发起转账并完成免确认收款授权

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/fund-app/mch-transfer/partner/transfer-bills/pre-transfer-with-authorization \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Wechatpay-Serial: 5157F09EFDC096DE15EBE81A47057A7232F1B8E1"  \
6  -H "Content-Type: application/json" \
7  -d '{
8    "sub_mchid" : "1900001121",
9    "appid" : "wxf636efh567hg4356",
10    "out_bill_no" : "plfk2020042013",
11    "transfer_scene_id" : "1000",
12    "openid" : "o-MYE42l80oelYMDE34nYD456Xoy",
13    "user_name" : "757b340b45ebef5467rter35gf464344v3542sdf4t6re4tb4f54ty45t4yyry45",
14    "transfer_amount" : 400000,
15    "transfer_remark" : "2020年4月报销",
16    "notify_url" : "https://www.weixin.qq.com/wxpay/pay.php",
17    "user_recv_perception" : "现金奖励",
18    "transfer_scene_report_infos" : [
19      {
20        "info_type" : "活动名称",
21        "info_content" : "新会员有礼"
22      }
23    ],
24    "authorization_info" : {
25      "user_display_name" : "wx_123456",
26      "out_authorization_no" : "plfk2020042013",
27      "authorization_notify_url" : "https://www.weixin.qq.com/wxpay/pay.php"
28    }
29  }'
30

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 * 发起转账并完成免确认收款授权
24 */
25public class PreTransferWithAuthorization {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/v3/fund-app/mch-transfer/partner/transfer-bills/pre-transfer-with-authorization";
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    PreTransferWithAuthorization client = new PreTransferWithAuthorization(
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    TransferToUserRequest request = new TransferToUserRequest();
41    request.subMchid = "1900001121";
42    request.appid = "wxf636efh567hg4356";
43    request.outBillNo = "plfk2020042013";
44    request.transferSceneId = "1000";
45    request.openid = "o-MYE42l80oelYMDE34nYD456Xoy";
46    request.userName = client.encrypt("user_name");
47    request.transferAmount = 400000L;
48    request.transferRemark = "2020年4月报销";
49    request.notifyUrl = "https://www.weixin.qq.com/wxpay/pay.php";
50    request.userRecvPerception = "现金奖励";
51    request.transferSceneReportInfos = new ArrayList<>();
52    {
53      TransferSceneReportInfo transferSceneReportInfosItem = new TransferSceneReportInfo();
54      transferSceneReportInfosItem.infoType = "活动名称";
55      transferSceneReportInfosItem.infoContent = "新会员有礼";
56      request.transferSceneReportInfos.add(transferSceneReportInfosItem);
57    };
58    request.authorizationInfo = new UserConfirmAuthorizationInfo();
59    request.authorizationInfo.userDisplayName = "wx_123456";
60    request.authorizationInfo.outAuthorizationNo = "plfk2020042013";
61    request.authorizationInfo.authorizationNotifyUrl = "https://www.weixin.qq.com/wxpay/pay.php";
62    try {
63      TransferToUserResponse response = client.run(request);
64        // TODO: 请求成功，继续业务逻辑
65        System.out.println(response);
66    } catch (WXPayUtility.ApiException e) {
67        // TODO: 请求失败，根据状态码执行不同的逻辑
68        e.printStackTrace();
69    }
70  }
71
72  public TransferToUserResponse run(TransferToUserRequest request) {
73    String uri = PATH;
74    String reqBody = WXPayUtility.toJson(request);
75
76    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
77    reqBuilder.addHeader("Accept", "application/json");
78    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
79    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
80    reqBuilder.addHeader("Content-Type", "application/json");
81    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
82    reqBuilder.method(METHOD, requestBody);
83    Request httpRequest = reqBuilder.build();
84
85    // 发送HTTP请求
86    OkHttpClient client = new OkHttpClient.Builder().build();
87    try (Response httpResponse = client.newCall(httpRequest).execute()) {
88      String respBody = WXPayUtility.extractBody(httpResponse);
89      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
90        // 2XX 成功，验证应答签名
91        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
92            httpResponse.headers(), respBody);
93
94        // 从HTTP应答报文构建返回数据
95        return WXPayUtility.fromJson(respBody, TransferToUserResponse.class);
96      } else {
97        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
98      }
99    } catch (IOException e) {
100      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
101    }
102  }
103
104  private final String mchid;
105  private final String certificateSerialNo;
106  private final PrivateKey privateKey;
107  private final String wechatPayPublicKeyId;
108  private final PublicKey wechatPayPublicKey;
109
110  public PreTransferWithAuthorization(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
111    this.mchid = mchid;
112    this.certificateSerialNo = certificateSerialNo;
113    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
114    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
115    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
116  }
117
118  public String encrypt(String plainText) {
119    return WXPayUtility.encrypt(this.wechatPayPublicKey, plainText);
120  }
121
122  public static class TransferToUserRequest {
123    @SerializedName("sub_mchid")
124    public String subMchid;
125  
126    @SerializedName("appid")
127    public String appid;
128  
129    @SerializedName("out_bill_no")
130    public String outBillNo;
131  
132    @SerializedName("transfer_scene_id")
133    public String transferSceneId;
134  
135    @SerializedName("openid")
136    public String openid;
137  
138    @SerializedName("user_name")
139    public String userName;
140  
141    @SerializedName("transfer_amount")
142    public Long transferAmount;
143  
144    @SerializedName("transfer_remark")
145    public String transferRemark;
146  
147    @SerializedName("notify_url")
148    public String notifyUrl;
149  
150    @SerializedName("user_recv_perception")
151    public String userRecvPerception;
152  
153    @SerializedName("transfer_scene_report_infos")
154    public List<TransferSceneReportInfo> transferSceneReportInfos;
155  
156    @SerializedName("authorization_info")
157    public UserConfirmAuthorizationInfo authorizationInfo;
158  }
159  
160  public static class TransferToUserResponse {
161    @SerializedName("sub_mchid")
162    public String subMchid;
163  
164    @SerializedName("out_bill_no")
165    public String outBillNo;
166  
167    @SerializedName("transfer_bill_no")
168    public String transferBillNo;
169  
170    @SerializedName("create_time")
171    public String createTime;
172  
173    @SerializedName("package_info")
174    public String packageInfo;
175  }
176  
177  public static class TransferSceneReportInfo {
178    @SerializedName("info_type")
179    public String infoType;
180  
181    @SerializedName("info_content")
182    public String infoContent;
183  }
184  
185  public static class UserConfirmAuthorizationInfo {
186    @SerializedName("user_display_name")
187    public String userDisplayName;
188  
189    @SerializedName("out_authorization_no")
190    public String outAuthorizationNo;
191  
192    @SerializedName("authorization_notify_url")
193    public String authorizationNotifyUrl;
194  }
195  
196}
197

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 := &TransferToUserRequest{
27		SubMchid:           wxpay_utility.String("1900001121"),
28		Appid:              wxpay_utility.String("wxf636efh567hg4356"),
29		OutBillNo:          wxpay_utility.String("plfk2020042013"),
30		TransferSceneId:    wxpay_utility.String("1000"),
31		Openid:             wxpay_utility.String("o-MYE42l80oelYMDE34nYD456Xoy"),
32		UserName:           wxpay_utility.String("757b340b45ebef5467rter35gf464344v3542sdf4t6re4tb4f54ty45t4yyry45"), /*请传入wxpay_utility.EncryptOAEPWithPublicKey 加密结果*/
33		TransferAmount:     wxpay_utility.Int64(400000),
34		TransferRemark:     wxpay_utility.String("2020年4月报销"),
35		NotifyUrl:          wxpay_utility.String("https://www.weixin.qq.com/wxpay/pay.php"),
36		UserRecvPerception: wxpay_utility.String("现金奖励"),
37		TransferSceneReportInfos: []TransferSceneReportInfo{TransferSceneReportInfo{
38			InfoType:    wxpay_utility.String("活动名称"),
39			InfoContent: wxpay_utility.String("新会员有礼"),
40		}},
41		AuthorizationInfo: &UserConfirmAuthorizationInfo{
42			UserDisplayName:        wxpay_utility.String("wx_123456"),
43			OutAuthorizationNo:     wxpay_utility.String("plfk2020042013"),
44			AuthorizationNotifyUrl: wxpay_utility.String("https://www.weixin.qq.com/wxpay/pay.php"),
45		},
46	}
47
48	response, err := PreTransferWithAuthorization(config, request)
49	if err != nil {
50		fmt.Printf("请求失败: %+v\n", err)
51		// TODO: 请求失败，根据状态码执行不同的处理
52		return
53	}
54
55	// TODO: 请求成功，继续业务逻辑
56	fmt.Printf("请求成功: %+v\n", response)
57}
58
59func PreTransferWithAuthorization(config *wxpay_utility.MchConfig, request *TransferToUserRequest) (response *TransferToUserResponse, err error) {
60	const (
61		host   = "https://api.mch.weixin.qq.com"
62		method = "POST"
63		path   = "/v3/fund-app/mch-transfer/partner/transfer-bills/pre-transfer-with-authorization"
64	)
65
66	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
67	if err != nil {
68		return nil, err
69	}
70	reqBody, err := json.Marshal(request)
71	if err != nil {
72		return nil, err
73	}
74	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
75	if err != nil {
76		return nil, err
77	}
78	httpRequest.Header.Set("Accept", "application/json")
79	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
80	httpRequest.Header.Set("Content-Type", "application/json")
81	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
82	if err != nil {
83		return nil, err
84	}
85	httpRequest.Header.Set("Authorization", authorization)
86
87	client := &http.Client{}
88	httpResponse, err := client.Do(httpRequest)
89	if err != nil {
90		return nil, err
91	}
92	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
93	if err != nil {
94		return nil, err
95	}
96	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
97		// 2XX 成功，验证应答签名
98		err = wxpay_utility.ValidateResponse(
99			config.WechatPayPublicKeyId(),
100			config.WechatPayPublicKey(),
101			&httpResponse.Header,
102			respBody,
103		)
104		if err != nil {
105			return nil, err
106		}
107		response := &TransferToUserResponse{}
108		if err := json.Unmarshal(respBody, response); err != nil {
109			return nil, err
110		}
111
112		return response, nil
113	} else {
114		return nil, wxpay_utility.NewApiException(
115			httpResponse.StatusCode,
116			httpResponse.Header,
117			respBody,
118		)
119	}
120}
121
122type TransferToUserRequest struct {
123	SubMchid                 *string                       `json:"sub_mchid,omitempty"`
124	Appid                    *string                       `json:"appid,omitempty"`
125	OutBillNo                *string                       `json:"out_bill_no,omitempty"`
126	TransferSceneId          *string                       `json:"transfer_scene_id,omitempty"`
127	Openid                   *string                       `json:"openid,omitempty"`
128	UserName                 *string                       `json:"user_name,omitempty"`
129	TransferAmount           *int64                        `json:"transfer_amount,omitempty"`
130	TransferRemark           *string                       `json:"transfer_remark,omitempty"`
131	NotifyUrl                *string                       `json:"notify_url,omitempty"`
132	UserRecvPerception       *string                       `json:"user_recv_perception,omitempty"`
133	TransferSceneReportInfos []TransferSceneReportInfo     `json:"transfer_scene_report_infos,omitempty"`
134	AuthorizationInfo        *UserConfirmAuthorizationInfo `json:"authorization_info,omitempty"`
135}
136
137type TransferToUserResponse struct {
138	SubMchid       *string `json:"sub_mchid,omitempty"`
139	OutBillNo      *string `json:"out_bill_no,omitempty"`
140	TransferBillNo *string `json:"transfer_bill_no,omitempty"`
141	CreateTime     *string `json:"create_time,omitempty"`
142	PackageInfo    *string `json:"package_info,omitempty"`
143}
144
145type TransferSceneReportInfo struct {
146	InfoType    *string `json:"info_type,omitempty"`
147	InfoContent *string `json:"info_content,omitempty"`
148}
149
150type UserConfirmAuthorizationInfo struct {
151	UserDisplayName        *string `json:"user_display_name,omitempty"`
152	OutAuthorizationNo     *string `json:"out_authorization_no,omitempty"`
153	AuthorizationNotifyUrl *string `json:"authorization_notify_url,omitempty"`
154}
155