解锁公益捐赠预算

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 * 解锁公益捐赠预算
24 */
25public class UnlockBudget {
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-budget/{out_budget_no}/unlock";
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    UnlockBudget client = new UnlockBudget(
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    UnlockBudgetRequest request = new UnlockBudgetRequest();
41    request.outBudgetNo = "budget202506300102";
42    request.sponsorMchid = "1900001109";
43    request.unlockRemark = "公益活动结束，解锁资金";
44    try {
45      BudgetInfo response = client.run(request);
46
47      // TODO: 请求成功，继续业务逻辑
48      System.out.println(response);
49    } catch (WXPayUtility.ApiException e) {
50      // TODO: 请求失败，根据状态码执行不同的逻辑
51      e.printStackTrace();
52    }
53  }
54
55  public BudgetInfo run(UnlockBudgetRequest request) {
56    String uri = PATH;
57    uri = uri.replace("{out_budget_no}", WXPayUtility.urlEncode(request.outBudgetNo));
58    String reqBody = WXPayUtility.toJson(request);
59
60    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
61    reqBuilder.addHeader("Accept", "application/json");
62    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
63    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
64    reqBuilder.addHeader("Content-Type", "application/json");
65    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
66    reqBuilder.method(METHOD, requestBody);
67    Request httpRequest = reqBuilder.build();
68
69    // 发送HTTP请求
70    OkHttpClient client = new OkHttpClient.Builder().build();
71    try (Response httpResponse = client.newCall(httpRequest).execute()) {
72      String respBody = WXPayUtility.extractBody(httpResponse);
73      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
74        // 2XX 成功，验证应答签名
75        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
76            httpResponse.headers(), respBody);
77
78        // 从HTTP应答报文构建返回数据
79        return WXPayUtility.fromJson(respBody, BudgetInfo.class);
80      } else {
81        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
82      }
83    } catch (IOException e) {
84      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
85    }
86  }
87
88  private final String mchid;
89  private final String certificateSerialNo;
90  private final PrivateKey privateKey;
91  private final String wechatPayPublicKeyId;
92  private final PublicKey wechatPayPublicKey;
93
94  public UnlockBudget(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
95    this.mchid = mchid;
96    this.certificateSerialNo = certificateSerialNo;
97    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
98    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
99    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
100  }
101
102  public static class UnlockBudgetRequest {
103    @SerializedName("out_budget_no")
104    @Expose(serialize = false)
105    public String outBudgetNo;
106  
107    @SerializedName("sponsor_mchid")
108    public String sponsorMchid;
109  
110    @SerializedName("unlock_remark")
111    public String unlockRemark;
112  }
113  
114  public static class BudgetInfo {
115    @SerializedName("sp_mchid")
116    public String spMchid;
117  
118    @SerializedName("out_budget_no")
119    public String outBudgetNo;
120  
121    @SerializedName("budget_id")
122    public String budgetId;
123  
124    @SerializedName("amount")
125    public Long amount;
126  
127    @SerializedName("sponsor_mchid")
128    public String sponsorMchid;
129  
130    @SerializedName("activity_name")
131    public String activityName;
132  
133    @SerializedName("activity_remark")
134    public String activityRemark;
135  
136    @SerializedName("state")
137    public BudgetOrderState state;
138  
139    @SerializedName("unlock_remark")
140    public String unlockRemark;
141  
142    @SerializedName("locked_time")
143    public String lockedTime;
144  
145    @SerializedName("finished_time")
146    public String finishedTime;
147  }
148  
149  public enum BudgetOrderState {
150    @SerializedName("FINISHED")
151    FINISHED
152  }
153  
154}
155

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)
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 := &UnlockBudgetRequest{
28		OutBudgetNo:  wxpay_utility.String("budget202506300102"),
29		SponsorMchid: wxpay_utility.String("1900001109"),
30		UnlockRemark: wxpay_utility.String("公益活动结束，解锁资金"),
31	}
32
33	response, err := UnlockBudget(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 UnlockBudget(config *wxpay_utility.MchConfig, request *UnlockBudgetRequest) (response *BudgetInfo, err error) {
45	const (
46		host   = "https://api.mch.weixin.qq.com"
47		method = "POST"
48		path   = "/v3/fund-app/mch-transfer/partner/charity-budget/{out_budget_no}/unlock"
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_budget_no}", url.PathEscape(*request.OutBudgetNo), -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 UnlockBudgetRequest struct {
111	OutBudgetNo  *string `json:"out_budget_no,omitempty"`
112	SponsorMchid *string `json:"sponsor_mchid,omitempty"`
113	UnlockRemark *string `json:"unlock_remark,omitempty"`
114}
115
116func (o *UnlockBudgetRequest) MarshalJSON() ([]byte, error) {
117	type Alias UnlockBudgetRequest
118	a := &struct {
119		OutBudgetNo *string `json:"out_budget_no,omitempty"`
120		*Alias
121	}{
122		// 序列化时移除非 Body 字段
123		OutBudgetNo: nil,
124		Alias:       (*Alias)(o),
125	}
126	return json.Marshal(a)
127}
128
129type BudgetInfo struct {
130	SpMchid        *string           `json:"sp_mchid,omitempty"`
131	OutBudgetNo    *string           `json:"out_budget_no,omitempty"`
132	BudgetId       *string           `json:"budget_id,omitempty"`
133	Amount         *int64            `json:"amount,omitempty"`
134	SponsorMchid   *string           `json:"sponsor_mchid,omitempty"`
135	ActivityName   *string           `json:"activity_name,omitempty"`
136	ActivityRemark *string           `json:"activity_remark,omitempty"`
137	State          *BudgetOrderState `json:"state,omitempty"`
138	UnlockRemark   *string           `json:"unlock_remark,omitempty"`
139	LockedTime     *string           `json:"locked_time,omitempty"`
140	FinishedTime   *string           `json:"finished_time,omitempty"`
141}
142
143type BudgetOrderState string
144
145func (e BudgetOrderState) Ptr() *BudgetOrderState {
146	return &e
147}
148
149const (
150	BUDGETORDERSTATE_FINISHED BudgetOrderState = "FINISHED"
151)
152

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/fund-app/mch-transfer/partner/charity-budget/budget202506300102/unlock \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: application/json" \
6  -d '{
7    "sponsor_mchid" : "1900001109",
8    "unlock_remark" : "公益活动结束，解锁资金"
9  }'
10