转账（用户免确认收款）

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/fund-app/mch-transfer/partner/transfer-bills/transfer \
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    "user_name" : "757b340b45ebef5467rter35gf464344v3542sdf4t6re4tb4f54ty45t4yyry45",
13    "transfer_amount" : 400000,
14    "transfer_remark" : "2020年4月报销",
15    "notify_url" : "https://www.weixin.qq.com/wxpay/pay.php",
16    "user_recv_perception" : "现金奖励",
17    "transfer_scene_report_infos" : [
18      {
19        "info_type" : "活动名称",
20        "info_content" : "新会员有礼"
21      }
22    ],
23    "authorization_id" : "201202504101000123456789012"
24  }'
25

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 * 转账（用户免确认收款）
24 */
25public class Transfer {
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/transfer";
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    Transfer client = new Transfer(
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.userName = client.encrypt("user_name");
46    request.transferAmount = 400000L;
47    request.transferRemark = "2020年4月报销";
48    request.notifyUrl = "https://www.weixin.qq.com/wxpay/pay.php";
49    request.userRecvPerception = "现金奖励";
50    request.transferSceneReportInfos = new ArrayList<>();
51    {
52      TransferSceneReportInfo transferSceneReportInfosItem = new TransferSceneReportInfo();
53      transferSceneReportInfosItem.infoType = "活动名称";
54      transferSceneReportInfosItem.infoContent = "新会员有礼";
55      request.transferSceneReportInfos.add(transferSceneReportInfosItem);
56    };
57    request.authorizationId = "201202504101000123456789012";
58    try {
59      TransferBillEntity response = client.run(request);
60        // TODO: 请求成功，继续业务逻辑
61        System.out.println(response);
62    } catch (WXPayUtility.ApiException e) {
63        // TODO: 请求失败，根据状态码执行不同的逻辑
64        e.printStackTrace();
65    }
66  }
67
68  public TransferBillEntity run(TransferToUserRequest request) {
69    String uri = PATH;
70    String reqBody = WXPayUtility.toJson(request);
71
72    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
73    reqBuilder.addHeader("Accept", "application/json");
74    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
75    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
76    reqBuilder.addHeader("Content-Type", "application/json");
77    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
78    reqBuilder.method(METHOD, requestBody);
79    Request httpRequest = reqBuilder.build();
80
81    // 发送HTTP请求
82    OkHttpClient client = new OkHttpClient.Builder().build();
83    try (Response httpResponse = client.newCall(httpRequest).execute()) {
84      String respBody = WXPayUtility.extractBody(httpResponse);
85      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
86        // 2XX 成功，验证应答签名
87        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
88            httpResponse.headers(), respBody);
89
90        // 从HTTP应答报文构建返回数据
91        return WXPayUtility.fromJson(respBody, TransferBillEntity.class);
92      } else {
93        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
94      }
95    } catch (IOException e) {
96      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
97    }
98  }
99
100  private final String mchid;
101  private final String certificateSerialNo;
102  private final PrivateKey privateKey;
103  private final String wechatPayPublicKeyId;
104  private final PublicKey wechatPayPublicKey;
105
106  public Transfer(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
107    this.mchid = mchid;
108    this.certificateSerialNo = certificateSerialNo;
109    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
110    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
111    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
112  }
113
114  public String encrypt(String plainText) {
115    return WXPayUtility.encrypt(this.wechatPayPublicKey, plainText);
116  }
117
118  public static class TransferToUserRequest {
119    @SerializedName("sub_mchid")
120    public String subMchid;
121  
122    @SerializedName("appid")
123    public String appid;
124  
125    @SerializedName("out_bill_no")
126    public String outBillNo;
127  
128    @SerializedName("transfer_scene_id")
129    public String transferSceneId;
130  
131    @SerializedName("user_name")
132    public String userName;
133  
134    @SerializedName("transfer_amount")
135    public Long transferAmount;
136  
137    @SerializedName("transfer_remark")
138    public String transferRemark;
139  
140    @SerializedName("notify_url")
141    public String notifyUrl;
142  
143    @SerializedName("user_recv_perception")
144    public String userRecvPerception;
145  
146    @SerializedName("transfer_scene_report_infos")
147    public List<TransferSceneReportInfo> transferSceneReportInfos;
148  
149    @SerializedName("authorization_id")
150    public String authorizationId;
151  }
152  
153  public static class TransferBillEntity {
154    @SerializedName("sub_mchid")
155    public String subMchid;
156  
157    @SerializedName("mchid")
158    public String mchid;
159  
160    @SerializedName("out_bill_no")
161    public String outBillNo;
162  
163    @SerializedName("transfer_bill_no")
164    public String transferBillNo;
165  
166    @SerializedName("appid")
167    public String appid;
168  
169    @SerializedName("state")
170    public TransferBillStatus state;
171  
172    @SerializedName("transfer_amount")
173    public Long transferAmount;
174  
175    @SerializedName("transfer_remark")
176    public String transferRemark;
177  
178    @SerializedName("fail_reason")
179    public String failReason;
180  
181    @SerializedName("openid")
182    public String openid;
183  
184    @SerializedName("user_name")
185    public String userName;
186  
187    @SerializedName("create_time")
188    public String createTime;
189  
190    @SerializedName("update_time")
191    public String updateTime;
192  }
193  
194  public static class TransferSceneReportInfo {
195    @SerializedName("info_type")
196    public String infoType;
197  
198    @SerializedName("info_content")
199    public String infoContent;
200  }
201  
202  public enum TransferBillStatus {
203    @SerializedName("ACCEPTED")
204    ACCEPTED,
205    @SerializedName("SUCCESS")
206    SUCCESS
207  }
208  
209}
210

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	"time"
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 := &TransferToUserRequest{
28		SubMchid:           wxpay_utility.String("1900001121"),
29		Appid:              wxpay_utility.String("wxf636efh567hg4356"),
30		OutBillNo:          wxpay_utility.String("plfk2020042013"),
31		TransferSceneId:    wxpay_utility.String("1000"),
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		AuthorizationId: wxpay_utility.String("201202504101000123456789012"),
42	}
43
44	response, err := Transfer(config, request)
45	if err != nil {
46		fmt.Printf("请求失败: %+v\n", err)
47		// TODO: 请求失败，根据状态码执行不同的处理
48		return
49	}
50
51	// TODO: 请求成功，继续业务逻辑
52	fmt.Printf("请求成功: %+v\n", response)
53}
54
55func Transfer(config *wxpay_utility.MchConfig, request *TransferToUserRequest) (response *TransferBillEntity, err error) {
56	const (
57		host   = "https://api.mch.weixin.qq.com"
58		method = "POST"
59		path   = "/v3/fund-app/mch-transfer/partner/transfer-bills/transfer"
60	)
61
62	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
63	if err != nil {
64		return nil, err
65	}
66	reqBody, err := json.Marshal(request)
67	if err != nil {
68		return nil, err
69	}
70	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
71	if err != nil {
72		return nil, err
73	}
74	httpRequest.Header.Set("Accept", "application/json")
75	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
76	httpRequest.Header.Set("Content-Type", "application/json")
77	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
78	if err != nil {
79		return nil, err
80	}
81	httpRequest.Header.Set("Authorization", authorization)
82
83	client := &http.Client{}
84	httpResponse, err := client.Do(httpRequest)
85	if err != nil {
86		return nil, err
87	}
88	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
89	if err != nil {
90		return nil, err
91	}
92	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
93		// 2XX 成功，验证应答签名
94		err = wxpay_utility.ValidateResponse(
95			config.WechatPayPublicKeyId(),
96			config.WechatPayPublicKey(),
97			&httpResponse.Header,
98			respBody,
99		)
100		if err != nil {
101			return nil, err
102		}
103		response := &TransferBillEntity{}
104		if err := json.Unmarshal(respBody, response); err != nil {
105			return nil, err
106		}
107
108		return response, nil
109	} else {
110		return nil, wxpay_utility.NewApiException(
111			httpResponse.StatusCode,
112			httpResponse.Header,
113			respBody,
114		)
115	}
116}
117
118type TransferToUserRequest struct {
119	SubMchid                 *string                   `json:"sub_mchid,omitempty"`
120	Appid                    *string                   `json:"appid,omitempty"`
121	OutBillNo                *string                   `json:"out_bill_no,omitempty"`
122	TransferSceneId          *string                   `json:"transfer_scene_id,omitempty"`
123	UserName                 *string                   `json:"user_name,omitempty"`
124	TransferAmount           *int64                    `json:"transfer_amount,omitempty"`
125	TransferRemark           *string                   `json:"transfer_remark,omitempty"`
126	NotifyUrl                *string                   `json:"notify_url,omitempty"`
127	UserRecvPerception       *string                   `json:"user_recv_perception,omitempty"`
128	TransferSceneReportInfos []TransferSceneReportInfo `json:"transfer_scene_report_infos,omitempty"`
129	AuthorizationId          *string                   `json:"authorization_id,omitempty"`
130}
131
132type TransferBillEntity struct {
133	SubMchid       *string             `json:"sub_mchid,omitempty"`
134	Mchid          *string             `json:"mchid,omitempty"`
135	OutBillNo      *string             `json:"out_bill_no,omitempty"`
136	TransferBillNo *string             `json:"transfer_bill_no,omitempty"`
137	Appid          *string             `json:"appid,omitempty"`
138	State          *TransferBillStatus `json:"state,omitempty"`
139	TransferAmount *int64              `json:"transfer_amount,omitempty"`
140	TransferRemark *string             `json:"transfer_remark,omitempty"`
141	FailReason     *string             `json:"fail_reason,omitempty"`
142	Openid         *string             `json:"openid,omitempty"`
143	UserName       *string             `json:"user_name,omitempty"`
144	CreateTime     *time.Time          `json:"create_time,omitempty"`
145	UpdateTime     *string             `json:"update_time,omitempty"`
146}
147
148type TransferSceneReportInfo struct {
149	InfoType    *string `json:"info_type,omitempty"`
150	InfoContent *string `json:"info_content,omitempty"`
151}
152
153type TransferBillStatus string
154
155func (e TransferBillStatus) Ptr() *TransferBillStatus {
156	return &e
157}
158
159const (
160	TRANSFERBILLSTATUS_ACCEPTED TransferBillStatus = "ACCEPTED"
161	TRANSFERBILLSTATUS_SUCCESS  TransferBillStatus = "SUCCESS"
162)
163