请求撤销赔付

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 * 请求撤销赔付
24 */
25public class CompensationBillCancel {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/v3/platsolution/ecommerce/mch-transfer/compensate-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    CompensationBillCancel client = new CompensationBillCancel(
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    CompensationBillCancelRequest request = new CompensationBillCancelRequest();
41    request.outBillNo = "plfk2020042013";
42    try {
43      CancelTransferResponse response = client.run(request);
44
45      // TODO: 请求成功，继续业务逻辑
46      System.out.println(response);
47    } catch (WXPayUtility.ApiException e) {
48      // TODO: 请求失败，根据状态码执行不同的逻辑
49      e.printStackTrace();
50    }
51  }
52
53  public CancelTransferResponse run(CompensationBillCancelRequest request) {
54    String uri = PATH;
55    uri = uri.replace("{out_bill_no}", WXPayUtility.urlEncode(request.outBillNo));
56
57    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
58    reqBuilder.addHeader("Accept", "application/json");
59    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
60    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo, privateKey, METHOD, uri, null));
61    reqBuilder.addHeader("Content-Type", "application/json");
62    RequestBody emptyBody = RequestBody.create(null, "");
63    reqBuilder.method(METHOD, emptyBody);
64    Request httpRequest = reqBuilder.build();
65
66    // 发送HTTP请求
67    OkHttpClient client = new OkHttpClient.Builder().build();
68    try (Response httpResponse = client.newCall(httpRequest).execute()) {
69      String respBody = WXPayUtility.extractBody(httpResponse);
70      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
71        // 2XX 成功，验证应答签名
72        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
73            httpResponse.headers(), respBody);
74
75        // 从HTTP应答报文构建返回数据
76        return WXPayUtility.fromJson(respBody, CancelTransferResponse.class);
77      } else {
78        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
79      }
80    } catch (IOException e) {
81      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
82    }
83  }
84
85  private final String mchid;
86  private final String certificateSerialNo;
87  private final PrivateKey privateKey;
88  private final String wechatPayPublicKeyId;
89  private final PublicKey wechatPayPublicKey;
90
91  public CompensationBillCancel(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
92    this.mchid = mchid;
93    this.certificateSerialNo = certificateSerialNo;
94    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
95    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
96    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
97  }
98
99  public static class CompensationBillCancelRequest {
100    @SerializedName("out_bill_no")
101    @Expose(serialize = false)
102    public String outBillNo;
103  }
104  
105  public static class CancelTransferResponse {
106    @SerializedName("out_bill_no")
107    public String outBillNo;
108  
109    @SerializedName("bill_id")
110    public String billId;
111  
112    @SerializedName("state")
113    public TransferStatus state;
114  
115    @SerializedName("cancel_accept_time")
116    public String cancelAcceptTime;
117  }
118  
119  public enum TransferStatus {
120    @SerializedName("ACCEPTED")
121    ACCEPTED,
122    @SerializedName("SUCCESS")
123    SUCCESS,
124    @SerializedName("CLOSED")
125    CLOSED,
126    @SerializedName("WAIT_USER_CONFIRM")
127    WAIT_USER_CONFIRM,
128    @SerializedName("CANCELING")
129    CANCELING,
130    @SerializedName("CANCELLED")
131    CANCELLED
132  }
133  
134}
135

1package main
2
3import (
4	"demo/wxpay_utility" // 引用微信支付工具库，参考 https://pay.weixin.qq.com/doc/v3/partner/4015119446
5	"encoding/json"
6	"fmt"
7	"net/http"
8	"net/url"
9	"strings"
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 := &CompensationBillCancelRequest{
28		OutBillNo: wxpay_utility.String("plfk2020042013"),
29	}
30
31	response, err := CompensationBillCancel(config, request)
32	if err != nil {
33		fmt.Printf("请求失败: %+v\n", err)
34		// TODO: 请求失败，根据状态码执行不同的处理
35		return
36	}
37
38	// TODO: 请求成功，继续业务逻辑
39	fmt.Printf("请求成功: %+v\n", response)
40}
41
42func CompensationBillCancel(config *wxpay_utility.MchConfig, request *CompensationBillCancelRequest) (response *CancelTransferResponse, err error) {
43	const (
44		host   = "https://api.mch.weixin.qq.com"
45		method = "POST"
46		path   = "/v3/platsolution/ecommerce/mch-transfer/compensate-bills/out-bill-no/{out_bill_no}/cancel"
47	)
48
49	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
50	if err != nil {
51		return nil, err
52	}
53	reqUrl.Path = strings.Replace(reqUrl.Path, "{out_bill_no}", url.PathEscape(*request.OutBillNo), -1)
54	httpRequest, err := http.NewRequest(method, reqUrl.String(), nil)
55	if err != nil {
56		return nil, err
57	}
58	httpRequest.Header.Set("Accept", "application/json")
59	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
60	httpRequest.Header.Set("Content-Type", "application/json")
61	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), nil)
62	if err != nil {
63		return nil, err
64	}
65	httpRequest.Header.Set("Authorization", authorization)
66
67	client := &http.Client{}
68	httpResponse, err := client.Do(httpRequest)
69	if err != nil {
70		return nil, err
71	}
72
73	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
74	if err != nil {
75		return nil, err
76	}
77
78	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
79		// 2XX 成功，验证应答签名
80		err = wxpay_utility.ValidateResponse(
81			config.WechatPayPublicKeyId(),
82			config.WechatPayPublicKey(),
83			&httpResponse.Header,
84			respBody,
85		)
86		if err != nil {
87			return nil, err
88		}
89
90		if err := json.Unmarshal(respBody, response); err != nil {
91			return nil, err
92		}
93
94		return response, nil
95	} else {
96		return nil, wxpay_utility.NewApiException(
97			httpResponse.StatusCode,
98			httpResponse.Header,
99			respBody,
100		)
101	}
102}
103
104type CompensationBillCancelRequest struct {
105	OutBillNo *string `json:"out_bill_no,omitempty"`
106}
107
108func (o *CompensationBillCancelRequest) MarshalJSON() ([]byte, error) {
109	type Alias CompensationBillCancelRequest
110	a := &struct {
111		OutBillNo *string `json:"out_bill_no,omitempty"`
112		*Alias
113	}{
114		// 序列化时移除非 Body 字段
115		OutBillNo: nil,
116		Alias:     (*Alias)(o),
117	}
118	return json.Marshal(a)
119}
120
121type CancelTransferResponse struct {
122	OutBillNo        *string         `json:"out_bill_no,omitempty"`
123	BillId           *string         `json:"bill_id,omitempty"`
124	State            *TransferStatus `json:"state,omitempty"`
125	CancelAcceptTime *time.Time      `json:"cancel_accept_time,omitempty"`
126}
127
128type TransferStatus string
129
130func (e TransferStatus) Ptr() *TransferStatus {
131	return &e
132}
133
134const (
135	TRANSFERSTATUS_ACCEPTED          TransferStatus = "ACCEPTED"
136	TRANSFERSTATUS_SUCCESS           TransferStatus = "SUCCESS"
137	TRANSFERSTATUS_CLOSED            TransferStatus = "CLOSED"
138	TRANSFERSTATUS_WAIT_USER_CONFIRM TransferStatus = "WAIT_USER_CONFIRM"
139	TRANSFERSTATUS_CANCELING         TransferStatus = "CANCELING"
140	TRANSFERSTATUS_CANCELLED         TransferStatus = "CANCELLED"
141)
142

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/platsolution/ecommerce/mch-transfer/compensate-bills/out-bill-no/plfk2020042013/cancel \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" 
5