType   *string          `json:"mp_business_type,omitempty"`
140}
141
142type ApplicationType string
143
144func (e ApplicationType) Ptr() *ApplicationType {
145	return &e
146}
147
148const (
149	APPLICATIONTYPE_H5          ApplicationType = "H5"
150	APPLICATIONTYPE_MINIPROGRAM ApplicationType = "MINIPROGRAM"
151)
152

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/webizpay/users/employee123/authorization-url \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: application/json" \
6  -d '{
7    "sp_mchid" : "12341234",
8    "sub_mchid" : "43214321",
9    "application_type" : "H5"
10  }'
11