Lacak unggahan atau unduh objek Amazon S3 menggunakan SDK AWS

Contoh kode berikut menunjukkan cara melacak unggahan atau unduhan objek Amazon S3.

Java

SDK untuk Java 2.x

catatan

Ada lebih banyak tentang GitHub. Temukan contoh lengkapnya dan pelajari cara mengatur dan menjalankannya di AWS Repositori Contoh Kode.

Lacak kemajuan unggahan file.

    public void trackUploadFile(S3TransferManager transferManager, String bucketName,
                             String key, URI filePathURI) {
        UploadFileRequest uploadFileRequest = UploadFileRequest.builder()
                .putObjectRequest(b -> b.bucket(bucketName).key(key))
                .addTransferListener(LoggingTransferListener.create())  // Add listener.
                .source(Paths.get(filePathURI))
                .build();

        FileUpload fileUpload = transferManager.uploadFile(uploadFileRequest);

        fileUpload.completionFuture().join();
        /*
            The SDK provides a LoggingTransferListener implementation of the TransferListener interface.
            You can also implement the interface to provide your own logic.

            Configure log4J2 with settings such as the following.
                <Configuration status="WARN">
                    <Appenders>
                        <Console name="AlignedConsoleAppender" target="SYSTEM_OUT">
                            <PatternLayout pattern="%m%n"/>
                        </Console>
                    </Appenders>

                    <Loggers>
                        <logger name="software.amazon.awssdk.transfer.s3.progress.LoggingTransferListener" level="INFO" additivity="false">
                            <AppenderRef ref="AlignedConsoleAppender"/>
                        </logger>
                    </Loggers>
                </Configuration>

            Log4J2 logs the progress. The following is example output for a 21.3 MB file upload.
                Transfer initiated...
                |                    | 0.0%
                |====                | 21.1%
                |============        | 60.5%
                |====================| 100.0%
                Transfer complete!
        */
    }

Lacak kemajuan unduhan file.

    public void trackDownloadFile(S3TransferManager transferManager, String bucketName,
                             String key, String downloadedFileWithPath) {
        DownloadFileRequest downloadFileRequest = DownloadFileRequest.builder()
                .getObjectRequest(b -> b.bucket(bucketName).key(key))
                .addTransferListener(LoggingTransferListener.create())  // Add listener.
                .destination(Paths.get(downloadedFileWithPath))
                .build();

        FileDownload downloadFile = transferManager.downloadFile(downloadFileRequest);

        CompletedFileDownload downloadResult = downloadFile.completionFuture().join();
        /*
            The SDK provides a LoggingTransferListener implementation of the TransferListener interface.
            You can also implement the interface to provide your own logic.

            Configure log4J2 with settings such as the following.
                <Configuration status="WARN">
                    <Appenders>
                        <Console name="AlignedConsoleAppender" target="SYSTEM_OUT">
                            <PatternLayout pattern="%m%n"/>
                        </Console>
                    </Appenders>

                    <Loggers>
                        <logger name="software.amazon.awssdk.transfer.s3.progress.LoggingTransferListener" level="INFO" additivity="false">
                            <AppenderRef ref="AlignedConsoleAppender"/>
                        </logger>
                    </Loggers>
                </Configuration>

            Log4J2 logs the progress. The following is example output for a 21.3 MB file download.
                Transfer initiated...
                |=======             | 39.4%
                |===============     | 78.8%
                |====================| 100.0%
                Transfer complete!
        */
    }

• Untuk detail API, lihat topik berikut di Referensi API AWS SDK for Java 2.x .

  • GetObject

  • PutObject

Untuk daftar lengkap panduan pengembang AWS SDK dan contoh kode, lihatMenggunakan layanan ini dengan AWS SDK. Topik ini juga mencakup informasi tentang memulai dan detail tentang versi SDK sebelumnya.