发起异常退款

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/refund/domestic/refunds/50000000382019052709732678859/apply-abnormal-refund \
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    "out_refund_no" : "1217752501201407033233368018",
9    "type" : "USER_BANK_CARD",
10    "bank_type" : "ICBC_DEBIT",
11    "bank_account" : "d+xT+MQCvrLHUVDWv/8MR/dB7TkXLVfSrUxMPZy6jWWYzpRrEEaYQE8ZRGYoeorwC+w==",
12    "real_name" : "UPgQcZSdq3zOayJwZ5XLrHY2dZU1W2Cd"
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 * 发起异常退款
24 */
25public class CreateAbnormalRefund {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/v3/refund/domestic/refunds/{refund_id}/apply-abnormal-refund";
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    CreateAbnormalRefund client = new CreateAbnormalRefund(
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    CreateAbnormalRefundRequest request = new CreateAbnormalRefundRequest();
41    request.refundId = "50000000382019052709732678859";
42    request.outRefundNo = "1217752501201407033233368018";
43    request.type = AbnormalReceiveType.MERCHANT_BANK_CARD;
44    request.bankType = "ICBC_DEBIT";
45    request.bankAccount = client.encrypt("bank_account");
46    request.realName = client.encrypt("real_name");
47    try {
48      Refund response = client.run(request);
49        // TODO: 请求成功，继续业务逻辑
50        System.out.println(response);
51    } catch (WXPayUtility.ApiException e) {
52        // TODO: 请求失败，根据状态码执行不同的逻辑
53        e.printStackTrace();
54    }
55  }
56
57  public Refund run(CreateAbnormalRefundRequest request) {
58    String uri = PATH;
59    uri = uri.replace("{refund_id}", WXPayUtility.urlEncode(request.refundId));
60    String reqBody = WXPayUtility.toJson(request);
61
62    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
63    reqBuilder.addHeader("Accept", "application/json");
64    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
65    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
66    reqBuilder.addHeader("Content-Type", "application/json");
67    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
68    reqBuilder.method(METHOD, requestBody);
69    Request httpRequest = reqBuilder.build();
70
71    // 发送HTTP请求
72    OkHttpClient client = new OkHttpClient.Builder().build();
73    try (Response httpResponse = client.newCall(httpRequest).execute()) {
74      String respBody = WXPayUtility.extractBody(httpResponse);
75      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
76        // 2XX 成功，验证应答签名
77        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
78            httpResponse.headers(), respBody);
79
80        // 从HTTP应答报文构建返回数据
81        return WXPayUtility.fromJson(respBody, Refund.class);
82      } else {
83        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
84      }
85    } catch (IOException e) {
86      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
87    }
88  }
89
90  private final String mchid;
91  private final String certificateSerialNo;
92  private final PrivateKey privateKey;
93  private final String wechatPayPublicKeyId;
94  private final PublicKey wechatPayPublicKey;
95
96  public CreateAbnormalRefund(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
97    this.mchid = mchid;
98    this.certificateSerialNo = certificateSerialNo;
99    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
100    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
101    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
102  }
103
104  public String encrypt(String plainText) {
105    return WXPayUtility.encrypt(this.wechatPayPublicKey, plainText);
106  }
107
108  public static class CreateAbnormalRefundRequest {
109    @SerializedName("refund_id")
110    @Expose(serialize = false)
111    public String refundId;
112  
113    @SerializedName("out_refund_no")
114    public String outRefundNo;
115  
116    @SerializedName("type")
117    public AbnormalReceiveType type;
118  
119    @SerializedName("bank_type")
120    public String bankType;
121  
122    @SerializedName("bank_account")
123    public String bankAccount;
124  
125    @SerializedName("real_name")
126    public String realName;
127  }
128  
129  public static class Refund {
130    @SerializedName("refund_id")
131    public String refundId;
132  
133    @SerializedName("out_refund_no")
134    public String outRefundNo;
135  
136    @SerializedName("transaction_id")
137    public String transactionId;
138  
139    @SerializedName("out_trade_no")
140    public String outTradeNo;
141  
142    @SerializedName("channel")
143    public Channel channel;
144  
145    @SerializedName("user_received_account")
146    public String userReceivedAccount;
147  
148    @SerializedName("success_time")
149    public String successTime;
150  
151    @SerializedName("create_time")
152    public String createTime;
153  
154    @SerializedName("status")
155    public Status status;
156  
157    @SerializedName("funds_account")
158    public FundsAccount fundsAccount;
159  
160    @SerializedName("amount")
161    public Amount amount;
162  
163    @SerializedName("promotion_detail")
164    public List<Promotion> promotionDetail;
165  
166  }
167  
168  public enum AbnormalReceiveType {
169    @SerializedName("USER_BANK_CARD")
170    USER_BANK_CARD,
171    @SerializedName("MERCHANT_BANK_CARD")
172    MERCHANT_BANK_CARD
173  }
174  
175  public enum Channel {
176    @SerializedName("ORIGINAL")
177    ORIGINAL,
178    @SerializedName("BALANCE")
179    BALANCE,
180    @SerializedName("OTHER_BALANCE")
181    OTHER_BALANCE,
182    @SerializedName("OTHER_BANKCARD")
183    OTHER_BANKCARD
184  }
185  
186  public enum Status {
187    @SerializedName("SUCCESS")
188    SUCCESS,
189    @SerializedName("CLOSED")
190    CLOSED,
191    @SerializedName("PROCESSING")
192    PROCESSING,
193    @SerializedName("ABNORMAL")
194    ABNORMAL
195  }
196  
197  public enum FundsAccount {
198    @SerializedName("UNSETTLED")
199    UNSETTLED,
200    @SerializedName("AVAILABLE")
201    AVAILABLE,
202    @SerializedName("UNAVAILABLE")
203    UNAVAILABLE,
204    @SerializedName("OPERATION")
205    OPERATION,
206    @SerializedName("BASIC")
207    BASIC,
208    @SerializedName("ECNY_BASIC")
209    ECNY_BASIC
210  }
211  
212  public static class Amount {
213    @SerializedName("total")
214    public Long total;
215  
216    @SerializedName("refund")
217    public Long refund;
218  
219    @SerializedName("from")
220    public List<FundsFromItem> from;
221  
222    @SerializedName("payer_total")
223    public Long payerTotal;
224  
225    @SerializedName("payer_refund")
226    public Long payerRefund;
227  
228    @SerializedName("settlement_refund")
229    public Long settlementRefund;
230  
231    @SerializedName("settlement_total")
232    public Long settlementTotal;
233  
234    @SerializedName("discount_refund")
235    public Long discountRefund;
236  
237    @SerializedName("currency")
238    public String currency;
239  
240    @SerializedName("refund_fee")
241    public Long refundFee;
242  }
243  
244  public static class Promotion {
245    @SerializedName("promotion_id")
246    public String promotionId;
247  
248    @SerializedName("scope")
249    public PromotionScope scope;
250  
251    @SerializedName("type")
252    public PromotionType type;
253  
254    @SerializedName("amount")
255    public Long amount;
256  
257    @SerializedName("refund_amount")
258    public Long refundAmount;
259  
260    @SerializedName("goods_detail")
261    public List<GoodsDetail> goodsDetail;
262  }
263  
264  
265  public static class FundsFromItem {
266    @SerializedName("account")
267    public Account account;
268  
269    @SerializedName("amount")
270    public Long amount;
271  }
272  
273  public enum PromotionScope {
274    @SerializedName("GLOBAL")
275    GLOBAL,
276    @SerializedName("SINGLE")
277    SINGLE
278  }
279  
280  public enum PromotionType {
281    @SerializedName("CASH")
282    CASH,
283    @SerializedName("NOCASH")
284    NOCASH
285  }
286  
287  public static class GoodsDetail {
288    @SerializedName("merchant_goods_id")
289    public String merchantGoodsId;
290  
291    @SerializedName("wechatpay_goods_id")
292    public String wechatpayGoodsId;
293  
294    @SerializedName("goods_name")
295    public String goodsName;
296  
297    @SerializedName("unit_price")
298    public Long unitPrice;
299  
300    @SerializedName("refund_amount")
301    public Long refundAmount;
302  
303    @SerializedName("refund_quantity")
304    public Long refundQuantity;
305  }
306  
307  public enum Account {
308    @SerializedName("AVAILABLE")
309    AVAILABLE,
310    @SerializedName("UNAVAILABLE")
311    UNAVAILABLE
312  }
313  
314}

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	"strings"
11	"time"
12)
13
14func main() {
15	// TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/merchant/4013070756
16	config, err := wxpay_utility.CreateMchConfig(
17		"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
18		"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
19		"/path/to/apiclient_key.pem", // 商户API证书私钥文件路径，本地文件路径
20		"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
21		"/path/to/wxp_pub.pem",       // 微信支付公钥文件路径，本地文件路径
22	)
23	if err != nil {
24		fmt.Println(err)
25		return
26	}
27
28	request := &CreateAbnormalRefundRequest{
29		RefundId:    wxpay_utility.String("50000000382019052709732678859"),
30		OutRefundNo: wxpay_utility.String("1217752501201407033233368018"),
31		Type:        ABNORMALRECEIVETYPE_MERCHANT_BANK_CARD.Ptr(),
32		BankType:    wxpay_utility.String("ICBC_DEBIT"),
33		BankAccount: wxpay_utility.String("d+xT+MQCvrLHUVDWv/8MR/dB7TkXLVfSrUxMPZy6jWWYzpRrEEaYQE8ZRGYoeorwC+w=="), /*请传入wxpay_utility.EncryptOAEPWithPublicKey 加密结果*/
34		RealName:    wxpay_utility.String("UPgQcZSdq3zOayJwZ5XLrHY2dZU1W2Cd"),                                      /*请传入wxpay_utility.EncryptOAEPWithPublicKey 加密结果*/
35	}
36
37	response, err := CreateAbnormalRefund(config, request)
38	if err != nil {
39		fmt.Printf("请求失败: %+v\n", err)
40		// TODO: 请求失败，根据状态码执行不同的处理
41		return
42	}
43
44	// TODO: 请求成功，继续业务逻辑
45	fmt.Printf("请求成功: %+v\n", response)
46}
47
48func CreateAbnormalRefund(config *wxpay_utility.MchConfig, request *CreateAbnormalRefundRequest) (response *Refund, err error) {
49	const (
50		host   = "https://api.mch.weixin.qq.com"
51		method = "POST"
52		path   = "/v3/refund/domestic/refunds/{refund_id}/apply-abnormal-refund"
53	)
54
55	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
56	if err != nil {
57		return nil, err
58	}
59	reqUrl.Path = strings.Replace(reqUrl.Path, "{refund_id}", url.PathEscape(*request.RefundId), -1)
60	reqBody, err := json.Marshal(request)
61	if err != nil {
62		return nil, err
63	}
64	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
65	if err != nil {
66		return nil, err
67	}
68	httpRequest.Header.Set("Accept", "application/json")
69	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
70	httpRequest.Header.Set("Content-Type", "application/json")
71	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
72	if err != nil {
73		return nil, err
74	}
75	httpRequest.Header.Set("Authorization", authorization)
76
77	client := &http.Client{}
78	httpResponse, err := client.Do(httpRequest)
79	if err != nil {
80		return nil, err
81	}
82	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
83	if err != nil {
84		return nil, err
85	}
86	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
87		// 2XX 成功，验证应答签名
88		err = wxpay_utility.ValidateResponse(
89			config.WechatPayPublicKeyId(),
90			config.WechatPayPublicKey(),
91			&httpResponse.Header,
92			respBody,
93		)
94		if err != nil {
95			return nil, err
96		}
97		response := &Refund{}
98		if err := json.Unmarshal(respBody, response); err != nil {
99			return nil, err
100		}
101
102		return response, nil
103	} else {
104		return nil, wxpay_utility.NewApiException(
105			httpResponse.StatusCode,
106			httpResponse.Header,
107			respBody,
108		)
109	}
110}
111
112type CreateAbnormalRefundRequest struct {
113	RefundId    *string              `json:"refund_id,omitempty"`
114	OutRefundNo *string              `json:"out_refund_no,omitempty"`
115	Type        *AbnormalReceiveType `json:"type,omitempty"`
116	BankType    *string              `json:"bank_type,omitempty"`
117	BankAccount *string              `json:"bank_account,omitempty"`
118	RealName    *string              `json:"real_name,omitempty"`
119}
120
121func (o *CreateAbnormalRefundRequest) MarshalJSON() ([]byte, error) {
122	type Alias CreateAbnormalRefundRequest
123	a := &struct {
124		RefundId *string `json:"refund_id,omitempty"`
125		*Alias
126	}{
127		// 序列化时移除非 Body 字段
128		RefundId: nil,
129		Alias:    (*Alias)(o),
130	}
131	return json.Marshal(a)
132}
133
134type Refund struct {
135	RefundId            *string        `json:"refund_id,omitempty"`
136	OutRefundNo         *string        `json:"out_refund_no,omitempty"`
137	TransactionId       *string        `json:"transaction_id,omitempty"`
138	OutTradeNo          *string        `json:"out_trade_no,omitempty"`
139	Channel             *Channel       `json:"channel,omitempty"`
140	UserReceivedAccount *string        `json:"user_received_account,omitempty"`
141	SuccessTime         *time.Time     `json:"success_time,omitempty"`
142	CreateTime          *time.Time     `json:"create_time,omitempty"`
143	Status              *Status        `json:"status,omitempty"`
144	FundsAccount        *FundsAccount  `json:"funds_account,omitempty"`
145	Amount              *Amount        `json:"amount,omitempty"`
146	PromotionDetail     []Promotion    `json:"promotion_detail,omitempty"`
147}
148
149type AbnormalReceiveType string
150
151func (e AbnormalReceiveType) Ptr() *AbnormalReceiveType {
152	return &e
153}
154
155const (
156	ABNORMALRECEIVETYPE_USER_BANK_CARD     AbnormalReceiveType = "USER_BANK_CARD"
157	ABNORMALRECEIVETYPE_MERCHANT_BANK_CARD AbnormalReceiveType = "MERCHANT_BANK_CARD"
158)
159
160type Channel string
161
162func (e Channel) Ptr() *Channel {
163	return &e
164}
165
166const (
167	CHANNEL_ORIGINAL       Channel = "ORIGINAL"
168	CHANNEL_BALANCE        Channel = "BALANCE"
169	CHANNEL_OTHER_BALANCE  Channel = "OTHER_BALANCE"
170	CHANNEL_OTHER_BANKCARD Channel = "OTHER_BANKCARD"
171)
172
173type Status string
174
175func (e Status) Ptr() *Status {
176	return &e
177}
178
179const (
180	STATUS_SUCCESS    Status = "SUCCESS"
181	STATUS_CLOSED     Status = "CLOSED"
182	STATUS_PROCESSING Status = "PROCESSING"
183	STATUS_ABNORMAL   Status = "ABNORMAL"
184)
185
186type FundsAccount string
187
188func (e FundsAccount) Ptr() *FundsAccount {
189	return &e
190}
191
192const (
193	FUNDSACCOUNT_UNSETTLED   FundsAccount = "UNSETTLED"
194	FUNDSACCOUNT_AVAILABLE   FundsAccount = "AVAILABLE"
195	FUNDSACCOUNT_UNAVAILABLE FundsAccount = "UNAVAILABLE"
196	FUNDSACCOUNT_OPERATION   FundsAccount = "OPERATION"
197	FUNDSACCOUNT_BASIC       FundsAccount = "BASIC"
198	FUNDSACCOUNT_ECNY_BASIC  FundsAccount = "ECNY_BASIC"
199)
200
201type Amount struct {
202	Total            *int64          `json:"total,omitempty"`
203	Refund           *int64          `json:"refund,omitempty"`
204	From             []FundsFromItem `json:"from,omitempty"`
205	PayerTotal       *int64          `json:"payer_total,omitempty"`
206	PayerRefund      *int64          `json:"payer_refund,omitempty"`
207	SettlementRefund *int64          `json:"settlement_refund,omitempty"`
208	SettlementTotal  *int64          `json:"settlement_total,omitempty"`
209	DiscountRefund   *int64          `json:"discount_refund,omitempty"`
210	Currency         *string         `json:"currency,omitempty"`
211	RefundFee        *int64          `json:"refund_fee,omitempty"`
212}
213
214type Promotion struct {
215	PromotionId  *string         `json:"promotion_id,omitempty"`
216	Scope        *PromotionScope `json:"scope,omitempty"`
217	Type         *PromotionType  `json:"type,omitempty"`
218	Amount       *int64          `json:"amount,omitempty"`
219	RefundAmount *int64          `json:"refund_amount,omitempty"`
220	GoodsDetail  []GoodsDetail   `json:"goods_detail,omitempty"`
221}
222
223type FundsFromItem struct {
224	Account *Account `json:"account,omitempty"`
225	Amount  *int64   `json:"amount,omitempty"`
226}
227
228type PromotionScope string
229
230func (e PromotionScope) Ptr() *PromotionScope {
231	return &e
232}
233
234const (
235	PROMOTIONSCOPE_GLOBAL PromotionScope = "GLOBAL"
236	PROMOTIONSCOPE_SINGLE PromotionScope = "SINGLE"
237)
238
239type PromotionType string
240
241func (e PromotionType) Ptr() *PromotionType {
242	return &e
243}
244
245const (
246	PROMOTIONTYPE_CASH   PromotionType = "CASH"
247	PROMOTIONTYPE_NOCASH PromotionType = "NOCASH"
248)
249
250type GoodsDetail struct {
251	MerchantGoodsId  *string `json:"merchant_goods_id,omitempty"`
252	WechatpayGoodsId *string `json:"wechatpay_goods_id,omitempty"`
253	GoodsName        *string `json:"goods_name,omitempty"`
254	UnitPrice        *int64  `json:"unit_price,omitempty"`
255	RefundAmount     *int64  `json:"refund_amount,omitempty"`
256	RefundQuantity   *int64  `json:"refund_quantity,omitempty"`
257}
258
259type Account string
260
261func (e Account) Ptr() *Account {
262	return &e
263}
264
265const (
266	ACCOUNT_AVAILABLE   Account = "AVAILABLE"
267	ACCOUNT_UNAVAILABLE Account = "UNAVAILABLE"
268)