aws-sdk-java-v2-s3

Upload files to S3 using the AWS SDK for Java 2.x by creating an S3Client, calling putObject() with bucket and key parameters, and specifying the file path or stream. The SDK handles the HTTP request and object storage, returning metadata about the uploaded object.

Use multipart uploads with AWS SDK for Java 2.x to split large files into chunks, upload them concurrently, and complete the assembly server-side. This approach improves reliability, enables retry on individual parts, and reduces memory overhead compared to single uploads.

Generate presigned URLs using the AWS SDK for Java 2.x GetObjectPresigner to create time-limited, shareable links for S3 objects. Specify expiration duration and permissions; recipients can access the object without AWS credentials until the URL expires.

Yes, AWS SDK for Java 2.x integrates with Spring Boot for bucket and object operations. Spring simplifies client configuration and dependency injection, while the SDK provides synchronous and asynchronous clients for production environments and LocalStack for local testing.

Configure retry and backoff policies in the AWS SDK for Java 2.x client builder to automatically retry failed requests with exponential backoff. Define max attempts and backoff duration to handle transient failures and rate limiting without manual error handling logic.

Yes, AWS SDK for Java 2.x supports adding custom metadata, tagging, and server-side encryption to S3 objects during upload and retrieval. Metadata and encryption settings are applied per-object or configured at bucket level for consistent protection.