如何使用 AWS Java SDK V2 公开 S3 object？

Question

如何通过 AWS Java SDK V2.2.41 公开 S3 object？

Specifically, what API methods via the Java AWS SDK V2 can be used to make an Object public when it's being uploaded or we make an existing uploaded object publicly readable?

Answer 1

您可以使用 CannedAccessControlList.PublicRead 属性通过 AWS Java SDK 创建公共对象。

s3client.putObject(putObjectRequest.withCannedAcl(CannedAccessControlList.PublicRead))

Answer 2

好吧，终于找到了答案：我们可以使用

.acl(ObjectCannedACL.PUBLIC_READ)

使用 PutObjectRequest 如下：

    PutObjectResponse putObjRes = s3Client.putObject(
            PutObjectRequest.builder()
                    .bucket("bucket")
                    .key("key)
                    .acl(ObjectCannedACL.PUBLIC_READ)
                    .build(), RequestBody.fromFile(<file>));