Object Storage Service:オブジェクトの一覧表示

使用上の注意

• このトピックでは、中国 (杭州) リージョンのパブリックエンドポイントを使用します。 OSSと同じリージョンにある他のAlibaba CloudサービスからOSSにアクセスする場合は、内部エンドポイントを使用します。 OSSリージョンとエンドポイントの詳細については、「リージョン、エンドポイント、オープンポート」をご参照ください。

• このトピックでは、アクセス資格情報は環境変数から取得します。 アクセス資格情報の設定方法の詳細については、「アクセス資格情報の設定」をご参照ください。

• このトピックでは、OSSエンドポイントを使用してOSSClientインスタンスを作成します。 カスタムドメイン名またはSecurity Token Service (STS) を使用してOSSClientインスタンスを作成する場合は、「OSSClientインスタンスの作成」をご参照ください。

• オブジェクトを一覧表示するには、oss:ListObjectVersions権限が必要です。 詳細については、「RAMユーザーへのカスタムポリシーのアタッチ」をご参照ください。

バケット内の全オブジェクトのバージョン一覧表示

次のコードでは、バケット内の削除マーカーを含むすべてのオブジェクトのバージョンを一覧表示する方法の例を示します。

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 {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";
        // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to cn-hangzhou.
        String region = "cn-hangzhou";

        // Create an OSSClient instance. 
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();

        try {
            // List the versions of all objects, including delete markers in the bucket. 
            String nextKeyMarker = null;
            String nextVersionMarker = null;
            VersionListing versionListing = null;
            do {
                ListVersionsRequest listVersionsRequest = new ListVersionsRequest()
                        .withBucketName(bucketName)
                        .withKeyMarker(nextKeyMarker)
                        .withVersionIdMarker(nextVersionMarker);

                versionListing = ossClient.listVersions(listVersionsRequest);
                for (OSSVersionSummary ossVersion : versionListing.getVersionSummaries()) {
                    System.out.println("key name: " + ossVersion.getKey());
                    System.out.println("versionid: " + ossVersion.getVersionId());
                    System.out.println("Is latest: " + ossVersion.isLatest());
                    System.out.println("Is delete marker: " + ossVersion.isDeleteMarker());
                }

                nextKeyMarker = versionListing.getNextKeyMarker();
                nextVersionMarker = versionListing.getNextVersionIdMarker();
            } while (versionListing.isTruncated());
        } 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();
            }
        }
    }
}

名前に特定のプレフィックスが含まれるオブジェクトのバージョンを一覧表示する

次のサンプルコードでは、名前に特定のプレフィックスが含まれているオブジェクトのバージョンを一覧表示する方法の例を示します。

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.internal.OSSConstants;
import com.aliyun.oss.model.*;

public class Demo {
    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // List the versions of objects whose names contain the "test-" prefix. 
            String prefix = "test-";
            String nextKeyMarker = null;
            String nextVersionMarker = null;
            VersionListing versionListing = null;
            do {
                ListVersionsRequest listVersionsRequest = new ListVersionsRequest()
                        .withBucketName(bucketName)
                        .withKeyMarker(nextKeyMarker)
                        .withVersionIdMarker(nextVersionMarker)
                        .withEncodingType(OSSConstants.URL_ENCODING)
                        .withPrefix(prefix);

                versionListing = ossClient.listVersions(listVersionsRequest);
                // Display the version IDs of the objects. 
                for (OSSVersionSummary ossVersion : versionListing.getVersionSummaries()) {
                    System.out.println("key name: " + ossVersion.getKey());
                    System.out.println("versionid: " + ossVersion.getVersionId());
                    System.out.println("Is latest: " + ossVersion.isLatest());
                    System.out.println("Is delete marker: " + ossVersion.isDeleteMarker());
                }

                nextKeyMarker = versionListing.getNextKeyMarker();
                nextVersionMarker = versionListing.getNextVersionIdMarker();
            } while (versionListing.isTruncated());
        } 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();
            }
        }
    }
}

特定の数のオブジェクトのバージョンを一覧表示する

次のサンプルコードは、特定の数のオブジェクトのバージョンを一覧表示する方法の例を示しています。

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 {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // Specify that up to 200 versions can be returned. 
            ListVersionsRequest listVersionsRequest = new ListVersionsRequest()
                    .withBucketName(bucketName)
                    .withMaxResults(200);

            VersionListing versionListing = ossClient.listVersions(listVersionsRequest);
            for (OSSVersionSummary ossVersion : versionListing.getVersionSummaries()) {
                System.out.println("key name: " + ossVersion.getKey());
                // If versioning is not enabled for the bucket, the version IDs of the listed objects are none. 
                System.out.println("versionid: " + ossVersion.getVersionId());
                System.out.println("Is latest: " + ossVersion.isLatest());
                System.out.println("Is delete marker: " + ossVersion.isDeleteMarker());
            }
        } 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();
            }
        }
    }
}

すべてのオブジェクトのバージョンをページごとに一覧表示する

次のサンプルコードでは、すべてのオブジェクトのバージョンをページごとに一覧表示する方法の例を示します。

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 {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";
        // Specify that up to 200 versions are listed on each page. 
        int maxKeys = 200;

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // List the versions of all objects in the bucket by page. 
            String nextKeyMarker = null;
            String nextVersionMarker = null;
            VersionListing versionListing = null;
            do {
                ListVersionsRequest listVersionsRequest = new ListVersionsRequest()
                        .withBucketName(bucketName)
                        .withKeyMarker(nextKeyMarker)
                        .withMaxResults(maxKeys)
                        .withVersionIdMarker(nextVersionMarker);

                versionListing = ossClient.listVersions(listVersionsRequest);
                for (OSSVersionSummary ossVersion : versionListing.getVersionSummaries()) {
                    System.out.println("key name: " + ossVersion.getKey());
                    System.out.println("versionid: " + ossVersion.getVersionId());
                    System.out.println("Is latest: " + ossVersion.isLatest());
                    System.out.println("Is delete marker: " + ossVersion.isDeleteMarker());
                }

                nextKeyMarker = versionListing.getNextKeyMarker();
                nextVersionMarker = versionListing.getNextVersionIdMarker();
            } while (versionListing.isTruncated());
        } 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();
            }
        }
    }
}

名前に特殊文字が含まれるオブジェクトのバージョンを一覧表示する

オブジェクトの名前に次のいずれかの特殊文字が含まれている場合、オブジェクトを送信する前にオブジェクト名をURLエンコードする必要があります。

• 一重引用符 (')

• 二重引用符 (")

• アンパサンド (&)

• アングルブラケット (<>)

• 一時停止マーカー (、)

• 漢字、平仮名、片仮名

次のサンプルコードでは、名前に特殊文字が含まれるオブジェクトのバージョンを一覧表示する方法の例を示します。

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.internal.OSSConstants;
import com.aliyun.oss.model.*;

public class Demo {
    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // Specify that the object names in the response are URL-encoded. 
            String nextKeyMarker = null;
            String nextVersionMarker = null;
            VersionListing versionListing = null;
            do {
                ListVersionsRequest listVersionsRequest = new ListVersionsRequest()
                        .withBucketName(bucketName)
                        .withKeyMarker(nextKeyMarker)
                        .withVersionIdMarker(nextVersionMarker)
                        .withEncodingType(OSSConstants.URL_ENCODING);

                versionListing = ossClient.listVersions(listVersionsRequest);
                // Display the version IDs of the objects. 
                for (OSSVersionSummary ossVersion : versionListing.getVersionSummaries()) {
                    System.out.println("key name: " + ossVersion.getKey());
                    System.out.println("versionid: " + ossVersion.getVersionId());
                    System.out.println("Is latest: " + ossVersion.isLatest());
                    System.out.println("Is delete marker: " + ossVersion.isDeleteMarker());
                }

                nextKeyMarker = versionListing.getNextKeyMarker();
                nextVersionMarker = versionListing.getNextVersionIdMarker();
            } while (versionListing.isTruncated());
        } 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();
            }
        }
    }
}

ディレクトリ内のオブジェクトの一覧表示

OSSはフラット構造を使用してオブジェクトを格納します。 ディレクトリは、名前がスラッシュ (/) で終わるゼロバイトのオブジェクトです。 このオブジェクトをアップロードおよびダウンロードできます。 デフォルトでは、名前がスラッシュ (/) で終わるオブジェクトは、OSSコンソールにフォルダーとして表示されます。

ディレクトリごとにオブジェクトを一覧表示するには、リクエストに区切り文字とプレフィックスパラメーターを指定できます。

• リクエストでプレフィックスをディレクトリ名に設定すると、プレフィックスを含む名前のオブジェクトとサブディレクトリが一覧表示されます。

• リクエストでプレフィックスを指定し、区切り文字をスラッシュ (/) に設定すると、ディレクトリ内で指定されたプレフィックスで始まる名前のオブジェクトとサブディレクトリが一覧表示されます。 各サブディレクトリは、CommonPrefixesで単一の結果要素としてリストされます。 これらのサブディレクトリ内のオブジェクトおよびディレクトリはリストされません。

たとえば、oss.jpg、fun/test.jpg、fun/movie/001.avi、fun/movie/007.aviの4つのオブジェクトがバケットに格納されます。 ディレクトリ区切り文字としてスラッシュ (/) を指定します。 次の例では、シミュレートされたディレクトリにオブジェクトを一覧表示します。

• バケットのルートディレクトリにあるオブジェクトのバージョンを一覧表示する

  次のサンプルコードは、バケットのルートディレクトリにあるオブジェクトのバージョンを一覧表示する方法の例を示しています。

  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.internal.OSSConstants;
  import com.aliyun.oss.model.*;
  
  public class Demo {
      public static void main(String[] args) throws Exception {
          // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
          String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
          // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
          EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
          // Specify the name of the bucket. Example: examplebucket. 
          String bucketName = "examplebucket";
  
          // Create an OSSClient instance. 
          OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);
  
          try {
              // Set the delimiter parameter to a forward slash (/) to list the versions of objects and the names of subdirectories in the root directory. 
              String delimiter = "/";
              String nextKeyMarker = null;
              String nextVersionMarker = null;
              VersionListing versionListing = null;
              do {
                  ListVersionsRequest listVersionsRequest = new ListVersionsRequest()
                          .withBucketName(bucketName)
                          .withKeyMarker(nextKeyMarker)
                          .withVersionIdMarker(nextVersionMarker)
                          .withEncodingType(OSSConstants.URL_ENCODING)
                          .withDelimiter(delimiter);
  
                  versionListing = ossClient.listVersions(listVersionsRequest);
                  // Display the version IDs of the objects. 
                  for (OSSVersionSummary ossVersion : versionListing.getVersionSummaries()) {
                      System.out.println("key name: " + ossVersion.getKey());
                      System.out.println("versionid: " + ossVersion.getVersionId());
                      System.out.println("Is latest: " + ossVersion.isLatest());
                      System.out.println("Is delete marker: " + ossVersion.isDeleteMarker());
                  }
                  // Display the names of subdirectories whose names end with a forward slash (/) in the root directory. 
                  for (String commonPrefix : versionListing.getCommonPrefixes()) {
                      System.out.println("commonPrefix: " + commonPrefix);
                  }
  
                  nextKeyMarker = versionListing.getNextKeyMarker();
                  nextVersionMarker = versionListing.getNextVersionIdMarker();
              } while (versionListing.isTruncated());
          } 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();
              }
          }
      }
  }

  レスポンスの例

  key name: oss.jpg
  versionid: CAEQEhiBgMCw8Y7FqBciIGIzMDE3MTEzOWRiMDRmZmFhMmRlMjljZWI0MWU4****
  Is latest: true
  Is delete marker: false
  
  commonPrefix: fun/

• 特定のディレクトリ内のオブジェクトとサブディレクトリの一覧表示

  次のサンプルコードは、特定のディレクトリ内のオブジェクトとサブディレクトリを一覧表示する方法の例を示しています。

  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.internal.OSSConstants;
  import com.aliyun.oss.model.*;
  
  public class Demo {
      public static void main(String[] args) throws Exception {
          // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
          String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
          // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
          EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
          // Specify the name of the bucket. Example: examplebucket. 
          String bucketName = "examplebucket";
  
          // Create an OSSClient instance. 
          OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);
  
          try {
              // Configure the prefix parameter to list all objects and subdirectories in the fun directory. Set the delimiter parameter to a forward slash (/). 
              String prefix = "fun/";
              String delimiter = "/";
              String nextKeyMarker = null;
              String nextVersionMarker = null;
              VersionListing versionListing = null;
              do {
                  ListVersionsRequest listVersionsRequest = new ListVersionsRequest()
                          .withBucketName(bucketName)
                          .withKeyMarker(nextKeyMarker)
                          .withVersionIdMarker(nextVersionMarker)
                          .withEncodingType(OSSConstants.URL_ENCODING)
                          .withDelimiter(delimiter)
                          .withPrefix(prefix);
  
                  versionListing = ossClient.listVersions(listVersionsRequest);
                  // Display the version IDs of the objects. 
                  for (OSSVersionSummary ossVersion : versionListing.getVersionSummaries()) {
                      System.out.println("key name: " + ossVersion.getKey());
                      System.out.println("versionid: " + ossVersion.getVersionId());
                      System.out.println("Is latest: " + ossVersion.isLatest());
                      System.out.println("Is delete marker: " + ossVersion.isDeleteMarker());
                  }
                  // Display the names of the subdirectories in the fun directory. 
                  for (String commonPrefix : versionListing.getCommonPrefixes()) {
                      System.out.println("commonPrefix: " + commonPrefix);
                  }
  
                  nextKeyMarker = versionListing.getNextKeyMarker();
                  nextVersionMarker = versionListing.getNextVersionIdMarker();
              } while (versionListing.isTruncated());
          } 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();
              }
          }
      }
  }

  レスポンスの例

  key name: fun/test.jpg
  versionid: CAEQEhiBgIC48Y7FqBciIDU4NjAzMjczMTY5NDRjYmVhNGY4NTM2YTdjY2Ji****
  Is latest: true
  Is delete marker: false
  
  commonPrefix: fun/movie/