上传电子发票文件

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/new-tax-control-fapiao/fapiao-applications/upload-fapiao-file \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: multipart/form-data" \
6  -F file=@"/path/to/file" \
7  -F meta="{
8    "sub_mchid" : "1900000109",
9    "file_type" : "PDF",
10    "digest_alogrithm" : "SM3",
11    "digest" : "addca90a6a290b9642dbaccffdf01e8c22aa348940b2e96754169ba08c19e5db"
12  }"

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 okhttp3.MultipartBody;
15import java.io.UncheckedIOException;
16import java.security.PrivateKey;
17import java.security.PublicKey;
18import java.util.ArrayList;
19import java.util.HashMap;
20import java.util.List;
21import java.util.Map;
22
23/**
24 * 上传电子发票文件
25 */
26public class UploadFapiaoFile {
27  private static String HOST = "https://api.mch.weixin.qq.com";
28  private static String METHOD = "POST";
29  private static String PATH = "/v3/new-tax-control-fapiao/fapiao-applications/upload-fapiao-file";
30
31  public static void main(String[] args) {
32    // TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/partner/4013080340
33    UploadFapiaoFile client = new UploadFapiaoFile(
34      "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
35      "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
36      "/path/to/apiclient_key.pem",     // 商户API证书私钥文件路径，本地文件路径
37      "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
38      "/path/to/wxp_pub.pem"           // 微信支付公钥文件路径，本地文件路径
39    );
40
41    UploadFapiaoFileRequest request = new UploadFapiaoFileRequest();
42    request.file = "file_bytes".getBytes();
43    request.meta = new FileMeta();
44request.meta.subMchid = "1900000109";
45request.meta.fileType = FapiaoFileType.PDF;
46request.meta.digestAlogrithm = DigestType.SM3;
47request.meta.digest = "addca90a6a290b9642dbaccffdf01e8c22aa348940b2e96754169ba08c19e5db";
48    try {
49      UploadFapiaoFileResponse response = client.run(request);
50        // TODO: 请求成功，继续业务逻辑
51        System.out.println(response);
52    } catch (WXPayUtility.ApiException e) {
53        // TODO: 请求失败，根据状态码执行不同的逻辑
54        e.printStackTrace();
55    }
56  }
57
58  public UploadFapiaoFileResponse run(UploadFapiaoFileRequest request) {
59    String uri = PATH;
60     // 构建multipart/form-data请求体
61     String metaJson = WXPayUtility.toJson(request.meta);
62     RequestBody metaPart = RequestBody.create(MediaType.parse("application/json"), metaJson);
63     //  todo: you_file_name替换为meta里面的文件名字段
64     String contentType = WXPayUtility.getContentTypeByFileName("your_file_name");
65     RequestBody filePart = RequestBody.create(MediaType.parse(contentType), request.file);
66     MultipartBody requestBody = new MultipartBody.Builder()
67             .setType(MultipartBody.FORM)
68             .addFormDataPart("meta", null, metaPart)
69             .addFormDataPart("file", "your_file_name", filePart)
70             .build();
71
72    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
73    reqBuilder.addHeader("Accept", "application/json");
74    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
75    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo, privateKey, METHOD, uri, metaJson));
76    reqBuilder.method(METHOD, requestBody);
77    Request httpRequest = reqBuilder.build();
78
79    // 发送HTTP请求
80    OkHttpClient client = new OkHttpClient.Builder().build();
81    try (Response httpResponse = client.newCall(httpRequest).execute()) {
82      String respBody = WXPayUtility.extractBody(httpResponse);
83      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
84        // 2XX 成功，验证应答签名
85        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
86            httpResponse.headers(), respBody);
87
88        // 从HTTP应答报文构建返回数据
89        return WXPayUtility.fromJson(respBody, UploadFapiaoFileResponse.class);
90      } else {
91        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
92      }
93    } catch (IOException e) {
94      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
95    }
96  }
97
98  private final String mchid;
99  private final String certificateSerialNo;
100  private final PrivateKey privateKey;
101  private final String wechatPayPublicKeyId;
102  private final PublicKey wechatPayPublicKey;
103
104  public UploadFapiaoFile(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
105    this.mchid = mchid;
106    this.certificateSerialNo = certificateSerialNo;
107    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
108    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
109    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
110  }
111
112  public static class UploadFapiaoFileRequest {
113    @SerializedName("file")
114    public byte[] file;
115  
116    @SerializedName("meta")
117    public FileMeta meta;
118  }
119  
120  public static class UploadFapiaoFileResponse {
121    @SerializedName("fapiao_media_id")
122    public String fapiaoMediaId;
123  }
124  
125  public static class FileMeta {
126    @SerializedName("sub_mchid")
127    public String subMchid;
128  
129    @SerializedName("file_type")
130    public FapiaoFileType fileType;
131  
132    @SerializedName("digest_alogrithm")
133    public DigestType digestAlogrithm;
134  
135    @SerializedName("digest")
136    public String digest;
137  }
138  
139  public enum FapiaoFileType {
140    @SerializedName("PDF")
141    PDF
142  }
143  
144  public enum DigestType {
145    @SerializedName("SM3")
146    SM3
147  }
148  
149}
150

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	"mime"
9	"mime/multipart"
10	"net/http"
11	"net/textproto"
12	"net/url"
13	"path/filepath"
14)
15
16func main() {
17	// TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/partner/4013080340
18	config, err := wxpay_utility.CreateMchConfig(
19		"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
20		"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
21		"/path/to/apiclient_key.pem", // 商户API证书私钥文件路径，本地文件路径
22		"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
23		"/path/to/wxp_pub.pem",       // 微信支付公钥文件路径，本地文件路径
24	)
25	if err != nil {
26		fmt.Println(err)
27		return
28	}
29
30	request := &UploadFapiaoFileRequest{
31		File: wxpay_utility.Bytes([]byte("file data")),
32		Meta: &FileMeta{
33			SubMchid:        wxpay_utility.String("1900000109"),
34			FileType:        FAPIAOFILETYPE_PDF.Ptr(),
35			DigestAlogrithm: DIGESTTYPE_SM3.Ptr(),
36			Digest:          wxpay_utility.String("addca90a6a290b9642dbaccffdf01e8c22aa348940b2e96754169ba08c19e5db"),
37		},
38	}
39
40	response, err := UploadFapiaoFile(config, request)
41	if err != nil {
42		fmt.Printf("请求失败: %+v\n", err)
43		// TODO: 请求失败，根据状态码执行不同的处理
44		return
45	}
46
47	// TODO: 请求成功，继续业务逻辑
48	fmt.Printf("请求成功: %+v\n", response)
49}
50
51func UploadFapiaoFile(config *wxpay_utility.MchConfig, request *UploadFapiaoFileRequest) (response *UploadFapiaoFileResponse, err error) {
52	const (
53		host   = "https://api.mch.weixin.qq.com"
54		method = "POST"
55		path   = "/v3/new-tax-control-fapiao/fapiao-applications/upload-fapiao-file"
56	)
57
58	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
59	if err != nil {
60		return nil, err
61	}
62	// 构造 multipart/form-data 请求体
63	body := &bytes.Buffer{}
64	writer := multipart.NewWriter(body)
65
66	// todo: your_file_name替换为meta里面的文件名字段
67	fileHeader := make(textproto.MIMEHeader)
68	fileHeader.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, "your_file_name"))
69	ext := filepath.Ext("your_file_name")
70	contentType := mime.TypeByExtension(ext)
71	if contentType == "" {
72		contentType = "application/octet-stream"
73	}
74	fileHeader.Set("Content-Type", contentType)
75	fileWriter, err := writer.CreatePart(fileHeader)
76	if err != nil {
77		return nil, err
78	}
79	_, err = fileWriter.Write(*request.File)
80	if err != nil {
81		return nil, err
82	}
83
84	// meta 字段
85	metaJSON, err := json.Marshal(request.Meta)
86	if err != nil {
87		return nil, err
88	}
89	metaWriter, err := writer.CreateFormField("meta")
90	if err != nil {
91		return nil, err
92	}
93	_, err = metaWriter.Write(metaJSON)
94	if err != nil {
95		return nil, err
96	}
97
98	err = writer.Close()
99	if err != nil {
100		return nil, err
101	}
102	httpRequest, err := http.NewRequest(method, reqUrl.String(), body)
103	if err != nil {
104		return nil, err
105	}
106	httpRequest.Header.Set("Accept", "application/json")
107	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
108	httpRequest.Header.Set("Content-Type", writer.FormDataContentType())
109	// 签名时使用 meta JSON
110	metaJson, err := json.Marshal(request.Meta)
111	if err != nil {
112		return nil, err
113	}
114	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), metaJson)
115	if err != nil {
116		return nil, err
117	}
118	httpRequest.Header.Set("Authorization", authorization)
119
120	client := &http.Client{}
121	httpResponse, err := client.Do(httpRequest)
122	if err != nil {
123		return nil, err
124	}
125	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
126	if err != nil {
127		return nil, err
128	}
129	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
130		// 2XX 成功，验证应答签名
131		err = wxpay_utility.ValidateResponse(
132			config.WechatPayPublicKeyId(),
133			config.WechatPayPublicKey(),
134			&httpResponse.Header,
135			respBody,
136		)
137		if err != nil {
138			return nil, err
139		}
140		response := &UploadFapiaoFileResponse{}
141		if err := json.Unmarshal(respBody, response); err != nil {
142			return nil, err
143		}
144
145		return response, nil
146	} else {
147		return nil, wxpay_utility.NewApiException(
148			httpResponse.StatusCode,
149			httpResponse.Header,
150			respBody,
151		)
152	}
153}
154
155type UploadFapiaoFileRequest struct {
156	File *[]byte   `json:"file,omitempty"`
157	Meta *FileMeta `json:"meta,omitempty"`
158}
159
160type UploadFapiaoFileResponse struct {
161	FapiaoMediaId *string `json:"fapiao_media_id,omitempty"`
162}
163
164type FileMeta struct {
165	SubMchid        *string         `json:"sub_mchid,omitempty"`
166	FileType        *FapiaoFileType `json:"file_type,omitempty"`
167	DigestAlogrithm *DigestType     `json:"digest_alogrithm,omitempty"`
168	Digest          *string         `json:"digest,omitempty"`
169}
170
171type FapiaoFileType string
172
173func (e FapiaoFileType) Ptr() *FapiaoFileType {
174	return &e
175}
176
177const (
178	FAPIAOFILETYPE_PDF FapiaoFileType = "PDF"
179)
180
181type DigestType string
182
183func (e DigestType) Ptr() *DigestType {
184	return &e
185}
186
187const (
188	DIGESTTYPE_SM3 DigestType = "SM3"
189)
190