文档 AWS SDK 示例 GitHub 存储库中还有更多 [S AWS DK 示例](https://github.com/awsdocs/aws-doc-sdk-examples)。
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。
# 使用适用于 Java 的 SDK 2.x 的 Amazon Glacier 示例
以下代码示例向您展示了如何在 Amazon Glacier 中 AWS SDK for Java 2.x 使用来执行操作和实现常见场景。
*操作*是大型程序的代码摘录，必须在上下文中运行。您可以通过操作了解如何调用单个服务函数，还可以通过函数相关场景的上下文查看操作。
每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。
**Topics**
+ [操作](#actions)
## 操作
### `CreateVault`
以下代码示例演示了如何使用 `CreateVault`。
**适用于 Java 的 SDK 2.x**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/glacier#code-examples)中查找完整示例，了解如何进行设置和运行。
```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.CreateVaultRequest;
import software.amazon.awssdk.services.glacier.model.CreateVaultResponse;
import software.amazon.awssdk.services.glacier.model.GlacierException;
/**
* 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 CreateVault {
public static void main(String[] args) {
final String usage = """
Usage:
Where:
vaultName - The name of the vault to create.
""";
if (args.length != 1) {
System.out.println(usage);
System.exit(1);
}
String vaultName = args[0];
GlacierClient glacier = GlacierClient.builder()
.region(Region.US_EAST_1)
.build();
createGlacierVault(glacier, vaultName);
glacier.close();
}
public static void createGlacierVault(GlacierClient glacier, String vaultName) {
try {
CreateVaultRequest vaultRequest = CreateVaultRequest.builder()
.vaultName(vaultName)
.build();
CreateVaultResponse createVaultResult = glacier.createVault(vaultRequest);
System.out.println("The URI of the new vault is " + createVaultResult.location());
} catch (GlacierException e) {
System.err.println(e.awsErrorDetails().errorMessage());
System.exit(1);
}
}
}
```
+ 有关 API 的详细信息，请参阅 *AWS SDK for Java 2.x API 参考[CreateVault](https://docs.aws.amazon.com/goto/SdkForJavaV2/glacier-2012-06-01/CreateVault)*中的。
### `DeleteArchive`
以下代码示例演示了如何使用 `DeleteArchive`。
**适用于 Java 的 SDK 2.x**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/glacier#code-examples)中查找完整示例，了解如何进行设置和运行。
```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.DeleteArchiveRequest;
import software.amazon.awssdk.services.glacier.model.GlacierException;
/**
* 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 DeleteArchive {
public static void main(String[] args) {
final String usage = """
Usage:
Where:
vaultName - The name of the vault that contains the archive to delete.
accountId - The account ID value.
archiveId - The archive ID value.
""";
if (args.length != 3) {
System.out.println(usage);
System.exit(1);
}
String vaultName = args[0];
String accountId = args[1];
String archiveId = args[2];
GlacierClient glacier = GlacierClient.builder()
.region(Region.US_EAST_1)
.build();
deleteGlacierArchive(glacier, vaultName, accountId, archiveId);
glacier.close();
}
public static void deleteGlacierArchive(GlacierClient glacier, String vaultName, String accountId,
String archiveId) {
try {
DeleteArchiveRequest delArcRequest = DeleteArchiveRequest.builder()
.vaultName(vaultName)
.accountId(accountId)
.archiveId(archiveId)
.build();
glacier.deleteArchive(delArcRequest);
System.out.println("The archive was deleted.");
} catch (GlacierException e) {
System.err.println(e.awsErrorDetails().errorMessage());
System.exit(1);
}
}
}
```
+ 有关 API 的详细信息，请参阅 *AWS SDK for Java 2.x API 参考[DeleteArchive](https://docs.aws.amazon.com/goto/SdkForJavaV2/glacier-2012-06-01/DeleteArchive)*中的。
### `DeleteVault`
以下代码示例演示了如何使用 `DeleteVault`。
**适用于 Java 的 SDK 2.x**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/glacier#code-examples)中查找完整示例，了解如何进行设置和运行。
```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.DeleteVaultRequest;
import software.amazon.awssdk.services.glacier.model.GlacierException;
/**
* 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 DeleteVault {
public static void main(String[] args) {
final String usage = """
Usage:
Where:
vaultName - The name of the vault to delete.\s
""";
if (args.length != 1) {
System.out.println(usage);
System.exit(1);
}
String vaultName = args[0];
GlacierClient glacier = GlacierClient.builder()
.region(Region.US_EAST_1)
.build();
deleteGlacierVault(glacier, vaultName);
glacier.close();
}
public static void deleteGlacierVault(GlacierClient glacier, String vaultName) {
try {
DeleteVaultRequest delVaultRequest = DeleteVaultRequest.builder()
.vaultName(vaultName)
.build();
glacier.deleteVault(delVaultRequest);
System.out.println("The vault was deleted!");
} catch (GlacierException e) {
System.err.println(e.awsErrorDetails().errorMessage());
System.exit(1);
}
}
}
```
+ 有关 API 的详细信息，请参阅 *AWS SDK for Java 2.x API 参考[DeleteVault](https://docs.aws.amazon.com/goto/SdkForJavaV2/glacier-2012-06-01/DeleteVault)*中的。
### `InitiateJob`
以下代码示例演示了如何使用 `InitiateJob`。
**适用于 Java 的 SDK 2.x**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/glacier#code-examples)中查找完整示例，了解如何进行设置和运行。
检索文件库清单。
```
import software.amazon.awssdk.core.ResponseBytes;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.JobParameters;
import software.amazon.awssdk.services.glacier.model.InitiateJobResponse;
import software.amazon.awssdk.services.glacier.model.GlacierException;
import software.amazon.awssdk.services.glacier.model.InitiateJobRequest;
import software.amazon.awssdk.services.glacier.model.DescribeJobRequest;
import software.amazon.awssdk.services.glacier.model.DescribeJobResponse;
import software.amazon.awssdk.services.glacier.model.GetJobOutputRequest;
import software.amazon.awssdk.services.glacier.model.GetJobOutputResponse;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/**
* 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 ArchiveDownload {
public static void main(String[] args) {
final String usage = """
Usage:
Where:
vaultName - The name of the vault.
accountId - The account ID value.
path - The path where the file is written to.
""";
if (args.length != 3) {
System.out.println(usage);
System.exit(1);
}
String vaultName = args[0];
String accountId = args[1];
String path = args[2];
GlacierClient glacier = GlacierClient.builder()
.region(Region.US_EAST_1)
.build();
String jobNum = createJob(glacier, vaultName, accountId);
checkJob(glacier, jobNum, vaultName, accountId, path);
glacier.close();
}
public static String createJob(GlacierClient glacier, String vaultName, String accountId) {
try {
JobParameters job = JobParameters.builder()
.type("inventory-retrieval")
.build();
InitiateJobRequest initJob = InitiateJobRequest.builder()
.jobParameters(job)
.accountId(accountId)
.vaultName(vaultName)
.build();
InitiateJobResponse response = glacier.initiateJob(initJob);
System.out.println("The job ID is: " + response.jobId());
System.out.println("The relative URI path of the job is: " + response.location());
return response.jobId();
} catch (GlacierException e) {
System.err.println(e.awsErrorDetails().errorMessage());
System.exit(1);
}
return "";
}
// Poll S3 Glacier = Polling a Job may take 4-6 hours according to the
// Documentation.
public static void checkJob(GlacierClient glacier, String jobId, String name, String account, String path) {
try {
boolean finished = false;
String jobStatus;
int yy = 0;
while (!finished) {
DescribeJobRequest jobRequest = DescribeJobRequest.builder()
.jobId(jobId)
.accountId(account)
.vaultName(name)
.build();
DescribeJobResponse response = glacier.describeJob(jobRequest);
jobStatus = response.statusCodeAsString();
if (jobStatus.compareTo("Succeeded") == 0)
finished = true;
else {
System.out.println(yy + " status is: " + jobStatus);
Thread.sleep(1000);
}
yy++;
}
System.out.println("Job has Succeeded");
GetJobOutputRequest jobOutputRequest = GetJobOutputRequest.builder()
.jobId(jobId)
.vaultName(name)
.accountId(account)
.build();
ResponseBytes objectBytes = glacier.getJobOutputAsBytes(jobOutputRequest);
// Write the data to a local file.
byte[] data = objectBytes.asByteArray();
File myFile = new File(path);
OutputStream os = new FileOutputStream(myFile);
os.write(data);
System.out.println("Successfully obtained bytes from a Glacier vault");
os.close();
} catch (GlacierException | InterruptedException | IOException e) {
System.out.println(e.getMessage());
System.exit(1);
}
}
}
```
+ 有关 API 的详细信息，请参阅 *AWS SDK for Java 2.x API 参考[InitiateJob](https://docs.aws.amazon.com/goto/SdkForJavaV2/glacier-2012-06-01/InitiateJob)*中的。
### `ListVaults`
以下代码示例演示了如何使用 `ListVaults`。
**适用于 Java 的 SDK 2.x**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/glacier#code-examples)中查找完整示例，了解如何进行设置和运行。
```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.glacier.model.ListVaultsRequest;
import software.amazon.awssdk.services.glacier.model.ListVaultsResponse;
import software.amazon.awssdk.services.glacier.GlacierClient;
import software.amazon.awssdk.services.glacier.model.DescribeVaultOutput;
import software.amazon.awssdk.services.glacier.model.GlacierException;
import java.util.List;
/**
* 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 ListVaults {
public static void main(String[] args) {
GlacierClient glacier = GlacierClient.builder()
.region(Region.US_EAST_1)
.build();
listAllVault(glacier);
glacier.close();
}
public static void listAllVault(GlacierClient glacier) {
boolean listComplete = false;
String newMarker = null;
int totalVaults = 0;
System.out.println("Your Amazon Glacier vaults:");
try {
while (!listComplete) {
ListVaultsResponse response = null;
if (newMarker != null) {
ListVaultsRequest request = ListVaultsRequest.builder()
.marker(newMarker)
.build();
response = glacier.listVaults(request);
} else {
ListVaultsRequest request = ListVaultsRequest.builder()
.build();
response = glacier.listVaults(request);
}
List vaultList = response.vaultList();
for (DescribeVaultOutput v : vaultList) {
totalVaults += 1;
System.out.println("* " + v.vaultName());
}
// Check for further results.
newMarker = response.marker();
if (newMarker == null) {
listComplete = true;
}
}
if (totalVaults == 0) {
System.out.println("No vaults found.");
}
} catch (GlacierException e) {
System.err.println(e.awsErrorDetails().errorMessage());
System.exit(1);
}
}
}
```
+ 有关 API 的详细信息，请参阅 *AWS SDK for Java 2.x API 参考[ListVaults](https://docs.aws.amazon.com/goto/SdkForJavaV2/glacier-2012-06-01/ListVaults)*中的。
### `UploadArchive`
以下代码示例演示了如何使用 `UploadArchive`。
**适用于 Java 的 SDK 2.x**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/glacier#code-examples)中查找完整示例，了解如何进行设置和运行。
```
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: \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 的详细信息，请参阅 *AWS SDK for Java 2.x API 参考[UploadArchive](https://docs.aws.amazon.com/goto/SdkForJavaV2/glacier-2012-06-01/UploadArchive)*中的。