创建集合

您可以使用该CreateCollection操作来创建集合。

有关更多信息，请参阅 管理集合。

创建集合 (开发工具包)

1. 如果您尚未执行以下操作，请：

   1. 使用 AmazonRekognitionFullAccess 权限创建或更新用户。有关更多信息，请参阅 步骤 1：设置 AWS 账户并创建用户。

   2. 安装和配置 AWS CLI 和 AWS SDK。有关更多信息，请参阅 第 2 步：设置 AWS CLI 和 AWS 软件开发工具包。

2. 使用以下示例调用 CreateCollection 操作。

   Java

   以下示例创建一个集合，并显示其 Amazon 资源名称 (ARN)。

   将 collectionId 的值更改为您要创建的集合的名称。

   //Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   //PDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-rekognition-developer-guide/blob/master/LICENSE-SAMPLECODE.)
   
   package aws.example.rekognition.image;
   
   import com.amazonaws.services.rekognition.AmazonRekognition;
   import com.amazonaws.services.rekognition.AmazonRekognitionClientBuilder;
   import com.amazonaws.services.rekognition.model.CreateCollectionRequest;
   import com.amazonaws.services.rekognition.model.CreateCollectionResult;
   
   
   public class CreateCollection {
   
      public static void main(String[] args) throws Exception {
   
   
         AmazonRekognition rekognitionClient = AmazonRekognitionClientBuilder.defaultClient();
   
         
         String collectionId = "MyCollection";
               System.out.println("Creating collection: " +
            collectionId );
               
           CreateCollectionRequest request = new CreateCollectionRequest()
                       .withCollectionId(collectionId);
              
         CreateCollectionResult createCollectionResult = rekognitionClient.createCollection(request); 
         System.out.println("CollectionArn : " +
            createCollectionResult.getCollectionArn());
         System.out.println("Status code : " +
            createCollectionResult.getStatusCode().toString());
   
      } 
   
   }
       
   
   

   Java V2

   此代码取自 AWS 文档 SDK 示例 GitHub 存储库。请在此处查看完整示例。

   将创建 Rekognition 会话的行中的profile_name值替换为您的开发人员资料的名称。

   //snippet-start:[rekognition.java2.create_collection.import]
   import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
   import software.amazon.awssdk.regions.Region;
   import software.amazon.awssdk.services.rekognition.RekognitionClient;
   import software.amazon.awssdk.services.rekognition.model.CreateCollectionResponse;
   import software.amazon.awssdk.services.rekognition.model.CreateCollectionRequest;
   import software.amazon.awssdk.services.rekognition.model.RekognitionException;
   //snippet-end:[rekognition.java2.create_collection.import]
   
   /**
   * Before running this Java V2 code example, set up your development environment, including your credentials.
   *
   * For more information, see the following documentation topic:
   *
   * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
   */
   public class CreateCollection {
   
    public static void main(String[] args) {
   
        final String usage = "\n" +
            "Usage: " +
            "   <collectionName> \n\n" +
            "Where:\n" +
            "   collectionName - The name of the collection. \n\n";
   
        if (args.length != 1) {
            System.out.println(usage);
            System.exit(1);
        }
   
        String collectionId = args[0];
        Region region = Region.US_EAST_1;
        RekognitionClient rekClient = RekognitionClient.builder()
            .region(region)
            .credentialsProvider(ProfileCredentialsProvider.create("profile-name"))
            .build();
   
        System.out.println("Creating collection: " +collectionId);
        createMyCollection(rekClient, collectionId );
        rekClient.close();
    }
   
    // snippet-start:[rekognition.java2.create_collection.main]
    public static void createMyCollection(RekognitionClient rekClient,String collectionId ) {
   
        try {
            CreateCollectionRequest collectionRequest = CreateCollectionRequest.builder()
                .collectionId(collectionId)
                .build();
   
            CreateCollectionResponse collectionResponse = rekClient.createCollection(collectionRequest);
            System.out.println("CollectionArn: " + collectionResponse.collectionArn());
            System.out.println("Status code: " + collectionResponse.statusCode().toString());
   
        } catch(RekognitionException e) {
            System.out.println(e.getMessage());
            System.exit(1);
        }
    }
    // snippet-end:[rekognition.java2.create_collection.main]

   AWS CLI

   此 AWS CLI 命令显示 create-collection CLI 操作的 JSON 输出。

   将 collection-id 的值替换为您要创建的集合的名称。

   将profile_name的值替换为您的开发人员资料的名称。

   aws rekognition create-collection --profile profile-name --collection-id "collection-name"

   Python

   以下示例创建一个集合，并显示其 Amazon 资源名称 (ARN)。

   将 collection_id 的值更改为您要创建的集合的名称。将创建 Rekognition 会话的行中的profile_name值替换为您的开发人员资料的名称。

   # Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   # PDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-rekognition-developer-guide/blob/master/LICENSE-SAMPLECODE.)
   
   import boto3
   
   def create_collection(collection_id):
       session = boto3.Session(profile_name='profile-name')
       client = session.client('rekognition')
   
       # Create a collection
       print('Creating collection:' + collection_id)
       response = client.create_collection(CollectionId=collection_id)
       print('Collection ARN: ' + response['CollectionArn'])
       print('Status code: ' + str(response['StatusCode']))
       print('Done...')
   
   def main():
       collection_id = "collection-id"
       create_collection(collection_id)
   
   if __name__ == "__main__":
       main()

   .NET

   以下示例创建一个集合，并显示其 Amazon 资源名称 (ARN)。

   将 collectionId 的值更改为您要创建的集合的名称。

   //Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   //PDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-rekognition-developer-guide/blob/master/LICENSE-SAMPLECODE.)
   
   using System;
   using Amazon.Rekognition;
   using Amazon.Rekognition.Model;
   
   public class CreateCollection
   {
       public static void Example()
       {
           AmazonRekognitionClient rekognitionClient = new AmazonRekognitionClient();
   
           String collectionId = "MyCollection";
           Console.WriteLine("Creating collection: " + collectionId);
   
           CreateCollectionRequest createCollectionRequest = new CreateCollectionRequest()
           {
               CollectionId = collectionId
           };
   
           CreateCollectionResponse createCollectionResponse = rekognitionClient.CreateCollection(createCollectionRequest);
           Console.WriteLine("CollectionArn : " + createCollectionResponse.CollectionArn);
           Console.WriteLine("Status code : " + createCollectionResponse.StatusCode);
   
       }
   }
   

   Node.JS

   在以下示例中，将region的值替换为与您的账户关联的区域名称，并将 collectionName 的值替换为所需的集合名称。

   将创建 Rekognition 会话的行中的profile_name值替换为您的开发人员资料的名称。

   //Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   //PDX-License-Identifier: MIT-0 (For details, see https://github.com/awsdocs/amazon-rekognition-developer-guide/blob/master/LICENSE-SAMPLECODE.)
   
   import { CreateCollectionCommand} from  "@aws-sdk/client-rekognition";
   import  { RekognitionClient } from "@aws-sdk/client-rekognition";
   import {fromIni} from '@aws-sdk/credential-providers';
   
   // Set the AWS Region.
   const REGION = "region-name"; //e.g. "us-east-1"
   // Set the profile name
   const profileName = "profile-name"
   // Name the collection
   const collectionName = "collection-name"
   const rekogClient = new RekognitionClient({region: REGION, 
     credentials: fromIni({profile: profileName,}), 
   });
   
   const createCollection = async (collectionName) => {
       try {
          console.log(`Creating collection: ${collectionName}`)
          const data = await rekogClient.send(new CreateCollectionCommand({CollectionId: collectionName}));
          console.log("Collection ARN:")
          console.log(data.CollectionARN)
          console.log("Status Code:")
          console.log(String(data.StatusCode))
          console.log("Success.",  data);
          return data;
       } catch (err) {
         console.log("Error", err.stack);
       }
     };
   
    createCollection(collectionName)

CreateCollection 操作请求

CreationCollection 的输入是您要创建的集合的名称。

{
    "CollectionId": "MyCollection"
}

CreateCollection 操作响应

Amazon Rekognition 将创建集合，并返回最新创建的集合的 Amazon 资源名称 (ARN)。

{
   "CollectionArn": "aws:rekognition:us-east-1:acct-id:collection/examplecollection",
   "StatusCode": 200
}