微信单号申请电子回单

1package com.java.demo;
2
3import com.google.gson.annotations.Expose;
4import com.google.gson.annotations.SerializedName;
5import com.java.utils.WXPayUtility; // 引用微信支付工具库 参考:https://pay.weixin.qq.com/doc/v3/merchant/4014931831
6import java.io.IOException;
7import java.io.UncheckedIOException;
8import java.security.PrivateKey;
9import java.security.PublicKey;
10import java.util.ArrayList;
11import java.util.HashMap;
12import java.util.List;
13import java.util.Map;
14import okhttp3.MediaType;
15import okhttp3.OkHttpClient;
16import okhttp3.Request;
17import okhttp3.RequestBody;
18import okhttp3.Response;
19
20/**
21 * 微信单号申请电子回单
22 */
23public class AcceptElecsignByNo {
24  private static String HOST = "https://api.mch.weixin.qq.com";
25  private static String METHOD = "POST";
26  private static String PATH = "/v3/fund-app/mch-transfer/elecsign/transfer-bill-no";
27
28  public static void main(String[] args) {
29    // TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/merchant/4013070756
30    AcceptElecsignByNo client = new AcceptElecsignByNo(
31        "填入 商户号",                  // 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
32        "填入 商户API证书序列号",       // 商户API证书序列号，如何获取请参考https://pay.weixin.qq.com/doc/v3/merchant/4013053053
33        "填入 商户API证书私钥文件路径", // 商户API证书私钥文件路径，本地文件路径
34        "填入 微信支付公钥ID",          // 微信支付公钥ID，如何获取请参考https://pay.weixin.qq.com/doc/v3/merchant/4013038816
35        "填入 微信支付公钥文件路径"     // 微信支付公钥文件路径，本地文件路径
36    );
37
38    AcceptElecsignByNoRequest request = new AcceptElecsignByNoRequest();
39    request.transferBillNo = "1330000071100999991182020050700019480001";
40    try {
41      AcceptElecsignResponse response = client.run(request);
42
43      // TODO: 请求成功，继续业务逻辑
44      System.out.println(response);
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 AcceptElecsignResponse run(AcceptElecsignByNoRequest request) {
52    String uri = PATH;
53    String reqBody = WXPayUtility.toJson(request);
54
55    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
56    reqBuilder.addHeader("Accept", "application/json");
57    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
58    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo, privateKey, METHOD, uri, reqBody));
59    reqBuilder.addHeader("Content-Type", "application/json");
60    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
61    reqBuilder.method(METHOD, requestBody);
62    Request httpRequest = reqBuilder.build();
63
64    // 发送HTTP请求
65    OkHttpClient client = new OkHttpClient.Builder().build();
66    try (Response httpResponse = client.newCall(httpRequest).execute()) {
67      String respBody = WXPayUtility.extractBody(httpResponse);
68      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
69        // 2XX 成功，验证应答签名
70        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
71                                      httpResponse.headers(), respBody);
72
73        // 从HTTP应答报文构建返回数据
74        return WXPayUtility.fromJson(respBody, AcceptElecsignResponse.class);
75      } else {
76        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
77      }
78    } catch (IOException e) {
79      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
80    }
81  }
82
83  private final String mchid;
84  private final String certificateSerialNo;
85  private final PrivateKey privateKey;
86  private final String wechatPayPublicKeyId;
87  private final PublicKey wechatPayPublicKey;
88
89  public AcceptElecsignByNo(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
90    this.mchid = mchid;
91    this.certificateSerialNo = certificateSerialNo;
92    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
93    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
94    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
95  }
96
97  public static class AcceptElecsignByNoRequest {
98    @SerializedName("transfer_bill_no")
99    public String transferBillNo;
100  }
101
102  public static class AcceptElecsignResponse {
103    @SerializedName("state")
104    public ElecsignStatus state;
105
106    @SerializedName("create_time")
107    public String createTime;
108  }
109
110  public enum ElecsignStatus {
111    @SerializedName("GENERATING")
112    GENERATING,
113    @SerializedName("FINISHED")
114    FINISHED,
115    @SerializedName("FAILED")
116    FAILED
117  }
118}

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/merchant/4015119334
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/merchant/4013070756
14	config, err := wxpay_utility.CreateMchConfig(
15		"填入 商户号",           // 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
16		"填入 商户API证书序列号",    // 商户API证书序列号，如何获取请参考https://pay.weixin.qq.com/doc/v3/merchant/4013053053
17		"填入 商户API证书私钥文件路径", // 商户API证书私钥文件路径，本地文件路径
18		"填入 微信支付公钥ID",      // 微信支付公钥ID，如何获取请参考https://pay.weixin.qq.com/doc/v3/merchant/4013038816
19		"填入 微信支付公钥文件路径",    // 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 := &AcceptElecsignByNoRequest{
27		TransferBillNo: wxpay_utility.String("1330000071100999991182020050700019480001"),
28	}
29
30	response, err := AcceptElecsignByNo(config, request)
31	if err != nil {
32		fmt.Printf("请求失败: %+v\n", err)
33		// TODO: 请求失败，根据状态码执行不同的处理
34		return
35	}
36
37	// TODO: 请求成功，继续业务逻辑
38	fmt.Printf("请求成功: %+v\n", response)
39}
40
41func AcceptElecsignByNo(config *wxpay_utility.MchConfig, request *AcceptElecsignByNoRequest) (response *AcceptElecsignResponse, err error) {
42	const (
43		host   = "https://api.mch.weixin.qq.com"
44		method = "POST"
45		path   = "/v3/fund-app/mch-transfer/elecsign/transfer-bill-no"
46	)
47
48	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
49	if err != nil {
50		return nil, err
51	}
52	reqBody, err := json.Marshal(request)
53	if err != nil {
54		return nil, err
55	}
56	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
57	if err != nil {
58		return nil, err
59	}
60	httpRequest.Header.Set("Accept", "application/json")
61	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
62	httpRequest.Header.Set("Content-Type", "application/json")
63	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.Path, reqBody)
64	if err != nil {
65		return nil, err
66	}
67	httpRequest.Header.Set("Authorization", authorization)
68
69	client := &http.Client{}
70	httpResponse, err := client.Do(httpRequest)
71	if err != nil {
72		return nil, err
73	}
74
75	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
76	if err != nil {
77		return nil, err
78	}
79
80	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
81		// 2XX 成功，验证应答签名
82		err = wxpay_utility.ValidateResponse(
83			config.WechatPayPublicKeyId(),
84			config.WechatPayPublicKey(),
85			&httpResponse.Header,
86			respBody,
87		)
88		if err != nil {
89			return nil, err
90		}
91
92		if err := json.Unmarshal(respBody, response); err != nil {
93			return nil, err
94		}
95
96		return response, nil
97	} else {
98		return nil, &wxpay_utility.ApiException{
99			StatusCode: httpResponse.StatusCode,
100			Header:     httpResponse.Header,
101			Body:       respBody,
102		}
103	}
104}
105
106type AcceptElecsignByNoRequest struct {
107	TransferBillNo *string `json:"transfer_bill_no,omitempty"`
108}
109
110type AcceptElecsignResponse struct {
111	State      *ElecsignStatus `json:"state,omitempty"`
112	CreateTime *string         `json:"create_time,omitempty"`
113}
114
115type ElecsignStatus string
116
117func (e ElecsignStatus) Ptr() *ElecsignStatus {
118	return &e
119}
120
121const (
122	ELECSIGNSTATUS_GENERATING ElecsignStatus = "GENERATING"
123	ELECSIGNSTATUS_FINISHED   ElecsignStatus = "FINISHED"
124	ELECSIGNSTATUS_FAILED     ElecsignStatus = "FAILED"
125)

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/fund-app/mch-transfer/elecsign/transfer-bill-no \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: application/json" \
6  -d '{
7    "transfer_bill_no" : "1330000071100999991182020050700019480001"
8  }'
9