使用 Amazon SDK 创建 Amazon S3 Glaci 文件库的分段上传 - Simple Storage Service(Amazon S3)Glacier
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使用 Amazon SDK 创建 Amazon S3 Glaci 文件库的分段上传

以下代码示例显示如何创建 Amazon S3 文件库的分段上传。

JavaScript
SDK for JavaScript (v2)
注意

在 GitHub 上查看更多内容。在 Amazon 代码示例存储库 中查找完整示例,了解如何进行设置和运行。

创建 Buffer 对象的 1 兆字节区块的分段上传。

// Create a new service object and some supporting variables var glacier = new AWS.Glacier({apiVersion: '2012-06-01'}), vaultName = 'YOUR_VAULT_NAME', buffer = new Buffer(2.5 * 1024 * 1024), // 2.5MB buffer partSize = 1024 * 1024, // 1MB chunks, numPartsLeft = Math.ceil(buffer.length / partSize), startTime = new Date(), params = {vaultName: vaultName, partSize: partSize.toString()}; // Compute the complete SHA-256 tree hash so we can pass it // to completeMultipartUpload request at the end var treeHash = glacier.computeChecksums(buffer).treeHash; // Initiate the multipart upload console.log('Initiating upload to', vaultName); // Call Glacier to initiate the upload. glacier.initiateMultipartUpload(params, function (mpErr, multipart) { if (mpErr) { console.log('Error!', mpErr.stack); return; } console.log("Got upload ID", multipart.uploadId); // Grab each partSize chunk and upload it as a part for (var i = 0; i < buffer.length; i += partSize) { var end = Math.min(i + partSize, buffer.length), partParams = { vaultName: vaultName, uploadId: multipart.uploadId, range: 'bytes ' + i + '-' + (end-1) + '/*', body: buffer.slice(i, end) }; // Send a single part console.log('Uploading part', i, '=', partParams.range); glacier.uploadMultipartPart(partParams, function(multiErr, mData) { if (multiErr) return; console.log("Completed part", this.request.params.range); if (--numPartsLeft > 0) return; // complete only when all parts uploaded var doneParams = { vaultName: vaultName, uploadId: multipart.uploadId, archiveSize: buffer.length.toString(), checksum: treeHash // the computed tree hash }; console.log("Completing upload..."); glacier.completeMultipartUpload(doneParams, function(err, data) { if (err) { console.log("An error occurred while uploading the archive"); console.log(err); } else { var delta = (new Date() - startTime) / 1000; console.log('Completed upload in', delta, 'seconds'); console.log('Archive ID:', data.archiveId); console.log('Checksum: ', data.checksum); } }); }); } });

有关 Amazon SDK 开发人员指南和代码示例的完整列表,请参阅 将 S3 Glacier 与 Amazon SDK 结合使用。本主题还包括有关入门的信息以及有关先前的软件开发工具包版本的详细信息。