与 AWS SDK或`CopyObject`一起使用 CLI

以下代码示例演示如何使用 CopyObject。

操作示例是大型程序的代码摘录，必须在上下文中运行。您可以在以下代码示例中查看此操作的上下文：

.NET

AWS SDK for .NET

注意

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


    using System;
    using System.Threading.Tasks;
    using Amazon.S3;
    using Amazon.S3.Model;

    public class CopyObject
    {
        public static async Task Main()
        {
            // Specify the AWS Region where your buckets are located if it is
            // different from the AWS Region of the default user.
            IAmazonS3 s3Client = new AmazonS3Client();

            // Remember to change these values to refer to your Amazon S3 objects.
            string sourceBucketName = "amzn-s3-demo-bucket1";
            string destinationBucketName = "amzn-s3-demo-bucket2";
            string sourceObjectKey = "testfile.txt";
            string destinationObjectKey = "testfilecopy.txt";

            Console.WriteLine($"Copying {sourceObjectKey} from {sourceBucketName} to ");
            Console.WriteLine($"{destinationBucketName} as {destinationObjectKey}");

            var response = await CopyingObjectAsync(
                s3Client,
                sourceObjectKey,
                destinationObjectKey,
                sourceBucketName,
                destinationBucketName);

            if (response.HttpStatusCode == System.Net.HttpStatusCode.OK)
            {
                Console.WriteLine("\nCopy complete.");
            }
        }

        /// <summary>
        /// This method calls the AWS SDK for .NET to copy an
        /// object from one Amazon S3 bucket to another.
        /// </summary>
        /// <param name="client">The Amazon S3 client object.</param>
        /// <param name="sourceKey">The name of the object to be copied.</param>
        /// <param name="destinationKey">The name under which to save the copy.</param>
        /// <param name="sourceBucketName">The name of the Amazon S3 bucket
        /// where the file is located now.</param>
        /// <param name="destinationBucketName">The name of the Amazon S3
        /// bucket where the copy should be saved.</param>
        /// <returns>Returns a CopyObjectResponse object with the results from
        /// the async call.</returns>
        public static async Task<CopyObjectResponse> CopyingObjectAsync(
            IAmazonS3 client,
            string sourceKey,
            string destinationKey,
            string sourceBucketName,
            string destinationBucketName)
        {
            var response = new CopyObjectResponse();
            try
            {
                var request = new CopyObjectRequest
                {
                    SourceBucket = sourceBucketName,
                    SourceKey = sourceKey,
                    DestinationBucket = destinationBucketName,
                    DestinationKey = destinationKey,
                };
                response = await client.CopyObjectAsync(request);
            }
            catch (AmazonS3Exception ex)
            {
                Console.WriteLine($"Error copying object: '{ex.Message}'");
            }

            return response;
        }
    }

有关API详细信息，请参阅 “AWS SDK for .NET API参考 CopyObject” 中的。

Bash

AWS CLI 使用 Bash 脚本

注意

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


###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function copy_item_in_bucket
#
# This function creates a copy of the specified file in the same bucket.
#
# Parameters:
#       $1 - The name of the bucket to copy the file from and to.
#       $2 - The key of the source file to copy.
#       $3 - The key of the destination file.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function copy_item_in_bucket() {
  local bucket_name=$1
  local source_key=$2
  local destination_key=$3
  local response

  response=$(aws s3api copy-object \
    --bucket "$bucket_name" \
    --copy-source "$bucket_name/$source_key" \
    --key "$destination_key")

  # shellcheck disable=SC2181
  if [[ $? -ne 0 ]]; then
    errecho "ERROR:  AWS reports s3api copy-object operation failed.\n$response"
    return 1
  fi
}

有关API详细信息，请参阅 “CopyObject AWS CLI命令参考”。

C++

SDK对于 C++

注意

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


bool AwsDoc::S3::copyObject(const Aws::String &objectKey, const Aws::String &fromBucket, const Aws::String &toBucket,
                            const Aws::S3::S3ClientConfiguration &clientConfig) {
    Aws::S3::S3Client client(clientConfig);
    Aws::S3::Model::CopyObjectRequest request;

    request.WithCopySource(fromBucket + "/" + objectKey)
            .WithKey(objectKey)
            .WithBucket(toBucket);

    Aws::S3::Model::CopyObjectOutcome outcome = client.CopyObject(request);
    if (!outcome.IsSuccess()) {
        const Aws::S3::S3Error &err = outcome.GetError();
        std::cerr << "Error: copyObject: " <<
                  err.GetExceptionName() << ": " << err.GetMessage() << std::endl;

    } else {
        std::cout << "Successfully copied " << objectKey << " from " << fromBucket <<
                  " to " << toBucket << "." << std::endl;
    }

    return outcome.IsSuccess();
}

有关API详细信息，请参阅 “AWS SDK for C++ API参考 CopyObject” 中的。

CLI

AWS CLI

以下命令将对象从 bucket-1 复制到 bucket-2：


aws s3api copy-object --copy-source bucket-1/test.txt --key test.txt --bucket bucket-2

输出：


{
    "CopyObjectResult": {
        "LastModified": "2015-11-10T01:07:25.000Z",
        "ETag": "\"589c8b79c230a6ecd5a7e1d040a9a030\""
    },
    "VersionId": "YdnYvTCVDqRRFA.NFJjy36p0hxifMlkA"
}

有关API详细信息，请参阅 “CopyObject AWS CLI命令参考”。

Go

SDK适用于 Go V2

注意

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



// BucketBasics encapsulates the Amazon Simple Storage Service (Amazon S3) actions
// used in the examples.
// It contains S3Client, an Amazon S3 service client that is used to perform bucket
// and object actions.
type BucketBasics struct {
	S3Client *s3.Client
}



// CopyToBucket copies an object in a bucket to another bucket.
func (basics BucketBasics) CopyToBucket(ctx context.Context, sourceBucket string, destinationBucket string, objectKey string) error {
	_, err := basics.S3Client.CopyObject(ctx, &s3.CopyObjectInput{
		Bucket:     aws.String(destinationBucket),
		CopySource: aws.String(fmt.Sprintf("%v/%v", sourceBucket, objectKey)),
		Key:        aws.String(objectKey),
	})
	if err != nil {
		log.Printf("Couldn't copy object from %v:%v to %v:%v. Here's why: %v\n",
			sourceBucket, objectKey, destinationBucket, objectKey, err)
	}
	return err
}

有关API详细信息，请参阅 “AWS SDK for Go API参考 CopyObject” 中的。

Java

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 AWS 代码示例存储库中进行设置和运行。

使用 S3Client 复制对象。



    /**
     * Asynchronously copies an object from one S3 bucket to another.
     *
     * @param fromBucket the name of the source S3 bucket
     * @param objectKey  the key (name) of the object to be copied
     * @param toBucket   the name of the destination S3 bucket
     * @return a {@link CompletableFuture} that completes with the copy result as a {@link String}
     * @throws RuntimeException if the URL could not be encoded or an S3 exception occurred during the copy
     */
    public CompletableFuture<String> copyBucketObjectAsync(String fromBucket, String objectKey, String toBucket) {
        CopyObjectRequest copyReq = CopyObjectRequest.builder()
            .sourceBucket(fromBucket)
            .sourceKey(objectKey)
            .destinationBucket(toBucket)
            .destinationKey(objectKey)
            .build();

        CompletableFuture<CopyObjectResponse> response = getAsyncClient().copyObject(copyReq);
        response.whenComplete((copyRes, ex) -> {
            if (copyRes != null) {
                logger.info("The " + objectKey + " was copied to " + toBucket);
            } else {
                throw new RuntimeException("An S3 exception occurred during copy", ex);
            }
        });

        return response.thenApply(CopyObjectResponse::copyObjectResult)
            .thenApply(Object::toString);
    }

使用 S3 TransferManager 将对象从一个存储桶复制到另一个存储桶。查看完整文件并进行测试。


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import software.amazon.awssdk.core.sync.RequestBody;
import software.amazon.awssdk.services.s3.model.CopyObjectRequest;
import software.amazon.awssdk.transfer.s3.S3TransferManager;
import software.amazon.awssdk.transfer.s3.model.CompletedCopy;
import software.amazon.awssdk.transfer.s3.model.Copy;
import software.amazon.awssdk.transfer.s3.model.CopyRequest;

import java.util.UUID;

    public String copyObject(S3TransferManager transferManager, String bucketName,
            String key, String destinationBucket, String destinationKey) {
        CopyObjectRequest copyObjectRequest = CopyObjectRequest.builder()
                .sourceBucket(bucketName)
                .sourceKey(key)
                .destinationBucket(destinationBucket)
                .destinationKey(destinationKey)
                .build();

        CopyRequest copyRequest = CopyRequest.builder()
                .copyObjectRequest(copyObjectRequest)
                .build();

        Copy copy = transferManager.copy(copyRequest);

        CompletedCopy completedCopy = copy.completionFuture().join();
        return completedCopy.response().copyObjectResult().eTag();
    }

有关API详细信息，请参阅 “AWS SDK for Java 2.x API参考 CopyObject” 中的。

JavaScript

SDK对于 JavaScript (v3)

注意

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

复制对象。


import {
  S3Client,
  CopyObjectCommand,
  ObjectNotInActiveTierError,
  waitUntilObjectExists,
} from "@aws-sdk/client-s3";

/**
 * Copy an S3 object from one bucket to another.
 *
 * @param {{
 *   sourceBucket: string,
 *   sourceKey: string,
 *   destinationBucket: string,
 *   destinationKey: string }} config
 */
export const main = async ({
  sourceBucket,
  sourceKey,
  destinationBucket,
  destinationKey,
}) => {
  const client = new S3Client({});

  try {
    await client.send(
      new CopyObjectCommand({
        CopySource: `${sourceBucket}/${sourceKey}`,
        Bucket: destinationBucket,
        Key: destinationKey,
      }),
    );
    await waitUntilObjectExists(
      { client },
      { Bucket: destinationBucket, Key: destinationKey },
    );
    console.log(
      `Successfully copied ${sourceBucket}/${sourceKey} to ${destinationBucket}/${destinationKey}`,
    );
  } catch (caught) {
    if (caught instanceof ObjectNotInActiveTierError) {
      console.error(
        `Could not copy ${sourceKey} from ${sourceBucket}. Object is not in the active tier.`,
      );
    } else {
      throw caught;
    }
  }
};

有关API详细信息，请参阅 “AWS SDK for JavaScript API参考 CopyObject” 中的。

Kotlin

SDK对于 Kotlin 来说

注意

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


suspend fun copyBucketObject(
    fromBucket: String,
    objectKey: String,
    toBucket: String,
) {
    var encodedUrl = ""
    try {
        encodedUrl = URLEncoder.encode("$fromBucket/$objectKey", StandardCharsets.UTF_8.toString())
    } catch (e: UnsupportedEncodingException) {
        println("URL could not be encoded: " + e.message)
    }

    val request =
        CopyObjectRequest {
            copySource = encodedUrl
            bucket = toBucket
            key = objectKey
        }
    S3Client { region = "us-east-1" }.use { s3 ->
        s3.copyObject(request)
    }
}

有关API详细信息，请参阅CopyObject中的 Kotlin AWS SDK API 参考。

PHP

SDK for PHP

注意

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

对象的简单副本。


        $s3client = new Aws\S3\S3Client(['region' => 'us-west-2']);

        try {
            $folder = "copied-folder";
            $this->s3client->copyObject([
                'Bucket' => $this->bucketName,
                'CopySource' => "$this->bucketName/$fileName",
                'Key' => "$folder/$fileName-copy",
            ]);
            echo "Copied $fileName to $folder/$fileName-copy.\n";
        } catch (Exception $exception) {
            echo "Failed to copy $fileName with error: " . $exception->getMessage();
            exit("Please fix error with object copying before continuing.");
        }

有关API详细信息，请参阅 “AWS SDK for PHP API参考 CopyObject” 中的。

PowerShell

用于 PowerShell

示例 1：此命令将对象“sample.txt”从存储桶“test-files”复制到同一个存储桶，但新键为“sample-copy.txt”。


Copy-S3Object -BucketName amzn-s3-demo-bucket -Key sample.txt -DestinationKey sample-copy.txt

示例 2：此命令将对象“sample.txt”从存储桶“test-files”复制到存储桶“backup-files”，键为“sample-copy.txt”。


Copy-S3Object -BucketName amzn-s3-demo-source-bucket -Key sample.txt -DestinationKey sample-copy.txt -DestinationBucket amzn-s3-demo-destination-bucket

示例 3：此命令将对象“sample.txt”从存储桶“test-files”下载到名为“local-sample.txt”的本地文件。


Copy-S3Object -BucketName amzn-s3-demo-bucket -Key sample.txt -LocalFile local-sample.txt

示例 4：将单个对象下载到指定的文件。下载的文件可以在 c:\downloads\data\archive.zip 中找到


Copy-S3Object -BucketName amzn-s3-demo-bucket -Key data/archive.zip -LocalFolder c:\downloads

示例 5：将与指定的键前缀匹配的所有对象下载到本地文件夹。相对键层次结构将作为子文件夹保留在总体下载位置中。


Copy-S3Object -BucketName amzn-s3-demo-bucket -KeyPrefix data -LocalFolder c:\downloads

有关API详细信息，请参阅 AWS Tools for PowerShell Cmdlet 参考CopyObject中的。

Python

SDK适用于 Python (Boto3)

注意

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


class ObjectWrapper:
    """Encapsulates S3 object actions."""

    def __init__(self, s3_object):
        """
        :param s3_object: A Boto3 Object resource. This is a high-level resource in Boto3
                          that wraps object actions in a class-like structure.
        """
        self.object = s3_object
        self.key = self.object.key


    def copy(self, dest_object):
        """
        Copies the object to another bucket.

        :param dest_object: The destination object initialized with a bucket and key.
                            This is a Boto3 Object resource.
        """
        try:
            dest_object.copy_from(
                CopySource={"Bucket": self.object.bucket_name, "Key": self.object.key}
            )
            dest_object.wait_until_exists()
            logger.info(
                "Copied object from %s:%s to %s:%s.",
                self.object.bucket_name,
                self.object.key,
                dest_object.bucket_name,
                dest_object.key,
            )
        except ClientError:
            logger.exception(
                "Couldn't copy object from %s/%s to %s/%s.",
                self.object.bucket_name,
                self.object.key,
                dest_object.bucket_name,
                dest_object.key,
            )
            raise

有关API详细信息，请参阅CopyObject中的 AWS SDKPython (Boto3) API 参考。

Ruby

SDK对于 Ruby

注意

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

复制对象。


require 'aws-sdk-s3'

# Wraps Amazon S3 object actions.
class ObjectCopyWrapper
  attr_reader :source_object

  # @param source_object [Aws::S3::Object] An existing Amazon S3 object. This is used as the source object for
  #                                        copy actions.
  def initialize(source_object)
    @source_object = source_object
  end

  # Copy the source object to the specified target bucket and rename it with the target key.
  #
  # @param target_bucket [Aws::S3::Bucket] An existing Amazon S3 bucket where the object is copied.
  # @param target_object_key [String] The key to give the copy of the object.
  # @return [Aws::S3::Object, nil] The copied object when successful; otherwise, nil.
  def copy_object(target_bucket, target_object_key)
    @source_object.copy_to(bucket: target_bucket.name, key: target_object_key)
    target_bucket.object(target_object_key)
  rescue Aws::Errors::ServiceError => e
    puts "Couldn't copy #{@source_object.key} to #{target_object_key}. Here's why: #{e.message}"
  end
end

# Example usage:
def run_demo
  source_bucket_name = "amzn-s3-demo-bucket1"
  source_key = "my-source-file.txt"
  target_bucket_name = "amzn-s3-demo-bucket2"
  target_key = "my-target-file.txt"

  source_bucket = Aws::S3::Bucket.new(source_bucket_name)
  wrapper = ObjectCopyWrapper.new(source_bucket.object(source_key))
  target_bucket = Aws::S3::Bucket.new(target_bucket_name)
  target_object = wrapper.copy_object(target_bucket, target_key)
  return unless target_object

  puts "Copied #{source_key} from #{source_bucket_name} to #{target_object.bucket_name}:#{target_object.key}."
end

run_demo if $PROGRAM_NAME == __FILE__

复制对象并向目标对象添加服务器端加密。


require 'aws-sdk-s3'

# Wraps Amazon S3 object actions.
class ObjectCopyEncryptWrapper
  attr_reader :source_object

  # @param source_object [Aws::S3::Object] An existing Amazon S3 object. This is used as the source object for
  #                                        copy actions.
  def initialize(source_object)
    @source_object = source_object
  end

  # Copy the source object to the specified target bucket, rename it with the target key, and encrypt it.
  #
  # @param target_bucket [Aws::S3::Bucket] An existing Amazon S3 bucket where the object is copied.
  # @param target_object_key [String] The key to give the copy of the object.
  # @return [Aws::S3::Object, nil] The copied object when successful; otherwise, nil.
  def copy_object(target_bucket, target_object_key, encryption)
    @source_object.copy_to(bucket: target_bucket.name, key: target_object_key, server_side_encryption: encryption)
    target_bucket.object(target_object_key)
  rescue Aws::Errors::ServiceError => e
    puts "Couldn't copy #{@source_object.key} to #{target_object_key}. Here's why: #{e.message}"
  end
end

# Example usage:
def run_demo
  source_bucket_name = "amzn-s3-demo-bucket1"
  source_key = "my-source-file.txt"
  target_bucket_name = "amzn-s3-demo-bucket2"
  target_key = "my-target-file.txt"
  target_encryption = "AES256"

  source_bucket = Aws::S3::Bucket.new(source_bucket_name)
  wrapper = ObjectCopyEncryptWrapper.new(source_bucket.object(source_key))
  target_bucket = Aws::S3::Bucket.new(target_bucket_name)
  target_object = wrapper.copy_object(target_bucket, target_key, target_encryption)
  return unless target_object

  puts "Copied #{source_key} from #{source_bucket_name} to #{target_object.bucket_name}:#{target_object.key} and "\
       "encrypted the target with #{target_object.server_side_encryption} encryption."
end

run_demo if $PROGRAM_NAME == __FILE__

有关API详细信息，请参阅 “AWS SDK for Ruby API参考 CopyObject” 中的。

Rust

SDK对于 Rust

注意

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


/// Copy an object from one bucket to another.
pub async fn copy_object(
    client: &aws_sdk_s3::Client,
    source_bucket: &str,
    destination_bucket: &str,
    source_object: &str,
    destination_object: &str,
) -> Result<(), S3ExampleError> {
    let source_key = format!("{source_bucket}/{source_object}");
    let response = client
        .copy_object()
        .copy_source(&source_key)
        .bucket(destination_bucket)
        .key(destination_object)
        .send()
        .await?;

    println!(
        "Copied from {source_key} to {destination_bucket}/{destination_object} with etag {}",
        response
            .copy_object_result
            .unwrap_or_else(|| aws_sdk_s3::types::CopyObjectResult::builder().build())
            .e_tag()
            .unwrap_or("missing")
    );
    Ok(())
}

有关API详细信息，请参见CopyObject中的 Rust AWS SDK API 参考。

SAP ABAP

SDK对于 SAP ABAP

注意

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


    TRY.
        lo_s3->copyobject(
          iv_bucket = iv_dest_bucket
          iv_key = iv_dest_object
          iv_copysource = |{ iv_src_bucket }/{ iv_src_object }|
        ).
        MESSAGE 'Object copied to another bucket.' TYPE 'I'.
      CATCH /aws1/cx_s3_nosuchbucket.
        MESSAGE 'Bucket does not exist.' TYPE 'E'.
      CATCH /aws1/cx_s3_nosuchkey.
        MESSAGE 'Object key does not exist.' TYPE 'E'.
    ENDTRY.

有关API详细信息，请参阅CopyObject中的AWS SDK以供SAPABAPAPI参考。

Swift

SDK为斯威夫特

注意

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


import AWSS3

    public func copyFile(from sourceBucket: String, name: String, to destBucket: String) async throws {
        let srcUrl = ("\(sourceBucket)/\(name)").addingPercentEncoding(withAllowedCharacters: .urlPathAllowed)

        let input = CopyObjectInput(
            bucket: destBucket,
            copySource: srcUrl,
            key: name
        )
        do {
            _ = try await client.copyObject(input: input)
        }
        catch {
            print("ERROR: ", dump(error, name: "Copying an object."))
            throw error
        }
    }

有关API详细信息，请参阅CopyObject中的 Swi AWS SDK ft API 参考。

Javascript 在您的浏览器中被禁用或不可用。

要使用 Amazon Web Services 文档，必须启用 Javascript。请参阅浏览器的帮助页面以了解相关说明。

文档惯例

CompleteMultipartUpload

CreateBucket

与 AWS SDK或CopyObject一起使用 CLI

注意

注意

注意

注意

注意

注意

注意

注意

注意

注意

注意

注意

注意

与 AWS SDK或`CopyObject`一起使用 CLI