发起公益捐赠

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 * 发起公益捐赠
24 */
25public class TransferCharityDonation {
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/charity-transfer-bills";
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    TransferCharityDonation client = new TransferCharityDonation(
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    TransferCharityDonationRequest request = new TransferCharityDonationRequest();
41    request.outBudgetNo = "budget202506030102";
42    request.outTransferNo = "trans202506300102";
43    request.transactionInfo = new TransactionInfo();
44    request.transactionInfo.transactionType = TransactionType.WXPAY;
45    request.transactionInfo.transactionId = "4217752501201407033233368018";
46    request.sponsorMchid = "1900001109";
47    request.receiveMchid = "1900001109";
48    request.amount = 10000L;
49    request.transferRemark = "帮助受助群体爱心捐款";
50    try {
51      TransferCharityBillEntity response = client.run(request);
52
53      // TODO: 请求成功，继续业务逻辑
54      System.out.println(response);
55    } catch (WXPayUtility.ApiException e) {
56      // TODO: 请求失败，根据状态码执行不同的逻辑
57      e.printStackTrace();
58    }
59  }
60
61  public TransferCharityBillEntity run(TransferCharityDonationRequest request) {
62    String uri = PATH;
63    String reqBody = WXPayUtility.toJson(request);
64
65    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
66    reqBuilder.addHeader("Accept", "application/json");
67    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
68    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
69    reqBuilder.addHeader("Content-Type", "application/json");
70    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
71    reqBuilder.method(METHOD, requestBody);
72    Request httpRequest = reqBuilder.build();
73
74    // 发送HTTP请求
75    OkHttpClient client = new OkHttpClient.Builder().build();
76    try (Response httpResponse = client.newCall(httpRequest).execute()) {
77      String respBody = WXPayUtility.extractBody(httpResponse);
78      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
79        // 2XX 成功，验证应答签名
80        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
81            httpResponse.headers(), respBody);
82
83        // 从HTTP应答报文构建返回数据
84        return WXPayUtility.fromJson(respBody, TransferCharityBillEntity.class);
85      } else {
86        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
87      }
88    } catch (IOException e) {
89      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
90    }
91  }
92
93  private final String mchid;
94  private final String certificateSerialNo;
95  private final PrivateKey privateKey;
96  private final String wechatPayPublicKeyId;
97  private final PublicKey wechatPayPublicKey;
98
99  public TransferCharityDonation(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
100    this.mchid = mchid;
101    this.certificateSerialNo = certificateSerialNo;
102    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
103    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
104    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
105  }
106
107  public static class TransferCharityDonationRequest {
108    @SerializedName("out_budget_no")
109    public String outBudgetNo;
110  
111    @SerializedName("out_transfer_no")
112    public String outTransferNo;
113  
114    @SerializedName("transaction_info")
115    public TransactionInfo transactionInfo;
116  
117    @SerializedName("sponsor_mchid")
118    public String sponsorMchid;
119  
120    @SerializedName("receive_mchid")
121    public String receiveMchid;
122  
123    @SerializedName("amount")
124    public Long amount;
125  
126    @SerializedName("transfer_remark")
127    public String transferRemark;
128  }
129  
130  public static class TransferCharityBillEntity {
131    @SerializedName("out_budget_no")
132    public String outBudgetNo;
133  
134    @SerializedName("budget_id")
135    public String budgetId;
136  
137    @SerializedName("out_transfer_no")
138    public String outTransferNo;
139  
140    @SerializedName("transfer_id")
141    public String transferId;
142  
143    @SerializedName("amount")
144    public Long amount;
145  
146    @SerializedName("transfer_remark")
147    public String transferRemark;
148  
149    @SerializedName("receive_mchid")
150    public String receiveMchid;
151  
152    @SerializedName("state")
153    public TransferBillStatus state;
154  
155    @SerializedName("create_time")
156    public String createTime;
157  
158    @SerializedName("success_time")
159    public String successTime;
160  }
161  
162  public static class TransactionInfo {
163    @SerializedName("transaction_type")
164    public TransactionType transactionType;
165  
166    @SerializedName("transaction_id")
167    public String transactionId;
168  }
169  
170  public enum TransferBillStatus {
171    @SerializedName("ACCEPTED")
172    ACCEPTED,
173    @SerializedName("SUCCESS")
174    SUCCESS,
175    @SerializedName("CLOSE")
176    CLOSE
177  }
178  
179  public enum TransactionType {
180    @SerializedName("WXPAY")
181    WXPAY
182  }
183  
184}
185

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 := &TransferCharityDonationRequest{
27		OutBudgetNo:   wxpay_utility.String("budget202506030102"),
28		OutTransferNo: wxpay_utility.String("trans202506300102"),
29		TransactionInfo: &TransactionInfo{
30			TransactionType: TRANSACTIONTYPE_WXPAY.Ptr(),
31			TransactionId:   wxpay_utility.String("4217752501201407033233368018"),
32		},
33		SponsorMchid:   wxpay_utility.String("1900001109"),
34		ReceiveMchid:   wxpay_utility.String("1900001109"),
35		Amount:         wxpay_utility.Int64(10000),
36		TransferRemark: wxpay_utility.String("帮助受助群体爱心捐款"),
37	}
38
39	response, err := TransferCharityDonation(config, request)
40	if err != nil {
41		fmt.Printf("请求失败: %+v\n", err)
42		// TODO: 请求失败，根据状态码执行不同的处理
43		return
44	}
45
46	// TODO: 请求成功，继续业务逻辑
47	fmt.Printf("请求成功: %+v\n", response)
48}
49
50func TransferCharityDonation(config *wxpay_utility.MchConfig, request *TransferCharityDonationRequest) (response *TransferCharityBillEntity, err error) {
51	const (
52		host   = "https://api.mch.weixin.qq.com"
53		method = "POST"
54		path   = "/v3/fund-app/mch-transfer/partner/charity-transfer-bills"
55	)
56
57	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
58	if err != nil {
59		return nil, err
60	}
61	reqBody, err := json.Marshal(request)
62	if err != nil {
63		return nil, err
64	}
65	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
66	if err != nil {
67		return nil, err
68	}
69	httpRequest.Header.Set("Accept", "application/json")
70	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
71	httpRequest.Header.Set("Content-Type", "application/json")
72	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
73	if err != nil {
74		return nil, err
75	}
76	httpRequest.Header.Set("Authorization", authorization)
77
78	client := &http.Client{}
79	httpResponse, err := client.Do(httpRequest)
80	if err != nil {
81		return nil, err
82	}
83
84	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
85	if err != nil {
86		return nil, err
87	}
88
89	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
90		// 2XX 成功，验证应答签名
91		err = wxpay_utility.ValidateResponse(
92			config.WechatPayPublicKeyId(),
93			config.WechatPayPublicKey(),
94			&httpResponse.Header,
95			respBody,
96		)
97		if err != nil {
98			return nil, err
99		}
100
101		if err := json.Unmarshal(respBody, response); err != nil {
102			return nil, err
103		}
104
105		return response, nil
106	} else {
107		return nil, wxpay_utility.NewApiException(
108			httpResponse.StatusCode,
109			httpResponse.Header,
110			respBody,
111		)
112	}
113}
114
115type TransferCharityDonationRequest struct {
116	OutBudgetNo     *string          `json:"out_budget_no,omitempty"`
117	OutTransferNo   *string          `json:"out_transfer_no,omitempty"`
118	TransactionInfo *TransactionInfo `json:"transaction_info,omitempty"`
119	SponsorMchid    *string          `json:"sponsor_mchid,omitempty"`
120	ReceiveMchid    *string          `json:"receive_mchid,omitempty"`
121	Amount          *int64           `json:"amount,omitempty"`
122	TransferRemark  *string          `json:"transfer_remark,omitempty"`
123}
124
125type TransferCharityBillEntity struct {
126	OutBudgetNo    *string             `json:"out_budget_no,omitempty"`
127	BudgetId       *string             `json:"budget_id,omitempty"`
128	OutTransferNo  *string             `json:"out_transfer_no,omitempty"`
129	TransferId     *string             `json:"transfer_id,omitempty"`
130	Amount         *int64              `json:"amount,omitempty"`
131	TransferRemark *string             `json:"transfer_remark,omitempty"`
132	ReceiveMchid   *string             `json:"receive_mchid,omitempty"`
133	State          *TransferBillStatus `json:"state,omitempty"`
134	CreateTime     *string             `json:"create_time,omitempty"`
135	SuccessTime    *string             `json:"success_time,omitempty"`
136}
137
138type TransactionInfo struct {
139	TransactionType *TransactionType `json:"transaction_type,omitempty"`
140	TransactionId   *string          `json:"transaction_id,omitempty"`
141}
142
143type TransferBillStatus string
144
145func (e TransferBillStatus) Ptr() *TransferBillStatus {
146	return &e
147}
148
149const (
150	TRANSFERBILLSTATUS_ACCEPTED TransferBillStatus = "ACCEPTED"
151	TRANSFERBILLSTATUS_SUCCESS  TransferBillStatus = "SUCCESS"
152	TRANSFERBILLSTATUS_CLOSE    TransferBillStatus = "CLOSE"
153)
154
155type TransactionType string
156
157func (e TransactionType) Ptr() *TransactionType {
158	return &e
159}
160
161const (
162	TRANSACTIONTYPE_WXPAY TransactionType = "WXPAY"
163)
164

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/fund-app/mch-transfer/partner/charity-transfer-bills \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: application/json" \
6  -d '{
7    "out_budget_no" : "budget202506030102",
8    "out_transfer_no" : "trans202506300102",
9    "transaction_info" : {
10      "transaction_type" : "WXPAY",
11      "transaction_id" : "4217752501201407033233368018"
12    },
13    "sponsor_mchid" : "1900001109",
14    "receive_mchid" : "1900001109",
15    "amount" : 10000,
16    "transfer_remark" : "帮助受助群体爱心捐款"
17  }'
18