解锁公益捐赠预算

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  }'
9

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

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	}
31
32	response, err := UnlockBudget(config, request)
33	if err != nil {
34		fmt.Printf("请求失败: %+v\n", err)
35		// TODO: 请求失败，根据状态码执行不同的处理
36		return
37	}
38
39	// TODO: 请求成功，继续业务逻辑
40	fmt.Printf("请求成功: %+v\n", response)
41}
42
43func UnlockBudget(config *wxpay_utility.MchConfig, request *UnlockBudgetRequest) (response *BudgetInfo, err error) {
44	const (
45		host   = "https://api.mch.weixin.qq.com"
46		method = "POST"
47		path   = "/v3/fund-app/mch-transfer/partner/charity-budget/{out_budget_no}/unlock"
48	)
49
50	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
51	if err != nil {
52		return nil, err
53	}
54	reqUrl.Path = strings.Replace(reqUrl.Path, "{out_budget_no}", url.PathEscape(*request.OutBudgetNo), -1)
55	reqBody, err := json.Marshal(request)
56	if err != nil {
57		return nil, err
58	}
59	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
60	if err != nil {
61		return nil, err
62	}
63	httpRequest.Header.Set("Accept", "application/json")
64	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
65	httpRequest.Header.Set("Content-Type", "application/json")
66	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
67	if err != nil {
68		return nil, err
69	}
70	httpRequest.Header.Set("Authorization", authorization)
71
72	client := &http.Client{}
73	httpResponse, err := client.Do(httpRequest)
74	if err != nil {
75		return nil, err
76	}
77	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
78	if err != nil {
79		return nil, err
80	}
81	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
82		// 2XX 成功，验证应答签名
83		err = wxpay_utility.ValidateResponse(
84			config.WechatPayPublicKeyId(),
85			config.WechatPayPublicKey(),
86			&httpResponse.Header,
87			respBody,
88		)
89		if err != nil {
90			return nil, err
91		}
92		response := &BudgetInfo{}
93		if err := json.Unmarshal(respBody, response); err != nil {
94			return nil, err
95		}
96
97		return response, nil
98	} else {
99		return nil, wxpay_utility.NewApiException(
100			httpResponse.StatusCode,
101			httpResponse.Header,
102			respBody,
103		)
104	}
105}
106
107type UnlockBudgetRequest struct {
108	OutBudgetNo  *string `json:"out_budget_no,omitempty"`
109	SponsorMchid *string `json:"sponsor_mchid,omitempty"`
110}
111
112func (o *UnlockBudgetRequest) MarshalJSON() ([]byte, error) {
113	type Alias UnlockBudgetRequest
114	a := &struct {
115		OutBudgetNo *string `json:"out_budget_no,omitempty"`
116		*Alias
117	}{
118		// 序列化时移除非 Body 字段
119		OutBudgetNo: nil,
120		Alias:       (*Alias)(o),
121	}
122	return json.Marshal(a)
123}
124
125type BudgetInfo struct {
126	SpMchid        *string           `json:"sp_mchid,omitempty"`
127	OutBudgetNo    *string           `json:"out_budget_no,omitempty"`
128	BudgetId       *string           `json:"budget_id,omitempty"`
129	Amount         *int64            `json:"amount,omitempty"`
130	SponsorMchid   *string           `json:"sponsor_mchid,omitempty"`
131	ActivityName   *string           `json:"activity_name,omitempty"`
132	ActivityRemark *string           `json:"activity_remark,omitempty"`
133	State          *BudgetOrderState `json:"state,omitempty"`
134	UnlockRemark   *string           `json:"unlock_remark,omitempty"`
135	LockedTime     *string           `json:"locked_time,omitempty"`
136	FinishedTime   *string           `json:"finished_time,omitempty"`
137}
138
139type BudgetOrderState string
140
141func (e BudgetOrderState) Ptr() *BudgetOrderState {
142	return &e
143}
144
145const (
146	BUDGETORDERSTATE_FINISHED  BudgetOrderState = "FINISHED"
147	BUDGETORDERSTATE_UNLOCKING BudgetOrderState = "UNLOCKING"
148)
149