即使我将内容类型设置为text/html，它在S3上最终会变成application/octet-stream。ByteArrayInputStreamcontentsAsStream=newByteArrayInputStream(contentAsBytes);ObjectMetadatamd=newObjectMetadata();md.setContentLength(contentAsBytes.length);md.setContentType("text/html");s3.putObject(newPutObjectRequest(ARTIST_BUCKET_NAME,