撤销转账

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 * 撤销转账
24 */
25public class TransferBillCancel {
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/out-bill-no/{out_bill_no}/cancel";
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    TransferBillCancel client = new TransferBillCancel(
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    TransferBillCancelRequest request = new TransferBillCancelRequest();
41    request.outBillNo = "plfk2020042013";
42    request.subMchid = "1900001109";
43    try {
44      TransferBillEntity response = client.run(request);
45
46      // TODO: 请求成功，继续业务逻辑
47      System.out.println(response);
48    } catch (WXPayUtility.ApiException e) {
49      // TODO: 请求失败，根据状态码执行不同的逻辑
50      e.printStackTrace();
51    }
52  }
53
54  public TransferBillEntity run(TransferBillCancelRequest request) {
55    String uri = PATH;
56    uri = uri.replace("{out_bill_no}", WXPayUtility.urlEncode(request.outBillNo));
57    String reqBody = WXPayUtility.toJson(request);
58
59    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
60    reqBuilder.addHeader("Accept", "application/json");
61    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
62    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
63    reqBuilder.addHeader("Content-Type", "application/json");
64    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
65    reqBuilder.method(METHOD, requestBody);
66    Request httpRequest = reqBuilder.build();
67
68    // 发送HTTP请求
69    OkHttpClient client = new OkHttpClient.Builder().build();
70    try (Response httpResponse = client.newCall(httpRequest).execute()) {
71      String respBody = WXPayUtility.extractBody(httpResponse);
72      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
73        // 2XX 成功，验证应答签名
74        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
75            httpResponse.headers(), respBody);
76
77        // 从HTTP应答报文构建返回数据
78        return WXPayUtility.fromJson(respBody, TransferBillEntity.class);
79      } else {
80        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
81      }
82    } catch (IOException e) {
83      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
84    }
85  }
86
87  private final String mchid;
88  private final String certificateSerialNo;
89  private final PrivateKey privateKey;
90  private final String wechatPayPublicKeyId;
91  private final PublicKey wechatPayPublicKey;
92
93  public TransferBillCancel(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
94    this.mchid = mchid;
95    this.certificateSerialNo = certificateSerialNo;
96    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
97    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
98    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
99  }
100
101  public static class TransferBillCancelRequest {
102    @SerializedName("sub_mchid")
103    public String subMchid;
104  
105    @SerializedName("out_bill_no")
106    @Expose(serialize = false)
107    public String outBillNo;
108  }
109  
110  public static class TransferBillEntity {
111    @SerializedName("sub_mchid")
112    public String subMchid;
113  
114    @SerializedName("mchid")
115    public String mchid;
116  
117    @SerializedName("out_bill_no")
118    public String outBillNo;
119  
120    @SerializedName("transfer_bill_no")
121    public String transferBillNo;
122  
123    @SerializedName("appid")
124    public String appid;
125  
126    @SerializedName("state")
127    public TransferBillStatus state;
128  
129    @SerializedName("transfer_amount")
130    public Long transferAmount;
131  
132    @SerializedName("transfer_remark")
133    public String transferRemark;
134  
135    @SerializedName("fail_reason")
136    public String failReason;
137  
138    @SerializedName("openid")
139    public String openid;
140  
141    @SerializedName("user_name")
142    public String userName;
143  
144    @SerializedName("create_time")
145    public String createTime;
146  
147    @SerializedName("update_time")
148    public String updateTime;
149  }
150  
151  public enum TransferBillStatus {
152    @SerializedName("ACCEPTED")
153    ACCEPTED,
154    @SerializedName("PROCESSING")
155    PROCESSING,
156    @SerializedName("WAIT_USER_CONFIRM")
157    WAIT_USER_CONFIRM,
158    @SerializedName("TRANSFERING")
159    TRANSFERING,
160    @SerializedName("SUCCESS")
161    SUCCESS,
162    @SerializedName("FAIL")
163    FAIL,
164    @SerializedName("CANCELING")
165    CANCELING,
166    @SerializedName("CANCELLED")
167    CANCELLED
168  }
169  
170}
171

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	"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/partner/4013080340
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/partner/4013080340
18		"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
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/partner/4013038589
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 := &TransferBillCancelRequest{
29		OutBillNo: wxpay_utility.String("plfk2020042013"),
30		SubMchid:  wxpay_utility.String("1900001109"),
31	}
32
33	response, err := TransferBillCancel(config, request)
34	if err != nil {
35		fmt.Printf("请求失败: %+v\n", err)
36		// TODO: 请求失败，根据状态码执行不同的处理
37		return
38	}
39
40	// TODO: 请求成功，继续业务逻辑
41	fmt.Printf("请求成功: %+v\n", response)
42}
43
44func TransferBillCancel(config *wxpay_utility.MchConfig, request *TransferBillCancelRequest) (response *TransferBillEntity, err error) {
45	const (
46		host   = "https://api.mch.weixin.qq.com"
47		method = "POST"
48		path   = "/v3/fund-app/mch-transfer/partner/transfer-bills/out-bill-no/{out_bill_no}/cancel"
49	)
50
51	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
52	if err != nil {
53		return nil, err
54	}
55	reqUrl.Path = strings.Replace(reqUrl.Path, "{out_bill_no}", url.PathEscape(*request.OutBillNo), -1)
56	reqBody, err := json.Marshal(request)
57	if err != nil {
58		return nil, err
59	}
60	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
61	if err != nil {
62		return nil, err
63	}
64	httpRequest.Header.Set("Accept", "application/json")
65	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
66	httpRequest.Header.Set("Content-Type", "application/json")
67	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
68	if err != nil {
69		return nil, err
70	}
71	httpRequest.Header.Set("Authorization", authorization)
72
73	client := &http.Client{}
74	httpResponse, err := client.Do(httpRequest)
75	if err != nil {
76		return nil, err
77	}
78
79	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
80	if err != nil {
81		return nil, err
82	}
83
84	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
85		// 2XX 成功，验证应答签名
86		err = wxpay_utility.ValidateResponse(
87			config.WechatPayPublicKeyId(),
88			config.WechatPayPublicKey(),
89			&httpResponse.Header,
90			respBody,
91		)
92		if err != nil {
93			return nil, err
94		}
95
96		if err := json.Unmarshal(respBody, response); err != nil {
97			return nil, err
98		}
99
100		return response, nil
101	} else {
102		return nil, wxpay_utility.NewApiException(
103			httpResponse.StatusCode,
104			httpResponse.Header,
105			respBody,
106		)
107	}
108}
109
110type TransferBillCancelRequest struct {
111	SubMchid  *string `json:"sub_mchid,omitempty"`
112	OutBillNo *string `json:"out_bill_no,omitempty"`
113}
114
115func (o *TransferBillCancelRequest) MarshalJSON() ([]byte, error) {
116	type Alias TransferBillCancelRequest
117	a := &struct {
118		OutBillNo *string `json:"out_bill_no,omitempty"`
119		*Alias
120	}{
121		// 序列化时移除非 Body 字段
122		OutBillNo: nil,
123		Alias:     (*Alias)(o),
124	}
125	return json.Marshal(a)
126}
127
128type TransferBillEntity struct {
129	SubMchid       *string             `json:"sub_mchid,omitempty"`
130	Mchid          *string             `json:"mchid,omitempty"`
131	OutBillNo      *string             `json:"out_bill_no,omitempty"`
132	TransferBillNo *string             `json:"transfer_bill_no,omitempty"`
133	Appid          *string             `json:"appid,omitempty"`
134	State          *TransferBillStatus `json:"state,omitempty"`
135	TransferAmount *int64              `json:"transfer_amount,omitempty"`
136	TransferRemark *string             `json:"transfer_remark,omitempty"`
137	FailReason     *string             `json:"fail_reason,omitempty"`
138	Openid         *string             `json:"openid,omitempty"`
139	UserName       *string             `json:"user_name,omitempty"`
140	CreateTime     *time.Time          `json:"create_time,omitempty"`
141	UpdateTime     *string             `json:"update_time,omitempty"`
142}
143
144type TransferBillStatus string
145
146func (e TransferBillStatus) Ptr() *TransferBillStatus {
147	return &e
148}
149
150const (
151	TRANSFERBILLSTATUS_ACCEPTED          TransferBillStatus = "ACCEPTED"
152	TRANSFERBILLSTATUS_PROCESSING        TransferBillStatus = "PROCESSING"
153	TRANSFERBILLSTATUS_WAIT_USER_CONFIRM TransferBillStatus = "WAIT_USER_CONFIRM"
154	TRANSFERBILLSTATUS_TRANSFERING       TransferBillStatus = "TRANSFERING"
155	TRANSFERBILLSTATUS_SUCCESS           TransferBillStatus = "SUCCESS"
156	TRANSFERBILLSTATUS_FAIL              TransferBillStatus = "FAIL"
157	TRANSFERBILLSTATUS_CANCELING         TransferBillStatus = "CANCELING"
158	TRANSFERBILLSTATUS_CANCELLED         TransferBillStatus = "CANCELLED"
159)
160

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/fund-app/mch-transfer/partner/transfer-bills/out-bill-no/plfk2020042013/cancel \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: application/json" \
6  -d '{
7    "sub_mchid" : "1900001109"
8  }'
9