查询图片生成任务执行结果

1curl -X GET \
2  https://api.mch.weixin.qq.com/v3/marketing/partner/product-coupon/image-generation-tasks/image_generation_task_1?brand_id=120344&image_generation_type=COMBINE_IMAGE \
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 * 查询图片生成任务执行结果
24 */
25public class GetImageGenerationTask {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "GET";
28  private static String PATH = "/v3/marketing/partner/product-coupon/image-generation-tasks/{task_id}";
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    GetImageGenerationTask client = new GetImageGenerationTask(
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    GetImageGenerationTaskRequest request = new GetImageGenerationTaskRequest();
41    request.taskId = "image_generation_task_1";
42    request.brandId = "120344";
43    request.imageGenerationType = ImageGenerationType.COMBINE_IMAGE;
44    try {
45      ImageGenerationTask response = client.run(request);
46        // TODO: 请求成功，继续业务逻辑
47        System.out.println(response);
48    } catch (WXPayUtility.ApiException e) {
49        // TODO: 请求失败，根据状态码执行不同的逻辑
50        e.printStackTrace();
51    }
52  }
53
54  public ImageGenerationTask run(GetImageGenerationTaskRequest request) {
55    String uri = PATH;
56    uri = uri.replace("{task_id}", WXPayUtility.urlEncode(request.taskId));
57    Map<String, Object> args = new HashMap<>();
58    args.put("brand_id", request.brandId);
59    args.put("image_generation_type", request.imageGenerationType);
60    String queryString = WXPayUtility.urlEncode(args);
61    if (!queryString.isEmpty()) {
62        uri = uri + "?" + queryString;
63    }
64
65    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
66    reqBuilder.addHeader("Accept", "application/json");
67    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
68    reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo, privateKey, METHOD, uri, null));
69    reqBuilder.method(METHOD, null);
70    Request httpRequest = reqBuilder.build();
71
72    // 发送HTTP请求
73    OkHttpClient client = new OkHttpClient.Builder().build();
74    try (Response httpResponse = client.newCall(httpRequest).execute()) {
75      String respBody = WXPayUtility.extractBody(httpResponse);
76      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
77        // 2XX 成功，验证应答签名
78        WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
79            httpResponse.headers(), respBody);
80
81        // 从HTTP应答报文构建返回数据
82        return WXPayUtility.fromJson(respBody, ImageGenerationTask.class);
83      } else {
84        throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
85      }
86    } catch (IOException e) {
87      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
88    }
89  }
90
91  private final String mchid;
92  private final String certificateSerialNo;
93  private final PrivateKey privateKey;
94  private final String wechatPayPublicKeyId;
95  private final PublicKey wechatPayPublicKey;
96
97  public GetImageGenerationTask(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
98    this.mchid = mchid;
99    this.certificateSerialNo = certificateSerialNo;
100    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
101    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
102    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
103  }
104
105  public static class GetImageGenerationTaskRequest {
106    @SerializedName("brand_id")
107    @Expose(serialize = false)
108    public String brandId;
109  
110    @SerializedName("task_id")
111    @Expose(serialize = false)
112    public String taskId;
113  
114    @SerializedName("image_generation_type")
115    @Expose(serialize = false)
116    public ImageGenerationType imageGenerationType;
117  }
118  
119  public static class ImageGenerationTask {
120    @SerializedName("brand_id")
121    public String brandId;
122  
123    @SerializedName("task_id")
124    public String taskId;
125  
126    @SerializedName("image_generation_type")
127    public ImageGenerationType imageGenerationType;
128  
129    @SerializedName("task_state")
130    public TaskState taskState;
131  
132    @SerializedName("combine_image_result")
133    public CombineImageResult combineImageResult;
134  
135    @SerializedName("cut_out_result")
136    public CutOutResult cutOutResult;
137  }
138  
139  public enum ImageGenerationType {
140    @SerializedName("COMBINE_IMAGE")
141    COMBINE_IMAGE,
142    @SerializedName("CUT_OUT")
143    CUT_OUT
144  }
145  
146  public enum TaskState {
147    @SerializedName("PROCESSING")
148    PROCESSING,
149    @SerializedName("FAIL")
150    FAIL,
151    @SerializedName("SUCCESS")
152    SUCCESS
153  }
154  
155  public static class CombineImageResult {
156    @SerializedName("image_url")
157    public String imageUrl;
158  }
159  
160  public static class CutOutResult {
161    @SerializedName("image_url")
162    public String imageUrl;
163  }
164  
165}
166

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 := &GetImageGenerationTaskRequest{
27		BrandId:             wxpay_utility.String("120344"),
28		TaskId:              wxpay_utility.String("image_generation_task_1"),
29		ImageGenerationType: IMAGEGENERATIONTYPE_COMBINE_IMAGE.Ptr(),
30	}
31
32	response, err := GetImageGenerationTask(config, request)
33	if err != nil {
34		fmt.Printf("请求失败: %+v\n", err)
35		// TODO: 请求失败，根据状态码执行不同的处理
36		return
37	}
38
39	// TODO: 请求成功，继续业务逻辑
40	fmt.Printf("请求成功: %+v\n", response)
41}
42
43func GetImageGenerationTask(config *wxpay_utility.MchConfig, request *GetImageGenerationTaskRequest) (response *ImageGenerationTask, err error) {
44	const (
45		host   = "https://api.mch.weixin.qq.com"
46		method = "GET"
47		path   = "/v3/marketing/partner/product-coupon/image-generation-tasks/{task_id}"
48	)
49
50	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
51	if err != nil {
52		return nil, err
53	}
54	reqUrl.Path = strings.Replace(reqUrl.Path, "{task_id}", url.PathEscape(*request.TaskId), -1)
55	query := reqUrl.Query()
56	if request.BrandId != nil {
57		query.Add("brand_id", *request.BrandId)
58	}
59	if request.ImageGenerationType != nil {
60		query.Add("image_generation_type", fmt.Sprintf("%v", *request.ImageGenerationType))
61	}
62	reqUrl.RawQuery = query.Encode()
63	httpRequest, err := http.NewRequest(method, reqUrl.String(), nil)
64	if err != nil {
65		return nil, err
66	}
67	httpRequest.Header.Set("Accept", "application/json")
68	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
69	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), nil)
70	if err != nil {
71		return nil, err
72	}
73	httpRequest.Header.Set("Authorization", authorization)
74
75	client := &http.Client{}
76	httpResponse, err := client.Do(httpRequest)
77	if err != nil {
78		return nil, err
79	}
80	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
81	if err != nil {
82		return nil, err
83	}
84	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
85		// 2XX 成功，验证应答签名
86		err = wxpay_utility.ValidateResponse(
87			config.WechatPayPublicKeyId(),
88			config.WechatPayPublicKey(),
89			&httpResponse.Header,
90			respBody,
91		)
92		if err != nil {
93			return nil, err
94		}
95		response := &ImageGenerationTask{}
96		if err := json.Unmarshal(respBody, response); err != nil {
97			return nil, err
98		}
99
100		return response, nil
101	} else {
102		return nil, wxpay_utility.NewApiException(
103			httpResponse.StatusCode,
104			httpResponse.Header,
105			respBody,
106		)
107	}
108}
109
110type GetImageGenerationTaskRequest struct {
111	BrandId             *string              `json:"brand_id,omitempty"`
112	TaskId              *string              `json:"task_id,omitempty"`
113	ImageGenerationType *ImageGenerationType `json:"image_generation_type,omitempty"`
114}
115
116func (o *GetImageGenerationTaskRequest) MarshalJSON() ([]byte, error) {
117	type Alias GetImageGenerationTaskRequest
118	a := &struct {
119		BrandId             *string              `json:"brand_id,omitempty"`
120		TaskId              *string              `json:"task_id,omitempty"`
121		ImageGenerationType *ImageGenerationType `json:"image_generation_type,omitempty"`
122		*Alias
123	}{
124		// 序列化时移除非 Body 字段
125		BrandId:             nil,
126		TaskId:              nil,
127		ImageGenerationType: nil,
128		Alias:               (*Alias)(o),
129	}
130	return json.Marshal(a)
131}
132
133type ImageGenerationTask struct {
134	BrandId             *string              `json:"brand_id,omitempty"`
135	TaskId              *string              `json:"task_id,omitempty"`
136	ImageGenerationType *ImageGenerationType `json:"image_generation_type,omitempty"`
137	TaskState           *TaskState           `json:"task_state,omitempty"`
138	CombineImageResult  *CombineImageResult  `json:"combine_image_result,omitempty"`
139	CutOutResult        *CutOutResult        `json:"cut_out_result,omitempty"`
140}
141
142type ImageGenerationType string
143
144func (e ImageGenerationType) Ptr() *ImageGenerationType {
145	return &e
146}
147
148const (
149	IMAGEGENERATIONTYPE_COMBINE_IMAGE ImageGenerationType = "COMBINE_IMAGE"
150	IMAGEGENERATIONTYPE_CUT_OUT       ImageGenerationType = "CUT_OUT"
151)
152
153type TaskState string
154
155func (e TaskState) Ptr() *TaskState {
156	return &e
157}
158
159const (
160	TASKSTATE_PROCESSING TaskState = "PROCESSING"
161	TASKSTATE_FAIL       TaskState = "FAIL"
162	TASKSTATE_SUCCESS    TaskState = "SUCCESS"
163)
164
165type CombineImageResult struct {
166	ImageUrl *string `json:"image_url,omitempty"`
167}
168
169type CutOutResult struct {
170	ImageUrl *string `json:"image_url,omitempty"`
171}
172