删除集合

您可以使用该DeleteCollection操作来删除收藏夹。

有关更多信息，请参阅 管理集合。

删除集合 (SDK)

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 DeleteCollection 操作。

   Java

   此示例删除集合。

   将 collectionId 的值更改为您要删除的集合。

   //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.DeleteCollectionRequest;
   import com.amazonaws.services.rekognition.model.DeleteCollectionResult;
   
   
   public class DeleteCollection {
   
      public static void main(String[] args) throws Exception {
   
         AmazonRekognition rekognitionClient = AmazonRekognitionClientBuilder.defaultClient();
   
         String collectionId = "MyCollection";
   
         System.out.println("Deleting collections");
         
         DeleteCollectionRequest request = new DeleteCollectionRequest()
            .withCollectionId(collectionId);
         DeleteCollectionResult deleteCollectionResult = rekognitionClient.deleteCollection(request);        
     
         System.out.println(collectionId + ": " + deleteCollectionResult.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。

   // snippet-start:[rekognition.java2.delete_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.DeleteCollectionRequest;
   import software.amazon.awssdk.services.rekognition.model.DeleteCollectionResponse;
   import software.amazon.awssdk.services.rekognition.model.RekognitionException;
   // snippet-end:[rekognition.java2.delete_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 DeleteCollection {
   
       public static void main(String[] args) {
   
           final String usage = "\n" +
               "Usage: " +
               "   <collectionId> \n\n" +
               "Where:\n" +
               "   collectionId - The id of the collection to delete. \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("Deleting collection: " + collectionId);
           deleteMyCollection(rekClient, collectionId);
           rekClient.close();
       }
   
       // snippet-start:[rekognition.java2.delete_collection.main]
       public static void deleteMyCollection(RekognitionClient rekClient,String collectionId ) {
   
           try {
               DeleteCollectionRequest deleteCollectionRequest = DeleteCollectionRequest.builder()
                   .collectionId(collectionId)
                   .build();
   
               DeleteCollectionResponse deleteCollectionResponse = rekClient.deleteCollection(deleteCollectionRequest);
               System.out.println(collectionId + ": " + deleteCollectionResponse.statusCode().toString());
   
           } catch(RekognitionException e) {
               System.out.println(e.getMessage());
               System.exit(1);
           }
       }
       // snippet-end:[rekognition.java2.delete_collection.main]
   }

   AWS CLI

   此 AWS CLI 命令显示 delete-collection CLI 操作的 JSON 输出。将 collection-id 的值替换为您要删除的集合的名称。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。

   aws rekognition delete-collection --collection-id collection-name --profile profile-name

   Python

   此示例删除集合。

   将 collection_id 的值更改为您要删除的集合。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
   from botocore.exceptions import ClientError
   
   def delete_collection(collection_id):
   
       print('Attempting to delete collection ' + collection_id)
       session = boto3.Session(profile_name='default')
       client = session.client('rekognition')
   
       status_code = 0
   
       try:
           response = client.delete_collection(CollectionId=collection_id)
           status_code = response['StatusCode']
   
       except ClientError as e:
           if e.response['Error']['Code'] == 'ResourceNotFoundException':
               print('The collection ' + collection_id + ' was not found ')
           else:
               print('Error other than Not Found occurred: ' + e.response['Error']['Message'])
           status_code = e.response['ResponseMetadata']['HTTPStatusCode']
       return (status_code)
   
   def main():
   
       collection_id = 'collection-name'
       status_code = delete_collection(collection_id)
       print('Status code: ' + str(status_code))
   
   if __name__ == "__main__":
       main()
   
   

   .NET

   此示例删除集合。

   将 collectionId 的值更改为您要删除的集合。

   //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 DeleteCollection
   {
       public static void Example()
       {
           AmazonRekognitionClient rekognitionClient = new AmazonRekognitionClient();
   
           String collectionId = "MyCollection";
           Console.WriteLine("Deleting collection: " + collectionId);
   
           DeleteCollectionRequest deleteCollectionRequest = new DeleteCollectionRequest()
           {
               CollectionId = collectionId
           };
   
           DeleteCollectionResponse deleteCollectionResponse = rekognitionClient.DeleteCollection(deleteCollectionRequest);
           Console.WriteLine(collectionId + ": " + deleteCollectionResponse.StatusCode);
       }
   }
   

   Node.js

   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 { DeleteCollectionCommand } 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 rekogClient = new RekognitionClient({region: REGION, 
     credentials: fromIni({profile: profileName,}), 
   });
   
   // Name the collection
   const collection_name = "collection-name"
   
   const deleteCollection = async (collectionName) => {
       try {
          console.log(`Attempting to delete collection named - ${collectionName}`)
          var response = await rekogClient.send(new DeleteCollectionCommand({CollectionId: collectionName}))
          var status_code = response.StatusCode
          if (status_code = 200){
              console.log("Collection successfully deleted.")
          }
          return response; // For unit tests.
       } catch (err) {
         console.log("Error", err.stack);
       }
     };
   
   deleteCollection(collection_name)

DeleteCollection 操作请求

DeleteCollection 的输入是要删除的集合的 ID，如下面的 JSON 示例所示。

{
    "CollectionId": "MyCollection"
}

DeleteCollection 操作响应

DeleteCollection 响应包含 HTTP 状态代码，指示操作成功还是失败。如果成功删除了集合，则返回 200。

{"StatusCode":200}