解冻归档、冷归档以及深度冷归档Object_对象存储(OSS)-阿里云帮助中心

如果未开启归档直读，归档类型的Object需要解冻后才能读取。冷归档、深度冷归档不支持开启直读，冷归档、深度冷归档类型的Object需要解冻后才能读取。归档类型Object完成解冻通常需要数分钟。冷归档类型Object完成解冻通常需要数小时。深度冷归档类型Object完成解冻通常需要12～48小时。解冻时间请以实际为准。本文介绍如何解冻归档、冷归档、深度冷归档类型的Object。

注意事项

仅归档、冷归档以及深度冷归档类型的Object支持调用RestoreObject方法。
本文以华东1（杭州）外网Endpoint为例。如果您希望通过与OSS同地域的其他阿里云产品访问OSS，请使用内网Endpoint。关于OSS支持的Region与Endpoint的对应关系，请参见访问域名和数据中心。
本文以从环境变量读取访问凭证为例。如何配置访问凭证，请参见 Java配置访问凭证。
本文以OSS域名新建OSSClient为例。如果您希望通过自定义域名、STS等方式新建OSSClient，请参见新建OSSClient 。
要解冻文件，您必须有 oss:RestoreObject 权限。具体操作，请参见为RAM用户授权自定义的权限策略。

解冻归档Object

以下代码用于解冻归档Object：

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
public class Demo {
    public static void main(String[] args) throws Exception {
        // Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // 填写Bucket名称，例如examplebucket。
        String bucketName = "examplebucket";
        // 填写不包含Bucket名称在内的归档类型Object的完整路径。
        String objectName = "exampledir/object";
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);
        try {
            ObjectMetadata objectMetadata = ossClient.getObjectMetadata(bucketName, objectName);
            // 校验Object是否为归档类型Object。
            StorageClass storageClass = objectMetadata.getObjectStorageClass();
            if (storageClass == StorageClass.Archive) {
                // 解冻Object。
                ossClient.restoreObject(bucketName, objectName);
                // 等待解冻完成。
                    Thread.sleep(1000);
                    objectMetadata = ossClient.getObjectMetadata(bucketName, objectName);
                } while (!objectMetadata.isRestoreCompleted());
            // 获取解冻Object。
            OSSObject ossObject = ossClient.getObject(bucketName, objectName);
            ossObject.getObjectContent().close();
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
}

解冻冷归档Object

以下代码用于解冻冷归档Object：

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
public class Demo {
    public static void main(String[] args) throws Exception {
        // Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // 填写Bucket名称，例如examplebucket。
        String bucketName = "examplebucket";
        // 填写不包含Bucket名称在内的冷归档类型Object的完整路径。
        String objectName = "exampledir/object";
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);
        try {            
            // 设置解冻冷归档Object的优先级。
            // RestoreTier.RESTORE_TIER_EXPEDITED 表示1小时内完成解冻。
            // RestoreTier.RESTORE_TIER_STANDARD 表示2~5小时内完成解冻。
            // RestoreTier.RESTORE_TIER_BULK 表示5~12小时内完成解冻。
            RestoreJobParameters jobParameters = new RestoreJobParameters(RestoreTier.RESTORE_TIER_EXPEDITED);
            // 配置解冻参数，以设置5小时内解冻完成，解冻状态保持2天为例。
            // 第一个参数表示保持解冻状态的天数，默认是1天，此参数适用于解冻Archive（归档）与ColdArchive（冷归档）类型Object。
            // 第二个参数jobParameters表示解冻优先级，只适用于解冻ColdArchive类型Object。
            RestoreConfiguration configuration = new RestoreConfiguration(2, jobParameters);
            // 发起解冻请求。
            ossClient.restoreObject(bucketName, objectName, configuration);
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
}

解冻深度冷归档Object

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
public class Demo {
    public static void main(String[] args) throws Exception {
        // Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // 填写Bucket名称，例如examplebucket。
        String bucketName = "examplebucket";
        // 填写不包含Bucket名称在内的深度冷归档类型Object的完整路径。
        String objectName = "exampledir/object";
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);
        try {          
            // 配置解冻优先级。本代码示例以RESTORE_TIER_STANDARD为例。
            // RestoreTier.RESTORE_TIER_EXPEDITED: 12个小时之内解冻完成。            
            // RestoreTier.RESTORE_TIER_STANDARD: 48小时之内解冻完成。
            RestoreJobParameters jobParameters = new RestoreJobParameters(RestoreTier.RESTORE_TIER_STANDARD);
            // 配置解冻状态持续时间，默认为1天。本代码示例以解冻状态持续时间为2天为例。
            RestoreConfiguration configuration = new RestoreConfiguration(2, jobParameters);
            // 发起解冻请求。
            ossClient.restoreObject(bucketName, objectName, configuration);
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
}

Java解冻文件

注意事项

解冻归档Object

解冻冷归档Object

解冻深度冷归档Object

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