使用以下方法将档案上传到 S3 Glacier 中的文件库 Amazon SDK for Java - Amazon S3 Glacier
Amazon Web Services 文档中描述的 Amazon Web Services 服务或功能可能因区域而异。要查看适用于中国区域的差异,请参阅 中国的 Amazon Web Services 服务入门 (PDF)

此页面仅适用于使用保管库的 S3 Glacier 服务的现有客户以及 2012 年以RESTAPI来的原始客户。

如果您正在寻找档案存储解决方案,我们建议您在亚马逊 S3、S3 Glacier 即时检索、S3 Glacier 灵活检索和 S3 Glacier Deep Archive Dee p Archive 中使用 S3 Glacier 存储类。要了解有关这些存储选项的更多信息,请参阅 Amazon S3 用户指南中的 S3 Glacier 存储类和使用 S3 Glacier 存储类的长期数据存储。这些存储类别使用 Amazon S3API,适用于所有区域,并且可以在 Amazon S3 控制台中进行管理。它们提供存储成本分析、存储镜头、高级可选加密功能等功能。

本文属于机器翻译版本。若本译文内容与英语原文存在差异,则一律以英文原文为准。

使用以下方法将档案上传到 S3 Glacier 中的文件库 Amazon SDK for Java

以下 Java 代码示例使用API的高级代码将示例档案上传 Amazon SDK for Java 到文件库。在代码示例中,请注意以下情况:

  • 以下示例创建 AmazonGlacierClient 类的实例。

  • 该示例使用了高级ArchiveTransferManager类API的uploadAPI操作 Amazon SDK for Java。

  • 该示例使用美国西部(俄勒冈州)区域 (us-west-2)。

有关如何运行此示例的 step-by-step 说明,请参阅使用 Eclipse 运行 Amazon S3 Glacier 的 Java 示例。您必须更新待上传档案文件名称旁显示的代码。

注意

Amazon S3 Glacier 在文件库中保留一份所有档案的清单。当您上传以下示例中的档案时,该档案直到文件库清单已更新后才会在管理控制台的文件库中显示。此更新通常每天进行一次。

SDK适用于 Java 2.x
注意

还有更多相关信息 GitHub。查找完整示例,学习如何在 Amazon 代码示例存储库中进行设置和运行。

import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.glacier.GlacierClient; import software.amazon.awssdk.services.glacier.model.UploadArchiveRequest; import software.amazon.awssdk.services.glacier.model.UploadArchiveResponse; import software.amazon.awssdk.services.glacier.model.GlacierException; import java.io.File; import java.nio.file.Path; import java.nio.file.Paths; import java.io.FileInputStream; import java.io.IOException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; /** * Before running this Java V2 code example, set up your development * environment, including your credentials. * * For more information, see the following documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class UploadArchive { static final int ONE_MB = 1024 * 1024; public static void main(String[] args) { final String usage = """ Usage: <strPath> <vaultName>\s Where: strPath - The path to the archive to upload (for example, C:\\AWS\\test.pdf). vaultName - The name of the vault. """; if (args.length != 2) { System.out.println(usage); System.exit(1); } String strPath = args[0]; String vaultName = args[1]; File myFile = new File(strPath); Path path = Paths.get(strPath); GlacierClient glacier = GlacierClient.builder() .region(Region.US_EAST_1) .build(); String archiveId = uploadContent(glacier, path, vaultName, myFile); System.out.println("The ID of the archived item is " + archiveId); glacier.close(); } public static String uploadContent(GlacierClient glacier, Path path, String vaultName, File myFile) { // Get an SHA-256 tree hash value. String checkVal = computeSHA256(myFile); try { UploadArchiveRequest uploadRequest = UploadArchiveRequest.builder() .vaultName(vaultName) .checksum(checkVal) .build(); UploadArchiveResponse res = glacier.uploadArchive(uploadRequest, path); return res.archiveId(); } catch (GlacierException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } return ""; } private static String computeSHA256(File inputFile) { try { byte[] treeHash = computeSHA256TreeHash(inputFile); System.out.printf("SHA-256 tree hash = %s\n", toHex(treeHash)); return toHex(treeHash); } catch (IOException ioe) { System.err.format("Exception when reading from file %s: %s", inputFile, ioe.getMessage()); System.exit(-1); } catch (NoSuchAlgorithmException nsae) { System.err.format("Cannot locate MessageDigest algorithm for SHA-256: %s", nsae.getMessage()); System.exit(-1); } return ""; } public static byte[] computeSHA256TreeHash(File inputFile) throws IOException, NoSuchAlgorithmException { byte[][] chunkSHA256Hashes = getChunkSHA256Hashes(inputFile); return computeSHA256TreeHash(chunkSHA256Hashes); } /** * Computes an SHA256 checksum for each 1 MB chunk of the input file. This * includes the checksum for the last chunk, even if it's smaller than 1 MB. */ public static byte[][] getChunkSHA256Hashes(File file) throws IOException, NoSuchAlgorithmException { MessageDigest md = MessageDigest.getInstance("SHA-256"); long numChunks = file.length() / ONE_MB; if (file.length() % ONE_MB > 0) { numChunks++; } if (numChunks == 0) { return new byte[][] { md.digest() }; } byte[][] chunkSHA256Hashes = new byte[(int) numChunks][]; FileInputStream fileStream = null; try { fileStream = new FileInputStream(file); byte[] buff = new byte[ONE_MB]; int bytesRead; int idx = 0; while ((bytesRead = fileStream.read(buff, 0, ONE_MB)) > 0) { md.reset(); md.update(buff, 0, bytesRead); chunkSHA256Hashes[idx++] = md.digest(); } return chunkSHA256Hashes; } finally { if (fileStream != null) { try { fileStream.close(); } catch (IOException ioe) { System.err.printf("Exception while closing %s.\n %s", file.getName(), ioe.getMessage()); } } } } /** * Computes the SHA-256 tree hash for the passed array of 1 MB chunk * checksums. */ public static byte[] computeSHA256TreeHash(byte[][] chunkSHA256Hashes) throws NoSuchAlgorithmException { MessageDigest md = MessageDigest.getInstance("SHA-256"); byte[][] prevLvlHashes = chunkSHA256Hashes; while (prevLvlHashes.length > 1) { int len = prevLvlHashes.length / 2; if (prevLvlHashes.length % 2 != 0) { len++; } byte[][] currLvlHashes = new byte[len][]; int j = 0; for (int i = 0; i < prevLvlHashes.length; i = i + 2, j++) { // If there are at least two elements remaining. if (prevLvlHashes.length - i > 1) { // Calculate a digest of the concatenated nodes. md.reset(); md.update(prevLvlHashes[i]); md.update(prevLvlHashes[i + 1]); currLvlHashes[j] = md.digest(); } else { // Take care of the remaining odd chunk currLvlHashes[j] = prevLvlHashes[i]; } } prevLvlHashes = currLvlHashes; } return prevLvlHashes[0]; } /** * Returns the hexadecimal representation of the input byte array */ public static String toHex(byte[] data) { StringBuilder sb = new StringBuilder(data.length * 2); for (byte datum : data) { String hex = Integer.toHexString(datum & 0xFF); if (hex.length() == 1) { // Append leading zero. sb.append("0"); } sb.append(hex); } return sb.toString().toLowerCase(); } }
  • 有关API详细信息,请参阅 “Amazon SDK for Java 2.x API参考 UploadArchive” 中的。