撤销申请单

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/apply4subject/applyment/1900013511_10000/cancel?applyment_id=20000011111 \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" 
5

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 * 撤销申请单
24 */
25public class CancelApplyment {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/v3/apply4subject/applyment/{business_code}/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    CancelApplyment client = new CancelApplyment(
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    CancelApplymentRequest request = new CancelApplymentRequest();
41    request.businessCode = "1900013511_10000";
42    request.applymentId = 20000011111L;
43    try {
44      client.run(request);
45    } catch (WXPayUtility.ApiException e) {
46        // TODO: 请求失败，根据状态码执行不同的逻辑
47        e.printStackTrace();
48    }
49  }
50
51  public void run(CancelApplymentRequest request) {
52    String uri = PATH;
53    uri = uri.replace("{business_code}", WXPayUtility.urlEncode(request.businessCode));
54    Map<String, Object> args = new HashMap<>();
55    args.put("applyment_id", request.applymentId);
56    String queryString = WXPayUtility.urlEncode(args);
57    if (!queryString.isEmpty()) {
58        uri = uri + "?" + queryString;
59    }
60
61    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
62    reqBuilder.addHeader("Accept", "application/json");
63    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
64    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo, privateKey, METHOD, uri, null));
65    reqBuilder.addHeader("Content-Type", "application/json");
66    RequestBody emptyBody = RequestBody.create(null, "");
67    reqBuilder.method(METHOD, emptyBody);
68    Request httpRequest = reqBuilder.build();
69
70    // 发送HTTP请求
71    OkHttpClient client = new OkHttpClient.Builder().build();
72    try (Response httpResponse = client.newCall(httpRequest).execute()) {
73      String respBody = WXPayUtility.extractBody(httpResponse);
74      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
75        // 2XX 成功，验证应答签名
76        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
77            httpResponse.headers(), respBody);
78
79        return;
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 CancelApplyment(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 CancelApplymentRequest {
103    @SerializedName("applyment_id")
104    @Expose(serialize = false)
105    public Long applymentId;
106  
107    @SerializedName("business_code")
108    @Expose(serialize = false)
109    public String businessCode;
110  }
111  
112}
113

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)
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 := &CancelApplymentRequest{
27		ApplymentId:  wxpay_utility.Int64(20000011111),
28		BusinessCode: wxpay_utility.String("1900013511_10000"),
29	}
30
31	err = CancelApplyment(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.Println("请求成功")
40}
41
42func CancelApplyment(config *wxpay_utility.MchConfig, request *CancelApplymentRequest) (err error) {
43	const (
44		host   = "https://api.mch.weixin.qq.com"
45		method = "POST"
46		path   = "/v3/apply4subject/applyment/{business_code}/cancel"
47	)
48
49	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
50	if err != nil {
51		return err
52	}
53	reqUrl.Path = strings.Replace(reqUrl.Path, "{business_code}", url.PathEscape(*request.BusinessCode), -1)
54	query := reqUrl.Query()
55	if request.ApplymentId != nil {
56		query.Add("applyment_id", fmt.Sprintf("%v", *request.ApplymentId))
57	}
58	reqUrl.RawQuery = query.Encode()
59	httpRequest, err := http.NewRequest(method, reqUrl.String(), nil)
60	if err != nil {
61		return 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(), nil)
67	if err != nil {
68		return 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 err
76	}
77	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
78	if err != nil {
79		return 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 err
91		}
92		return nil
93	} else {
94		return wxpay_utility.NewApiException(
95			httpResponse.StatusCode,
96			httpResponse.Header,
97			respBody,
98		)
99	}
100}
101
102type CancelApplymentRequest struct {
103	ApplymentId  *int64  `json:"applyment_id,omitempty"`
104	BusinessCode *string `json:"business_code,omitempty"`
105}
106
107func (o *CancelApplymentRequest) MarshalJSON() ([]byte, error) {
108	type Alias CancelApplymentRequest
109	a := &struct {
110		ApplymentId  *int64  `json:"applyment_id,omitempty"`
111		BusinessCode *string `json:"business_code,omitempty"`
112		*Alias
113	}{
114		// 序列化时移除非 Body 字段
115		ApplymentId:  nil,
116		BusinessCode: nil,
117		Alias:        (*Alias)(o),
118	}
119	return json.Marshal(a)
120}
121