发起转账

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 * 发起转账
24 */
25public class TransferToUser {
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/transfer-bills";
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    TransferToUser client = new TransferToUser(
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    TransferToUserRequest request = new TransferToUserRequest();
41    request.subMchid = "1900001121";
42    request.appid = "wxf636efh567hg4356";
43    request.outBillNo = "plfk2020042013";
44    request.transferSceneId = "1000";
45    request.openid = "o-MYE42l80oelYMDE34nYD456Xoy";
46    request.userName = client.encrypt("user_name");
47    request.transferAmount = 400000L;
48    request.transferRemark = "2020年4月报销";
49    request.notifyUrl = "https://www.weixin.qq.com/wxpay/pay.php";
50    request.userRecvPerception = "现金奖励";
51    request.transferSceneReportInfos = new ArrayList<>();
52    {
53      TransferSceneReportInfo transferSceneReportInfosItem = new TransferSceneReportInfo();
54      transferSceneReportInfosItem.infoType = "活动名称";
55      transferSceneReportInfosItem.infoContent = "新会员有礼";
56      request.transferSceneReportInfos.add(transferSceneReportInfosItem);
57    };
58    try {
59      TransferToUserResponse response = client.run(request);
60
61      // TODO: 请求成功，继续业务逻辑
62      System.out.println(response);
63    } catch (WXPayUtility.ApiException e) {
64      // TODO: 请求失败，根据状态码执行不同的逻辑
65      e.printStackTrace();
66    }
67  }
68
69  public TransferToUserResponse run(TransferToUserRequest request) {
70    String uri = PATH;
71    String reqBody = WXPayUtility.toJson(request);
72
73    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
74    reqBuilder.addHeader("Accept", "application/json");
75    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
76    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody));
77    reqBuilder.addHeader("Content-Type", "application/json");
78    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
79    reqBuilder.method(METHOD, requestBody);
80    Request httpRequest = reqBuilder.build();
81
82    // 发送HTTP请求
83    OkHttpClient client = new OkHttpClient.Builder().build();
84    try (Response httpResponse = client.newCall(httpRequest).execute()) {
85      String respBody = WXPayUtility.extractBody(httpResponse);
86      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
87        // 2XX 成功，验证应答签名
88        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
89            httpResponse.headers(), respBody);
90
91        // 从HTTP应答报文构建返回数据
92        return WXPayUtility.fromJson(respBody, TransferToUserResponse.class);
93      } else {
94        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
95      }
96    } catch (IOException e) {
97      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
98    }
99  }
100
101  private final String mchid;
102  private final String certificateSerialNo;
103  private final PrivateKey privateKey;
104  private final String wechatPayPublicKeyId;
105  private final PublicKey wechatPayPublicKey;
106
107  public TransferToUser(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
108    this.mchid = mchid;
109    this.certificateSerialNo = certificateSerialNo;
110    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
111    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
112    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
113  }
114
115  public String encrypt(String plainText) {
116    return WXPayUtility.encrypt(this.wechatPayPublicKey, plainText);
117  }
118
119  public static class TransferToUserRequest {
120    @SerializedName("sub_mchid")
121    public String subMchid;
122  
123    @SerializedName("appid")
124    public String appid;
125  
126    @SerializedName("out_bill_no")
127    public String outBillNo;
128  
129    @SerializedName("transfer_scene_id")
130    public String transferSceneId;
131  
132    @SerializedName("openid")
133    public String openid;
134  
135    @SerializedName("user_name")
136    public String userName;
137  
138    @SerializedName("transfer_amount")
139    public Long transferAmount;
140  
141    @SerializedName("transfer_remark")
142    public String transferRemark;
143  
144    @SerializedName("notify_url")
145    public String notifyUrl;
146  
147    @SerializedName("user_recv_perception")
148    public String userRecvPerception;
149  
150    @SerializedName("transfer_scene_report_infos")
151    public List<TransferSceneReportInfo> transferSceneReportInfos;
152  }
153  
154  public static class TransferToUserResponse {
155    @SerializedName("sub_mchid")
156    public String subMchid;
157  
158    @SerializedName("out_bill_no")
159    public String outBillNo;
160  
161    @SerializedName("transfer_bill_no")
162    public String transferBillNo;
163  
164    @SerializedName("create_time")
165    public String createTime;
166  
167    @SerializedName("package_info")
168    public String packageInfo;
169  }
170  
171  public static class TransferSceneReportInfo {
172    @SerializedName("info_type")
173    public String infoType;
174  
175    @SerializedName("info_content")
176    public String infoContent;
177  }
178  
179}
180

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)
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 := &TransferToUserRequest{
27		SubMchid:           wxpay_utility.String("1900001121"),
28		Appid:              wxpay_utility.String("wxf636efh567hg4356"),
29		OutBillNo:          wxpay_utility.String("plfk2020042013"),
30		TransferSceneId:    wxpay_utility.String("1000"),
31		Openid:             wxpay_utility.String("o-MYE42l80oelYMDE34nYD456Xoy"),
32		UserName:           wxpay_utility.String("757b340b45ebef5467rter35gf464344v3542sdf4t6re4tb4f54ty45t4yyry45"), /*请传入 wxpay_utility.EncryptOAEPWithPublicKey 加密结果*/
33		TransferAmount:     wxpay_utility.Int64(400000),
34		TransferRemark:     wxpay_utility.String("2020年4月报销"),
35		NotifyUrl:          wxpay_utility.String("https://www.weixin.qq.com/wxpay/pay.php"),
36		UserRecvPerception: wxpay_utility.String("现金奖励"),
37		TransferSceneReportInfos: []TransferSceneReportInfo{TransferSceneReportInfo{
38			InfoType:    wxpay_utility.String("活动名称"),
39			InfoContent: wxpay_utility.String("新会员有礼"),
40		}},
41	}
42
43	response, err := TransferToUser(config, request)
44	if err != nil {
45		fmt.Printf("请求失败: %+v\n", err)
46		// TODO: 请求失败，根据状态码执行不同的处理
47		return
48	}
49
50	// TODO: 请求成功，继续业务逻辑
51	fmt.Printf("请求成功: %+v\n", response)
52}
53
54func TransferToUser(config *wxpay_utility.MchConfig, request *TransferToUserRequest) (response *TransferToUserResponse, err error) {
55	const (
56		host   = "https://api.mch.weixin.qq.com"
57		method = "POST"
58		path   = "/v3/fund-app/mch-transfer/partner/transfer-bills"
59	)
60
61	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
62	if err != nil {
63		return nil, err
64	}
65	reqBody, err := json.Marshal(request)
66	if err != nil {
67		return nil, err
68	}
69	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
70	if err != nil {
71		return nil, err
72	}
73	httpRequest.Header.Set("Accept", "application/json")
74	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
75	httpRequest.Header.Set("Content-Type", "application/json")
76	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
77	if err != nil {
78		return nil, err
79	}
80	httpRequest.Header.Set("Authorization", authorization)
81
82	client := &http.Client{}
83	httpResponse, err := client.Do(httpRequest)
84	if err != nil {
85		return nil, err
86	}
87
88	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
89	if err != nil {
90		return nil, err
91	}
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
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 TransferToUserRequest struct {
120	SubMchid                 *string                   `json:"sub_mchid,omitempty"`
121	Appid                    *string                   `json:"appid,omitempty"`
122	OutBillNo                *string                   `json:"out_bill_no,omitempty"`
123	TransferSceneId          *string                   `json:"transfer_scene_id,omitempty"`
124	Openid                   *string                   `json:"openid,omitempty"`
125	UserName                 *string                   `json:"user_name,omitempty"`
126	TransferAmount           *int64                    `json:"transfer_amount,omitempty"`
127	TransferRemark           *string                   `json:"transfer_remark,omitempty"`
128	NotifyUrl                *string                   `json:"notify_url,omitempty"`
129	UserRecvPerception       *string                   `json:"user_recv_perception,omitempty"`
130	TransferSceneReportInfos []TransferSceneReportInfo `json:"transfer_scene_report_infos,omitempty"`
131}
132
133type TransferToUserResponse struct {
134	SubMchid       *string `json:"sub_mchid,omitempty"`
135	OutBillNo      *string `json:"out_bill_no,omitempty"`
136	TransferBillNo *string `json:"transfer_bill_no,omitempty"`
137	CreateTime     *string `json:"create_time,omitempty"`
138	PackageInfo    *string `json:"package_info,omitempty"`
139}
140
141type TransferSceneReportInfo struct {
142	InfoType    *string `json:"info_type,omitempty"`
143	InfoContent *string `json:"info_content,omitempty"`
144}
145

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/fund-app/mch-transfer/partner/transfer-bills \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Wechatpay-Serial: 5157F09EFDC096DE15EBE81A47057A7232F1B8E1"  \
6  -H "Content-Type: application/json" \
7  -d '{
8    "sub_mchid" : "1900001121",
9    "appid" : "wxf636efh567hg4356",
10    "out_bill_no" : "plfk2020042013",
11    "transfer_scene_id" : "1000",
12    "openid" : "o-MYE42l80oelYMDE34nYD456Xoy",
13    "user_name" : "757b340b45ebef5467rter35gf464344v3542sdf4t6re4tb4f54ty45t4yyry45",
14    "transfer_amount" : 400000,
15    "transfer_remark" : "2020年4月报销",
16    "notify_url" : "https://www.weixin.qq.com/wxpay/pay.php",
17    "user_recv_perception" : "现金奖励",
18    "transfer_scene_report_infos" : [
19      {
20        "info_type" : "活动名称",
21        "info_content" : "新会员有礼"
22      }
23    ]
24  }'
25