查询渠道额度

1curl -X GET \
2  https://api.mch.weixin.qq.com/v3/aggracct-bc/wb-channel/account/balance?mchid=1900016681&bal_account_no=8609cb22e1774a50a930e414cc71eca06121bcd266335cda230d24a7886a8d9f&card_no=card_no_example&sgn_no=sgn_no_example&req_scene=SJT_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Wechatpay-Serial: 5157F09EFDC096DE15EBE81A47057A7232F1B8E1"  
6

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/merchant/4014931831
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 * 查询渠道额度
24 */
25public class QueryAccountBalance {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "GET";
28  private static String PATH = "/v3/aggracct-bc/wb-channel/account/balance";
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/merchant/4013070756
32    QueryAccountBalance client = new QueryAccountBalance(
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/merchant/4013070756
34      "1DDE55AD98Exxxxxxxxxx",         // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/merchant/4013053053
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/merchant/4013038816
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    QueryAccountBalanceRequest request = new QueryAccountBalanceRequest();
41    request.mchid = "1900016681";
42    request.balAccountNo = "8609cb22e1774a50a930e414cc71eca06121bcd266335cda230d24a7886a8d9f";
43    request.cardNo = "cardNo_example";
44    request.sgnNo = "sgnNo_example";
45    request.reqScene = RequestScene.SJT_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT;
46    try {
47      AccountBalance response = client.run(request);
48        // TODO: 请求成功，继续业务逻辑
49        System.out.println(response);
50    } catch (WXPayUtility.ApiException e) {
51        // TODO: 请求失败，根据状态码执行不同的逻辑
52        e.printStackTrace();
53    }
54  }
55
56  public AccountBalance run(QueryAccountBalanceRequest request) {
57    String uri = PATH;
58    Map<String, Object> args = new HashMap<>();
59    args.put("mchid", request.mchid);
60    args.put("bal_account_no", request.balAccountNo);
61    args.put("card_no", request.cardNo);
62    args.put("sgn_no", request.sgnNo);
63    args.put("req_scene", request.reqScene);
64    String queryString = WXPayUtility.urlEncode(args);
65    if (!queryString.isEmpty()) {
66        uri = uri + "?" + queryString;
67    }
68
69    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
70    reqBuilder.addHeader("Accept", "application/json");
71    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
72    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo, privateKey, METHOD, uri, null));
73    reqBuilder.method(METHOD, null);
74    Request httpRequest = reqBuilder.build();
75
76    // 发送HTTP请求
77    OkHttpClient client = new OkHttpClient.Builder().build();
78    try (Response httpResponse = client.newCall(httpRequest).execute()) {
79      String respBody = WXPayUtility.extractBody(httpResponse);
80      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
81        // 2XX 成功，验证应答签名
82        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
83            httpResponse.headers(), respBody);
84
85        // 从HTTP应答报文构建返回数据
86        return WXPayUtility.fromJson(respBody, AccountBalance.class);
87      } else {
88        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
89      }
90    } catch (IOException e) {
91      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
92    }
93  }
94
95  private final String mchid;
96  private final String certificateSerialNo;
97  private final PrivateKey privateKey;
98  private final String wechatPayPublicKeyId;
99  private final PublicKey wechatPayPublicKey;
100
101  public QueryAccountBalance(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
102    this.mchid = mchid;
103    this.certificateSerialNo = certificateSerialNo;
104    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
105    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
106    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
107  }
108
109  public String encrypt(String plainText) {
110    return WXPayUtility.encrypt(this.wechatPayPublicKey, plainText);
111  }
112
113  public static class QueryAccountBalanceRequest {
114    @SerializedName("mchid")
115    @Expose(serialize = false)
116    public String mchid;
117  
118    @SerializedName("bal_account_no")
119    @Expose(serialize = false)
120    public String balAccountNo;
121  
122    @SerializedName("card_no")
123    @Expose(serialize = false)
124    public String cardNo;
125  
126    @SerializedName("sgn_no")
127    @Expose(serialize = false)
128    public String sgnNo;
129  
130    @SerializedName("req_scene")
131    @Expose(serialize = false)
132    public RequestScene reqScene;
133  }
134  
135  public static class AccountBalance {
136    @SerializedName("in_transit_reduction_exist")
137    public Boolean inTransitReductionExist;
138  
139    @SerializedName("balance")
140    public Long balance;
141  }
142  
143  public enum RequestScene {
144    @SerializedName("SJT_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT")
145    SJT_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT,
146    @SerializedName("SJT_MICRO_MERCHANT")
147    SJT_MICRO_MERCHANT,
148    @SerializedName("WX_SHOP_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT")
149    WX_SHOP_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT
150  }
151  
152}
153

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/merchant/4015119334
5	"encoding/json"
6	"fmt"
7	"net/http"
8	"net/url"
9)
10
11func main() {
12	// TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/merchant/4013070756
13	config, err := wxpay_utility.CreateMchConfig(
14		"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/merchant/4013070756
15		"1DDE55AD98Exxxxxxxxxx",      // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/merchant/4013053053
16		"/path/to/apiclient_key.pem", // 商户API证书私钥文件路径，本地文件路径
17		"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/merchant/4013038816
18		"/path/to/wxp_pub.pem",       // 微信支付公钥文件路径，本地文件路径
19	)
20	if err != nil {
21		fmt.Println(err)
22		return
23	}
24
25	request := &QueryAccountBalanceRequest{
26		Mchid:        wxpay_utility.String("1900016681"),
27		BalAccountNo: wxpay_utility.String("8609cb22e1774a50a930e414cc71eca06121bcd266335cda230d24a7886a8d9f"),
28		CardNo:       wxpay_utility.String("CardNo_example"),
29		SgnNo:        wxpay_utility.String("SgnNo_example"),
30		ReqScene:     REQUESTSCENE_SJT_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT.Ptr(),
31	}
32
33	response, err := QueryAccountBalance(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 QueryAccountBalance(config *wxpay_utility.MchConfig, request *QueryAccountBalanceRequest) (response *AccountBalance, err error) {
45	const (
46		host   = "https://api.mch.weixin.qq.com"
47		method = "GET"
48		path   = "/v3/aggracct-bc/wb-channel/account/balance"
49	)
50
51	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
52	if err != nil {
53		return nil, err
54	}
55	query := reqUrl.Query()
56	if request.Mchid != nil {
57		query.Add("mchid", *request.Mchid)
58	}
59	if request.BalAccountNo != nil {
60		query.Add("bal_account_no", *request.BalAccountNo)
61	}
62	if request.CardNo != nil {
63		query.Add("card_no", *request.CardNo)
64	}
65	if request.SgnNo != nil {
66		query.Add("sgn_no", *request.SgnNo)
67	}
68	if request.ReqScene != nil {
69		query.Add("req_scene", fmt.Sprintf("%v", *request.ReqScene))
70	}
71	reqUrl.RawQuery = query.Encode()
72	httpRequest, err := http.NewRequest(method, reqUrl.String(), nil)
73	if err != nil {
74		return nil, err
75	}
76	httpRequest.Header.Set("Accept", "application/json")
77	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
78	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), nil)
79	if err != nil {
80		return nil, err
81	}
82	httpRequest.Header.Set("Authorization", authorization)
83
84	client := &http.Client{}
85	httpResponse, err := client.Do(httpRequest)
86	if err != nil {
87		return nil, err
88	}
89	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
90	if err != nil {
91		return nil, err
92	}
93	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
94		// 2XX 成功，验证应答签名
95		err = wxpay_utility.ValidateResponse(
96			config.WechatPayPublicKeyId(),
97			config.WechatPayPublicKey(),
98			&httpResponse.Header,
99			respBody,
100		)
101		if err != nil {
102			return nil, err
103		}
104		response := &AccountBalance{}
105		if err := json.Unmarshal(respBody, response); err != nil {
106			return nil, err
107		}
108
109		return response, nil
110	} else {
111		return nil, wxpay_utility.NewApiException(
112			httpResponse.StatusCode,
113			httpResponse.Header,
114			respBody,
115		)
116	}
117}
118
119type QueryAccountBalanceRequest struct {
120	Mchid        *string       `json:"mchid,omitempty"`
121	BalAccountNo *string       `json:"bal_account_no,omitempty"`
122	CardNo       *string       `json:"card_no,omitempty"`
123	SgnNo        *string       `json:"sgn_no,omitempty"`
124	ReqScene     *RequestScene `json:"req_scene,omitempty"`
125}
126
127func (o *QueryAccountBalanceRequest) MarshalJSON() ([]byte, error) {
128	type Alias QueryAccountBalanceRequest
129	a := &struct {
130		Mchid        *string       `json:"mchid,omitempty"`
131		BalAccountNo *string       `json:"bal_account_no,omitempty"`
132		CardNo       *string       `json:"card_no,omitempty"`
133		SgnNo        *string       `json:"sgn_no,omitempty"`
134		ReqScene     *RequestScene `json:"req_scene,omitempty"`
135		*Alias
136	}{
137		// 序列化时移除非 Body 字段
138		Mchid:        nil,
139		BalAccountNo: nil,
140		CardNo:       nil,
141		SgnNo:        nil,
142		ReqScene:     nil,
143		Alias:        (*Alias)(o),
144	}
145	return json.Marshal(a)
146}
147
148type AccountBalance struct {
149	InTransitReductionExist *bool  `json:"in_transit_reduction_exist,omitempty"`
150	Balance                 *int64 `json:"balance,omitempty"`
151}
152
153type RequestScene string
154
155func (e RequestScene) Ptr() *RequestScene {
156	return &e
157}
158
159const (
160	REQUESTSCENE_SJT_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT     RequestScene = "SJT_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT"
161	REQUESTSCENE_SJT_MICRO_MERCHANT                             RequestScene = "SJT_MICRO_MERCHANT"
162	REQUESTSCENE_WX_SHOP_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT RequestScene = "WX_SHOP_CONVENIENT_SETTLEMENT_SERVICE_MERCHANT"
163)
164