更新时间:2023-11-21 GMT+08:00
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搜索数据示例

本章节对搜索数据AK/SK方式使用SDK进行示例说明。

搜索示例代码只需将AK/SK信息替换为实际AK/SK,代码中可以使用SearchParam类的ImageUrl、SearchType、OptionalParams、Keywords、CustomTags配置服务输入参数,其中OptionalParams为服务可选输入参数,配置完成后运行即可。

  1. 搜索数据调用示例代码如下:
    using System;
    using System.Collections.Generic;
    using HuaweiCloud.SDK.Core;
    using HuaweiCloud.SDK.Core.Auth;
    using HuaweiCloud.SDK.ImageSearch;
    using HuaweiCloud.SDK.ImageSearch.V2;
    using HuaweiCloud.SDK.ImageSearch.V2.Model;
     
    namespace RunSearchSolution
    {
        class Program
        {
            static void Main(string[] args)
            {   
           //认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险,建议在配置文件或者环境变量中密文存放,使用时解密,确保安全
           //本示例以ak和sk保存在环境变量中来实现身份验证为例,运行本示例前请先在本地环境中设置环境变量HUAWEICLOUD_SDK_AK和HUAWEICLOUD_SDK_SK  
            string accessKey= Environment.GetEnvironmentVariable("HUAWEICLOUD_SDK_AK", EnvironmentVariableTarget.Machine);
            string secretKey= Environment.GetEnvironmentVariable("HUAWEICLOUD_SDK_SK", EnvironmentVariableTarget.Machine);
                const string iamEndpoint = "https://iam.cn-north-4.myhuaweicloud.com";
                const string endpoint = "https://mms.cn-north-4.myhuaweicloud.com";
                const string projectId = "project_id";
     
                var config = HttpConfig.GetDefaultConfig();
                config.IgnoreSslVerification = true;
                var auth = new BasicCredentials(ak, sk, projectId).WithIamEndpoint(iamEndpoint);
               
               // 初始化客户端
                var client = ImageSearchClient.NewBuilder()
                        .WithCredential(auth)
                        // 设置region, 示例中为北京四
                        .WithRegion(new Region("cn-north-4", endpoint))
                        .WithHttpConfig(config)
                        .Build();
     
                var req = new RunSearchRequest
                {
                    ServiceName = "service_name"
                };
                SearchOptionalParam optionalParamsbody = new SearchOptionalParam()
                {
                    DoDet = true,
                    Box = "135,489,1117,1341",
                    DoCls = true
                };
                List<string> listCustomTagsCustomTags = new List<string>();
                listCustomTagsCustomTags.Add("value1");
                listCustomTagsCustomTags.Add("value2");
                listCustomTagsCustomTags.Add("value3");
                Dictionary<string, List<string>> listCustomTagsbody = new Dictionary<string, List<string>>();
                listCustomTagsbody.Add("key", listCustomTagsCustomTags);
                req.Body = new SearchParam()
                {
                    OptionalParams = optionalParamsbody,
                    // 替换为公网可以访问的图片地址
                    ImageUrl = "https://bucketname.obs.cn-north-4.myhuaweicloud.com/image/test1.jpg
    ",
                    CustomTags = listCustomTagsbody,
                    Offset = 0,
                    Limit = 30,
                    SearchType = SearchParam.SearchTypeEnum.FromValue("CATEGORY")
                };
     
                try
                {
                    var resp = client.RunSearch(req);
                    var respStatusCode = resp.HttpStatusCode;
                    Console.WriteLine(respStatusCode);
                }
                catch (RequestTimeoutException requestTimeoutException)
                {
                    Console.WriteLine(requestTimeoutException.ErrorMessage);
                }
                catch (ServiceResponseException clientRequestException)
                {
                    Console.WriteLine(clientRequestException.HttpStatusCode);
                    Console.WriteLine(clientRequestException.RequestId);
                    Console.WriteLine(clientRequestException.ErrorCode);
                    Console.WriteLine(clientRequestException.ErrorMsg);
                }
                catch (ConnectionException connectionException)
                {
                    Console.WriteLine(connectionException.ErrorMessage);
                }
            }
        }
    }
  2. 执行示例代码文件,控制台输出搜索数据结果即表示程序执行成功。
    200
    {
        "result": "success",
        "data": {
            "items": [
                {
                    "id": "item_id",
                    "score": 1.0,
                    "source": {
                        "custom_tags": {
                            "key": "value"
                        }
                    }
                }
            ],
            "search_info": {
                "total_num": 1,
                "return_num": 1,
                "search_time": 969
            },
            "image_info": {
                "box": "135,489,1117,1341",
                "category": 0,
                "category_name": "others",
                "objects": [
                    {
                        "box": "135,489,1117,1341",
                        "category": 0,
                        "category_name": "others"
                    }
                ]
            }
        }
    }

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