是否可以使用AWS SDK for Java 2 創建一個預簽名的URL來訪問阿里雲/阿里雲OSS存儲桶內容？

Question

我正在嘗試使用 AWS SDK for Java 2 API 來訪問 S3。 我得到了它的大部分工作，除了presign URLs。

根據https://www.alibabacloud.com/help/doc-detail/31952.htm看起來有一個不同的查詢參數要構建。 看起來我必須使用他們的庫並有一個開關作為SignUtils的附加或重新實現部分。

Answer 1

顯然您可以使用 AWS 的庫來執行此操作。 您必須確保 Presigner 還具有endpointOverride配置集。 這是我的代碼，我已經注釋了相關的地方

@Configuration
@Slf4j
public class S3ClientConfiguration {

    // SPECIFY OVERRIDE
    @Value("${aws.s3.portfolio.endpoint:#{null}}")
    private URI endpointOverride;

    @Bean
    @ConditionalOnProperty(prefix = "aws.s3", name = "enabled", matchIfMissing = true)
    public S3AsyncClient amazonS3AsyncClient(
        final AwsCredentialsProvider credentialsProvider,
        final AwsRegionProvider regionProvider,
        final ClientOverrideConfiguration clientOverrideConfiguration) {

        final S3AsyncClientBuilder builder = S3AsyncClient.builder()
            .credentialsProvider(credentialsProvider)
            .overrideConfiguration(clientOverrideConfiguration)
            .region(regionProvider.getRegion());

        // SPECIFY OVERRIDE
        if (endpointOverride != null) {
            builder.endpointOverride(endpointOverride);
        }
        return builder
            .build();
    }

    @Bean
    @ConditionalOnProperty(prefix = "aws.s3", name = "enabled", matchIfMissing = true)
    public S3Client amazonS3Client(
        final AwsCredentialsProvider credentialsProvider,
        final AwsRegionProvider regionProvider,
        final ClientOverrideConfiguration clientOverrideConfiguration) {

        final S3ClientBuilder builder = S3Client.builder()
            .credentialsProvider(credentialsProvider)
            .overrideConfiguration(clientOverrideConfiguration)
            .region(regionProvider.getRegion());

        // SPECIFY OVERRIDE
        if (endpointOverride != null) {
            builder.endpointOverride(endpointOverride);
        }
        return builder
            .build();

    }

    @Bean
    public ClientOverrideConfiguration clientOverrideConfiguration(final HttpTracing httpTracing) {

        final var awsSdkTracing = AwsSdkTracing.create(httpTracing);
        return ClientOverrideConfiguration.builder()
            .addExecutionInterceptor(awsSdkTracing.executionInterceptor())
            .build();

    }

    @Bean
    @ConditionalOnProperty(prefix = "aws.s3", name = "enabled", matchIfMissing = true)
    public AwsCredentialsProvider credentialsProvider() {

        return DefaultCredentialsProvider.create();
    }

    @Bean
    @ConditionalOnProperty(prefix = "aws.s3", name = "enabled", matchIfMissing = true)
    public S3Presigner presigner(
        final AwsCredentialsProvider credentialsProvider,
        final AwsRegionProvider regionProvider) {

        final var builder = S3Presigner.builder()
            .credentialsProvider(credentialsProvider)
            .region(regionProvider.getRegion());

        // SPECIFY OVERRIDE
        if (endpointOverride != null) {
            builder.endpointOverride(endpointOverride);
        }
        return builder
            .build();

    }

    @Bean
    @ConditionalOnProperty(prefix = "aws.s3", name = "enabled", matchIfMissing = true)
    public AwsRegionProvider regionProvider() {

        return DefaultAwsRegionProviderChain.builder().build();

    }

}