下载文件的方法与上传非常相似,我们只需调用指定的接口进行下载。 importcom.amazonaws.services.s3.model.S3Object;importjava.io.FileOutputStream;importjava.io.InputStream;publicclassS3Downloader{privateAmazonS3s3Client;publicS3Downloader(AmazonS3s3Client){this.s3Client=s3Client;}publicvoiddownloadFile(Stringbuck...
Stringkey="my-object";GetObjectRequestgetObjectRequest=GetObjectRequest.builder().bucket(bucketName).key(key).build();s3.getObject(getObjectRequest,ResponseTransformer.toFile(newFile("path/to/save/my-object"))); 1. 2. 3. 4. 5. 6. 7. 通过调用s3.getObject方法,我们可以将指定的对象下载到本地...
GetObjectRequest rangeObjectRequest = new GetObjectRequest(bucket, filename).withRange(from,end); objectPortion = s3Client.getObject(rangeObjectRequest); input = objectPortion.getObjectContent(); buffer = new BufferedInputStream(input); byte[] buf = new byte[1024]; int len; long start = this.fr...
客户端100并发,每个并发执行1000次迭代,每次迭代会执行3个操作 putObject, getObject, deleteObject。 这种场景测试主要是IO的压力 测试结果,Cangjie的S3客户端性能和Java版本的基本持平,但是Cangjie的内存占用较小。 3.3. 无后端服务测试 为了测试纯客户端性能,提供了MockHttpClient,单线程的循环测试,不实际发送 HTTP 请...
S3Object s3Object = s3Client.getObject(s3Path, keyName); if(s3Object!=null){ flag = true; } if(flag){ System.out.println("File exists,filename:"+keyName); } }catch(Exception e){ e.printStackTrace(); } } // === object === public static void main(String[] args) throws IOExcep...
The ClientConfiguration retry logic is honored in the core (AmazonHttpClient). There SocketExceptions are retried as you'd expect. retryableDownloadS3ObjectToFile gets this for free by calling the getObject method on the client so it could potentially retry 2 * numOfRetriesInClientConfig in the...
import software.amazon.awssdk.services.s3.model.GetObjectResponse; import java.net.URL; public class S3ObjectDownloader { public static void main(String[] args) { // 配置AWS认证信息 AwsBasicCredentials credentials = AwsBasicCredentials.create("accessKey", "secretKey"); ...
客户端100并发, 每个并发执行1000次迭代, 每次迭代会执行3个操作 putObject,getObject,deleteObject。这种场景测试主要是IO的压力，测试结果，Cangjie的S3客户端性能和Java版本的基本持平，但是Cangjie的内存占用较小。3.3 无后端服务测试 为了测试纯客户端性能，提供了MockHttpClient，单线程的循环测试, 不实际发送 HTTP ...
使用ResponseInputStream。希望下面的代码能解决你的问题。
GetObjectRequest objectRequest = GetObjectRequest.builder() .bucket(bucketName) .key(objectKey) .build(); ResponseBytes<GetObjectResponse> responseResponseBytes = s3Client.getObjectAsBytes(objectRequest); byte[] data = responseResponseBytes.asByteArray(); // Write the data to a local file. java....