查询还款单

1curl -X GET \
2  https://api.mch.weixin.qq.com/v3/credit-repayment/partner/deduct-orders/DeductOrder123456 \
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 * 查询还款单
24 */
25public class PartnerQueryDeductOrder {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "GET";
28  private static String PATH = "/v3/credit-repayment/partner/deduct-orders/{out_trade_no}";
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    PartnerQueryDeductOrder client = new PartnerQueryDeductOrder(
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    PartnerQueryDeductOrderRequest request = new PartnerQueryDeductOrderRequest();
41    request.outTradeNo = "DeductOrder123456";
42    try {
43      DeductOrder response = client.run(request);
44        // TODO: 请求成功，继续业务逻辑
45        System.out.println(response);
46    } catch (WXPayUtility.ApiException e) {
47        // TODO: 请求失败，根据状态码执行不同的逻辑
48        e.printStackTrace();
49    }
50  }
51
52  public DeductOrder run(PartnerQueryDeductOrderRequest request) {
53    String uri = PATH;
54    uri = uri.replace("{out_trade_no}", WXPayUtility.urlEncode(request.outTradeNo));
55
56    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
57    reqBuilder.addHeader("Accept", "application/json");
58    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
59    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo, privateKey, METHOD, uri, null));
60    reqBuilder.method(METHOD, null);
61    Request httpRequest = reqBuilder.build();
62
63    // 发送HTTP请求
64    OkHttpClient client = new OkHttpClient.Builder().build();
65    try (Response httpResponse = client.newCall(httpRequest).execute()) {
66      String respBody = WXPayUtility.extractBody(httpResponse);
67      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
68        // 2XX 成功，验证应答签名
69        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
70            httpResponse.headers(), respBody);
71
72        // 从HTTP应答报文构建返回数据
73        return WXPayUtility.fromJson(respBody, DeductOrder.class);
74      } else {
75        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
76      }
77    } catch (IOException e) {
78      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
79    }
80  }
81
82  private final String mchid;
83  private final String certificateSerialNo;
84  private final PrivateKey privateKey;
85  private final String wechatPayPublicKeyId;
86  private final PublicKey wechatPayPublicKey;
87
88  public PartnerQueryDeductOrder(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
89    this.mchid = mchid;
90    this.certificateSerialNo = certificateSerialNo;
91    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
92    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
93    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
94  }
95
96  public static class PartnerQueryDeductOrderRequest {
97    @SerializedName("out_trade_no")
98    @Expose(serialize = false)
99    public String outTradeNo;
100  }
101  
102  public static class DeductOrder {
103    @SerializedName("out_trade_no")
104    public String outTradeNo;
105  
106    @SerializedName("out_record_id")
107    public String outRecordId;
108  
109    @SerializedName("appid")
110    public String appid;
111  
112    @SerializedName("sub_appid")
113    public String subAppid;
114  
115    @SerializedName("openid")
116    public String openid;
117  
118    @SerializedName("contract_id")
119    public String contractId;
120  
121    @SerializedName("order_state")
122    public DeductOrderState orderState;
123  
124    @SerializedName("deduct_amount")
125    public String deductAmount;
126  
127    @SerializedName("pay_success_amount")
128    public String paySuccessAmount;
129  
130    @SerializedName("description")
131    public String description;
132  
133    @SerializedName("attach")
134    public String attach;
135  
136    @SerializedName("transaction_id")
137    public String transactionId;
138  }
139  
140  public enum DeductOrderState {
141    @SerializedName("DEDUCT_ORDER_STATE_PENDING")
142    DEDUCT_ORDER_STATE_PENDING,
143    @SerializedName("DEDUCT_ORDER_STATE_NOT_PAY")
144    DEDUCT_ORDER_STATE_NOT_PAY,
145    @SerializedName("DEDUCT_ORDER_STATE_PAY_SUCCESS")
146    DEDUCT_ORDER_STATE_PAY_SUCCESS,
147    @SerializedName("DEDUCT_ORDER_STATE_PAY_FAIL")
148    DEDUCT_ORDER_STATE_PAY_FAIL
149  }
150  
151}
152

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 := &PartnerQueryDeductOrderRequest{
27		OutTradeNo: wxpay_utility.String("DeductOrder123456"),
28	}
29
30	response, err := PartnerQueryDeductOrder(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 PartnerQueryDeductOrder(config *wxpay_utility.MchConfig, request *PartnerQueryDeductOrderRequest) (response *DeductOrder, err error) {
42	const (
43		host   = "https://api.mch.weixin.qq.com"
44		method = "GET"
45		path   = "/v3/credit-repayment/partner/deduct-orders/{out_trade_no}"
46	)
47
48	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
49	if err != nil {
50		return nil, err
51	}
52	reqUrl.Path = strings.Replace(reqUrl.Path, "{out_trade_no}", url.PathEscape(*request.OutTradeNo), -1)
53	httpRequest, err := http.NewRequest(method, reqUrl.String(), nil)
54	if err != nil {
55		return nil, err
56	}
57	httpRequest.Header.Set("Accept", "application/json")
58	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
59	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), nil)
60	if err != nil {
61		return nil, err
62	}
63	httpRequest.Header.Set("Authorization", authorization)
64
65	client := &http.Client{}
66	httpResponse, err := client.Do(httpRequest)
67	if err != nil {
68		return nil, err
69	}
70	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
71	if err != nil {
72		return nil, err
73	}
74	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
75		// 2XX 成功，验证应答签名
76		err = wxpay_utility.ValidateResponse(
77			config.WechatPayPublicKeyId(),
78			config.WechatPayPublicKey(),
79			&httpResponse.Header,
80			respBody,
81		)
82		if err != nil {
83			return nil, err
84		}
85		response := &DeductOrder{}
86		if err := json.Unmarshal(respBody, response); err != nil {
87			return nil, err
88		}
89
90		return response, nil
91	} else {
92		return nil, wxpay_utility.NewApiException(
93			httpResponse.StatusCode,
94			httpResponse.Header,
95			respBody,
96		)
97	}
98}
99
100type PartnerQueryDeductOrderRequest struct {
101	OutTradeNo *string `json:"out_trade_no,omitempty"`
102}
103
104func (o *PartnerQueryDeductOrderRequest) MarshalJSON() ([]byte, error) {
105	type Alias PartnerQueryDeductOrderRequest
106	a := &struct {
107		OutTradeNo *string `json:"out_trade_no,omitempty"`
108		*Alias
109	}{
110		// 序列化时移除非 Body 字段
111		OutTradeNo: nil,
112		Alias:      (*Alias)(o),
113	}
114	return json.Marshal(a)
115}
116
117type DeductOrder struct {
118	OutTradeNo       *string           `json:"out_trade_no,omitempty"`
119	OutRecordId      *string           `json:"out_record_id,omitempty"`
120	Appid            *string           `json:"appid,omitempty"`
121	SubAppid         *string           `json:"sub_appid,omitempty"`
122	Openid           *string           `json:"openid,omitempty"`
123	ContractId       *string           `json:"contract_id,omitempty"`
124	OrderState       *DeductOrderState `json:"order_state,omitempty"`
125	DeductAmount     *string           `json:"deduct_amount,omitempty"`
126	PaySuccessAmount *string           `json:"pay_success_amount,omitempty"`
127	Description      *string           `json:"description,omitempty"`
128	Attach           *string           `json:"attach,omitempty"`
129	TransactionId    *string           `json:"transaction_id,omitempty"`
130}
131
132type DeductOrderState string
133
134func (e DeductOrderState) Ptr() *DeductOrderState {
135	return &e
136}
137
138const (
139	DEDUCTORDERSTATE_DEDUCT_ORDER_STATE_PENDING     DeductOrderState = "DEDUCT_ORDER_STATE_PENDING"
140	DEDUCTORDERSTATE_DEDUCT_ORDER_STATE_NOT_PAY     DeductOrderState = "DEDUCT_ORDER_STATE_NOT_PAY"
141	DEDUCTORDERSTATE_DEDUCT_ORDER_STATE_PAY_SUCCESS DeductOrderState = "DEDUCT_ORDER_STATE_PAY_SUCCESS"
142	DEDUCTORDERSTATE_DEDUCT_ORDER_STATE_PAY_FAIL    DeductOrderState = "DEDUCT_ORDER_STATE_PAY_FAIL"
143)
144