文档 AWS SDK 示例 GitHub 存储库中还有更多 [S AWS DK 示例](https://github.com/awsdocs/aws-doc-sdk-examples)。

本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。

# 使用 AWS SDK 删除 CloudFront 签名资源
<a name="cloudfront_example_cloudfront_DeleteSigningResources_section"></a>

以下代码示例演示了如何删除用于访问 Amazon Simple Storage Service (Amazon S3) 桶中的受限内容的资源。

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#### [ Java ]

**适用于 Java 的 SDK 2.x**  
 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/cloudfront#code-examples) 中查找完整示例，了解如何进行设置和运行。

```
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import software.amazon.awssdk.services.cloudfront.CloudFrontClient;
import software.amazon.awssdk.services.cloudfront.model.DeleteKeyGroupResponse;
import software.amazon.awssdk.services.cloudfront.model.DeleteOriginAccessControlResponse;
import software.amazon.awssdk.services.cloudfront.model.DeletePublicKeyResponse;
import software.amazon.awssdk.services.cloudfront.model.GetKeyGroupResponse;
import software.amazon.awssdk.services.cloudfront.model.GetOriginAccessControlResponse;
import software.amazon.awssdk.services.cloudfront.model.GetPublicKeyResponse;

public class DeleteSigningResources {
    private static final Logger logger = LoggerFactory.getLogger(DeleteSigningResources.class);

    public static void deleteOriginAccessControl(final CloudFrontClient cloudFrontClient,
            final String originAccessControlId) {
        GetOriginAccessControlResponse getResponse = cloudFrontClient
                .getOriginAccessControl(b -> b.id(originAccessControlId));
        DeleteOriginAccessControlResponse deleteResponse = cloudFrontClient.deleteOriginAccessControl(builder -> builder
                .id(originAccessControlId)
                .ifMatch(getResponse.eTag()));
        if (deleteResponse.sdkHttpResponse().isSuccessful()) {
            logger.info("Successfully deleted Origin Access Control [{}]", originAccessControlId);
        }
    }

    public static void deleteKeyGroup(final CloudFrontClient cloudFrontClient, final String keyGroupId) {

        GetKeyGroupResponse getResponse = cloudFrontClient.getKeyGroup(b -> b.id(keyGroupId));
        DeleteKeyGroupResponse deleteResponse = cloudFrontClient.deleteKeyGroup(builder -> builder
                .id(keyGroupId)
                .ifMatch(getResponse.eTag()));
        if (deleteResponse.sdkHttpResponse().isSuccessful()) {
            logger.info("Successfully deleted Key Group [{}]", keyGroupId);
        }
    }

    public static void deletePublicKey(final CloudFrontClient cloudFrontClient, final String publicKeyId) {
        GetPublicKeyResponse getResponse = cloudFrontClient.getPublicKey(b -> b.id(publicKeyId));

        DeletePublicKeyResponse deleteResponse = cloudFrontClient.deletePublicKey(builder -> builder
                .id(publicKeyId)
                .ifMatch(getResponse.eTag()));

        if (deleteResponse.sdkHttpResponse().isSuccessful()) {
            logger.info("Successfully deleted Public Key [{}]", publicKeyId);
        }
    }
}
```
+ 有关 API 详细信息，请参阅《AWS SDK for Java 2.x API Reference》**中的以下主题。
  + [DeleteKeyGroup](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudfront-2020-05-31/DeleteKeyGroup)
  + [DeleteOriginAccessControl](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudfront-2020-05-31/DeleteOriginAccessControl)
  + [DeletePublicKey](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudfront-2020-05-31/DeletePublicKey)

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