此页面由 Cloud Translation API 翻译。

复制、重命名和移动对象

本页面介绍了如何在 Cloud Storage 中的存储桶内和存储桶之间复制、重命名和移动对象。

请注意，虽然 Cloud Storage 中的某些工具使对象移动或重命名操作看起来像是一种单一的操作，但此类操作始终是由两种操作构成的：首先对原始对象执行复制操作，然后对该对象执行删除操作，因为对象是不可变的。

复制对象

所需的角色

如需获得复制对象所需的权限，请让您的管理员为您授予源存储桶的 Storage Object Viewer (roles/storage.objectViewer) 角色和目标存储桶的 Storage Object User (roles/storage.objectUser) 角色。如果您打算使用 Google Cloud 控制台，请让您的管理员除了授予 Storage Object Viewer 和 Storage Object User 角色外，还为您授予包含源存储分区和目标存储分区的项目的“Viewer”基本角色。

这些角色可提供复制对象所需的以下权限：

针对源存储桶的 storage.objects.get
针对目标存储桶的 storage.objects.create
针对目标存储桶的 storage.objects.delete 权限（仅当覆盖对象时才需要）

使用 Google Cloud 控制台时，您还必须拥有以下权限：

针对源存储桶和目标存储桶的 storage.objects.list 权限
针对包含源存储桶和目标存储桶的项目的 storage.buckets.list 权限

如果您要复制的对象启用了功能，您可能需要其他角色。例如，如果您要复制的对象具有您要保留的对象保留配置，则您需要对目标存储桶具有可提供 storage.objects.setRetention 权限的角色，例如 Storage Object Admin (roles/storage.objectAdmin) 角色。

您也可以使用自定义角色或其他预定义角色来获取这些权限。

如需了解如何授予存储桶的角色，请参阅将 IAM 与存储桶搭配使用。

如需了解如何授予项目的角色，请参阅管理对项目的访问权限。

要复制其中一个 Cloud Storage 存储分区中的对象，请执行以下操作：

控制台

在 Google Cloud 控制台中，前往 Cloud Storage 存储分区页面。

进入“存储桶”
在存储桶列表中，找到包含要复制的对象的存储桶，并点击其名称。

此时会打开“存储桶详情”页面，其中“对象”标签页已选中。
导航到可能位于文件夹中的对象。
点击与对象关联的对象溢出菜单 ()。
点击复制。

此时系统会显示复制对象窗格。
在目的地字段中，输入目的地存储桶的名称和复制的对象的名称。

您也可以点击浏览来选择目标，但浏览选项仅限于当前项目中的存储桶。
点击复制。

如需了解如何在 Google Cloud 控制台中获取有关失败的 Cloud Storage 操作的详细错误信息，请参阅问题排查。

命令行

使用 gcloud storage cp 命令：

gcloud storage cp gs://SOURCE_BUCKET_NAME/SOURCE_OBJECT_NAME gs://DESTINATION_BUCKET_NAME/NAME_OF_COPY

其中：

SOURCE_BUCKET_NAME 是包含待复制对象的存储桶的名称。例如 my-bucket。
SOURCE_OBJECT_NAME 是您要复制的对象的名称。例如 pets/dog.png。
DESTINATION_BUCKET_NAME 是对象要复制到的存储桶的名称。例如 another-bucket。
NAME_OF_COPY 是您要为对象副本指定的名称。例如 shiba.png。

如果成功，响应类似于以下示例：

Copying gs://example-bucket/file.txt to gs://other-bucket/file-copy.txt
  Completed files 1/1 | 164.3kiB/164.3kiB

客户端库

C++

如需了解详情，请参阅 Cloud Storage C++ API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& source_bucket_name,
   std::string const& source_object_name,
   std::string const& destination_bucket_name,
   std::string const& destination_object_name) {
  StatusOr<gcs::ObjectMetadata> new_copy_meta =
      client.CopyObject(source_bucket_name, source_object_name,
                        destination_bucket_name, destination_object_name);
  if (!new_copy_meta) throw std::move(new_copy_meta).status();

  std::cout << "Successfully copied " << source_object_name << " in bucket "
            << source_bucket_name << " to bucket " << new_copy_meta->bucket()
            << " with name " << new_copy_meta->name()
            << ".\nThe full metadata after the copy is: " << *new_copy_meta
            << "\n";
}

C#

如需了解详情，请参阅 Cloud Storage C# API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。


using Google.Cloud.Storage.V1;
using System;

public class CopyFileSample
{
    public void CopyFile(
        string sourceBucketName = "source-bucket-name",
        string sourceObjectName = "source-file",
        string destBucketName = "destination-bucket-name",
        string destObjectName = "destination-file-name")
    {
        var storage = StorageClient.Create();
        storage.CopyObject(sourceBucketName, sourceObjectName, destBucketName, destObjectName);

        Console.WriteLine($"Copied {sourceBucketName}/{sourceObjectName} to " + $"{destBucketName}/{destObjectName}.");
    }
}

Go

如需了解详情，请参阅 Cloud Storage Go API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

import (
	"context"
	"fmt"
	"io"
	"time"

	"cloud.google.com/go/storage"
)

// copyFile copies an object into specified bucket.
func copyFile(w io.Writer, dstBucket, srcBucket, srcObject string) error {
	// dstBucket := "bucket-1"
	// srcBucket := "bucket-2"
	// srcObject := "object"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close()

	ctx, cancel := context.WithTimeout(ctx, time.Second*10)
	defer cancel()

	dstObject := srcObject + "-copy"
	src := client.Bucket(srcBucket).Object(srcObject)
	dst := client.Bucket(dstBucket).Object(dstObject)

	// Optional: set a generation-match precondition to avoid potential race
	// conditions and data corruptions. The request to copy is aborted if the
	// object's generation number does not match your precondition.
	// For a dst object that does not yet exist, set the DoesNotExist precondition.
	dst = dst.If(storage.Conditions{DoesNotExist: true})
	// If the destination object already exists in your bucket, set instead a
	// generation-match precondition using its generation number.
	// attrs, err := dst.Attrs(ctx)
	// if err != nil {
	// 	return fmt.Errorf("object.Attrs: %w", err)
	// }
	// dst = dst.If(storage.Conditions{GenerationMatch: attrs.Generation})

	if _, err := dst.CopierFrom(src).Run(ctx); err != nil {
		return fmt.Errorf("Object(%q).CopierFrom(%q).Run: %w", dstObject, srcObject, err)
	}
	fmt.Fprintf(w, "Blob %v in bucket %v copied to blob %v in bucket %v.\n", srcObject, srcBucket, dstObject, dstBucket)
	return nil
}

Java

如需了解详情，请参阅 Cloud Storage Java API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。


import com.google.cloud.storage.BlobId;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;

public class CopyObject {
  public static void copyObject(
      String projectId, String sourceBucketName, String objectName, String targetBucketName) {
    // The ID of your GCP project
    // String projectId = "your-project-id";

    // The ID of the bucket the original object is in
    // String sourceBucketName = "your-source-bucket";

    // The ID of the GCS object to copy
    // String objectName = "your-object-name";

    // The ID of the bucket to copy the object to
    // String targetBucketName = "target-object-bucket";

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    BlobId source = BlobId.of(sourceBucketName, objectName);
    BlobId target =
        BlobId.of(
            targetBucketName, objectName); // you could change "objectName" to rename the object

    // Optional: set a generation-match precondition to avoid potential race
    // conditions and data corruptions. The request returns a 412 error if the
    // preconditions are not met.
    Storage.BlobTargetOption precondition;
    if (storage.get(targetBucketName, objectName) == null) {
      // For a target object that does not yet exist, set the DoesNotExist precondition.
      // This will cause the request to fail if the object is created before the request runs.
      precondition = Storage.BlobTargetOption.doesNotExist();

    } else {
      // If the destination already exists in your bucket, instead set a generation-match
      // precondition. This will cause the request to fail if the existing object's generation
      // changes before the request runs.
      precondition =
          Storage.BlobTargetOption.generationMatch(
              storage.get(targetBucketName, objectName).getGeneration());
    }

    storage.copy(
        Storage.CopyRequest.newBuilder().setSource(source).setTarget(target, precondition).build());

    System.out.println(
        "Copied object "
            + objectName
            + " from bucket "
            + sourceBucketName
            + " to "
            + targetBucketName);
  }
}

Node.js

如需了解详情，请参阅 Cloud Storage Node.js API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// The ID of the bucket the original file is in
// const srcBucketName = 'your-source-bucket';

// The ID of the GCS file to copy
// const srcFilename = 'your-file-name';

// The ID of the bucket to copy the file to
// const destBucketName = 'target-file-bucket';

// The ID of the GCS file to create
// const destFileName = 'target-file-name';

// Imports the Google Cloud client library
const {Storage} = require('@google-cloud/storage');

// Creates a client
const storage = new Storage();

async function copyFile() {
  const copyDestination = storage.bucket(destBucketName).file(destFileName);

  // Optional:
  // Set a generation-match precondition to avoid potential race conditions
  // and data corruptions. The request to copy is aborted if the object's
  // generation number does not match your precondition. For a destination
  // object that does not yet exist, set the ifGenerationMatch precondition to 0
  // If the destination object already exists in your bucket, set instead a
  // generation-match precondition using its generation number.
  const copyOptions = {
    preconditionOpts: {
      ifGenerationMatch: destinationGenerationMatchPrecondition,
    },
  };

  // Copies the file to the other bucket
  await storage
    .bucket(srcBucketName)
    .file(srcFilename)
    .copy(copyDestination, copyOptions);

  console.log(
    `gs://${srcBucketName}/${srcFilename} copied to gs://${destBucketName}/${destFileName}`
  );
}

copyFile().catch(console.error);

PHP

如需了解详情，请参阅 Cloud Storage PHP API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

use Google\Cloud\Storage\StorageClient;

/**
 * Copy an object to a new name and/or bucket.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 * @param string $objectName The name of your Cloud Storage object.
 *        (e.g. 'my-object')
 * @param string $newBucketName The destination bucket name.
 *        (e.g. 'my-other-bucket')
 * @param string $newObjectName The destination object name.
 *        (e.g. 'my-other-object')
 */
function copy_object(string $bucketName, string $objectName, string $newBucketName, string $newObjectName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $object = $bucket->object($objectName);
    $object->copy($newBucketName, ['name' => $newObjectName]);
    printf('Copied gs://%s/%s to gs://%s/%s' . PHP_EOL,
        $bucketName, $objectName, $newBucketName, $newObjectName);
}

Python

如需了解详情，请参阅 Cloud Storage Python API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

from google.cloud import storage


def copy_blob(
    bucket_name, blob_name, destination_bucket_name, destination_blob_name,
):
    """Copies a blob from one bucket to another with a new name."""
    # bucket_name = "your-bucket-name"
    # blob_name = "your-object-name"
    # destination_bucket_name = "destination-bucket-name"
    # destination_blob_name = "destination-object-name"

    storage_client = storage.Client()

    source_bucket = storage_client.bucket(bucket_name)
    source_blob = source_bucket.blob(blob_name)
    destination_bucket = storage_client.bucket(destination_bucket_name)

    # Optional: set a generation-match precondition to avoid potential race conditions
    # and data corruptions. The request to copy is aborted if the object's
    # generation number does not match your precondition. For a destination
    # object that does not yet exist, set the if_generation_match precondition to 0.
    # If the destination object already exists in your bucket, set instead a
    # generation-match precondition using its generation number.
    # There is also an `if_source_generation_match` parameter, which is not used in this example.
    destination_generation_match_precondition = 0

    blob_copy = source_bucket.copy_blob(
        source_blob, destination_bucket, destination_blob_name, if_generation_match=destination_generation_match_precondition,
    )

    print(
        "Blob {} in bucket {} copied to blob {} in bucket {}.".format(
            source_blob.name,
            source_bucket.name,
            blob_copy.name,
            destination_bucket.name,
        )
    )

Ruby

如需了解详情，请参阅 Cloud Storage Ruby API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

def copy_file source_bucket_name:, source_file_name:, destination_bucket_name:, destination_file_name:
  # The ID of the bucket the original object is in
  # source_bucket_name = "source-bucket-name"

  # The ID of the GCS object to copy
  # source_file_name = "source-file-name"

  # The ID of the bucket to copy the object to
  # destination_bucket_name = "destination-bucket-name"

  # The ID of the new GCS object
  # destination_file_name = "destination-file-name"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new
  bucket  = storage.bucket source_bucket_name, skip_lookup: true
  file    = bucket.file source_file_name

  destination_bucket = storage.bucket destination_bucket_name
  destination_file   = file.copy destination_bucket.name, destination_file_name

  puts "#{file.name} in #{bucket.name} copied to " \
       "#{destination_file.name} in #{destination_bucket.name}"
end

REST API

JSON API

安装并初始化 gcloud CLI，以便为 Authorization 标头生成访问令牌。

使用 cURL 通过 POST Object 请求调用 JSON API：
```
curl -X POST \
  -H "Authorization: Bearer $(gcloud auth print-access-token)" \
  -H "Content-Length: 0" \
  "https://storage.googleapis.com/storage/v1/b/SOURCE_BUCKET_NAME/o/SOURCE_OBJECT_NAME/rewriteTo/b/DESTINATION_BUCKET_NAME/o/NAME_OF_COPY"
```
其中：
- SOURCE_BUCKET_NAME 是包含待复制对象的存储桶的名称。例如 my-bucket。
- SOURCE_OBJECT_NAME 是要复制的对象的网址编码名称。例如，pets/dog.png 的网址编码为 pets%2Fdog.png。
- DESTINATION_BUCKET_NAME 是对象要复制到的存储桶的名称。例如 another-bucket。
- NAME_OF_COPY 是您要为对象副本指定的网址编码名称。例如 shiba.png。
由于 rewrite 方法通过有限大小的数据块复制数据，因此您的副本可能需要多个请求，尤其是对于大型对象。

例如，对 rewrite 请求的以下响应表明您需要发出额外的 rewrite 请求：
```
{
  "kind": "storage#rewriteResponse",
  "totalBytesRewritten": 1048576,
  "objectSize": 10000000000,
  "done": false,
  "rewriteToken": TOKEN_VALUE
}
```

在后续请求中使用 rewriteToken 继续复制数据：

curl -X POST \
 -H "Authorization: Bearer $(gcloud auth print-access-token)" \
 -H "Content-Length: 0" \
 -d '{"rewriteToken": "TOKEN_VALUE"}' \
 "https://storage.googleapis.com/storage/v1/b/SOURCE_BUCKET_NAME/o/SOURCE_OBJECT_NAME/rewriteTo/b/DESTINATION_BUCKET_NAME/o/NAME_OF_COPY"

其中：

TOKEN_VALUE 是上一个请求中返回的 rewriteToken 值。
所有其他值均与上一个请求中使用的值相匹配。

完整复制对象后，最后一个响应将包含一个 done 属性（设置为 true），没有 rewriteToken 属性，副本的元数据包含在 resource 属性中。

{
 "kind": "storage#rewriteResponse",
 "totalBytesRewritten": 10000000000,
 "objectSize": 10000000000,
 "done": true,
 "resource": objects Resource
}

XML API

安装并初始化 gcloud CLI，以便为 Authorization 标头生成访问令牌。

使用 cURL，通过 PUT Object 请求调用 XML API：
```
curl -X PUT \
  -H "Authorization: Bearer $(gcloud auth print-access-token)" \
  -H "x-goog-copy-source: SOURCE_BUCKET_NAME/SOURCE_OBJECT_NAME" \
  "https://storage.googleapis.com/DESTINATION_BUCKET_NAME/NAME_OF_COPY"
```
其中：
- SOURCE_BUCKET_NAME 是包含待复制对象的存储桶的名称。例如 my-bucket。
- SOURCE_OBJECT_NAME 是您要复制的对象的名称，例如 pets/dog.png。
- DESTINATION_BUCKET_NAME 是对象要复制到的存储桶的名称。例如 another-bucket。
- NAME_OF_COPY 是您要为对象副本指定的网址编码名称。例如 shiba.png。

移动或重命名对象

所需的角色

如需获得移动或重命名对象所需的权限，请让您的管理员为您授予源存储桶和目标存储桶的 Storage Object User (roles/storage.objectUser) 角色。如果您打算使用 Google Cloud 控制台，请让您的管理员除了授予 Storage Object User 角色，还为您授予包含源存储分区和目标存储分区的项目的“Viewer”基本角色。

这些角色可提供移动或重命名对象所需的以下权限：

针对源存储桶的 storage.objects.delete 权限（如果覆盖对象，还需要针对目标存储桶的此权限）
针对源存储桶的 storage.objects.get
针对目标存储桶的 storage.objects.create

使用 Google Cloud 控制台时，您还必须拥有以下权限：

针对源存储桶和目标存储桶的 storage.objects.list 权限
针对包含源存储桶和目标存储桶的项目的 storage.buckets.list 权限

如果您要移动或重命名的对象已启用功能，您可能需要其他角色。例如，如果您要移动的对象具有对象保留配置，则您需要对目标存储桶具有可提供 storage.objects.setRetention 权限的角色，例如 Storage Object Admin (roles/storage.objectAdmin) 角色。

您也可以使用自定义角色或其他预定义角色来获取这些权限。

如需了解如何授予存储桶的角色，请参阅将 IAM 与存储桶搭配使用。

如需了解如何授予项目的角色，请参阅管理对项目的访问权限。

如需在存储桶之间移动 Cloud Storage 中的对象，或者重命名存储桶中的对象，请执行以下操作：

控制台

在 Google Cloud 控制台中，前往 Cloud Storage 存储分区页面。

进入“存储桶”
在存储桶列表中，找到包含要移动或重命名的对象的存储桶，并点击其名称。

此时会打开“存储桶详情”页面，其中“对象”标签页已选中。
导航到可能位于文件夹中的对象。
点击与对象关联的对象溢出菜单 ()。
如果要在同一存储桶中为对象指定一个新名称，请点击重命名。
1. 在出现的叠加窗口中，输入对象的新名称。
2. 点击重命名。
如果要将对象移动到其他存储桶，请点击移动。
1. 在出现的叠加窗口中，点击浏览。
2. 选择对象要移动到的目的地。
3. 点击选择。
4. 点击移动。

如需了解如何在 Google Cloud 控制台中获取有关失败的 Cloud Storage 操作的详细错误信息，请参阅问题排查。

命令行

使用 gcloud storage mv 命令：

gcloud storage mv gs://SOURCE_BUCKET_NAME/SOURCE_OBJECT_NAME gs://DESTINATION_BUCKET_NAME/DESTINATION_OBJECT_NAME

其中：

SOURCE_BUCKET_NAME 是包含要移动或重命名的对象的存储桶名称。例如 my-bucket。
SOURCE_OBJECT_NAME 是要移动或重命名的对象的名称。例如 pets/dog.png。
DESTINATION_BUCKET_NAME 是存储所移动或重命名的对象的存储桶名称。例如 another-bucket。
DESTINATION_OBJECT_NAME 是希望对象在移动或重命名后使用的名称。例如 shiba.png。

如果成功，响应类似于以下示例：

Copying gs://example-bucket/old-file.txt to gs://new-bucket/new-file.txt
Removing gs://example-bucket/old-file.txt...
  Completed files 1/1 | 164.3kiB/164.3kiB

客户端库

C++

如需了解详情，请参阅 Cloud Storage C++ API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name,
   std::string const& old_object_name, std::string const& new_object_name) {
  StatusOr<gcs::ObjectMetadata> metadata = client.RewriteObjectBlocking(
      bucket_name, old_object_name, bucket_name, new_object_name);
  if (!metadata) throw std::move(metadata).status();

  google::cloud::Status status =
      client.DeleteObject(bucket_name, old_object_name);
  if (!status.ok()) throw std::runtime_error(status.message());

  std::cout << "Renamed " << old_object_name << " to " << new_object_name
            << " in bucket " << bucket_name << "\n";
}

C#

如需了解详情，请参阅 Cloud Storage C# API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。


using Google.Cloud.Storage.V1;
using System;

public class MoveFileSample
{
    public void MoveFile(
        string sourceBucketName = "your-unique-bucket-name",
        string sourceObjectName = "your-object-name",
        string targetBucketName = "target-object-bucket",
        string targetObjectName = "target-object-name")
    {
        var storage = StorageClient.Create();
        storage.CopyObject(sourceBucketName, sourceObjectName, targetBucketName, targetObjectName);
        storage.DeleteObject(sourceBucketName, sourceObjectName);
        Console.WriteLine($"Moved {sourceObjectName} to {targetObjectName}.");
    }
}

Go

如需了解详情，请参阅 Cloud Storage Go API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

import (
	"context"
	"fmt"
	"io"
	"time"

	"cloud.google.com/go/storage"
)

// moveFile moves an object into another location.
func moveFile(w io.Writer, bucket, object string) error {
	// bucket := "bucket-name"
	// object := "object-name"
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close()

	ctx, cancel := context.WithTimeout(ctx, time.Second*10)
	defer cancel()

	dstName := object + "-rename"
	src := client.Bucket(bucket).Object(object)
	dst := client.Bucket(bucket).Object(dstName)

	// Optional: set a generation-match precondition to avoid potential race
	// conditions and data corruptions. The request to copy the file is aborted
	// if the object's generation number does not match your precondition.
	// For a dst object that does not yet exist, set the DoesNotExist precondition.
	dst = dst.If(storage.Conditions{DoesNotExist: true})
	// If the destination object already exists in your bucket, set instead a
	// generation-match precondition using its generation number.
	// attrs, err := dst.Attrs(ctx)
	// if err != nil {
	// 	return fmt.Errorf("object.Attrs: %w", err)
	// }
	// dst = dst.If(storage.Conditions{GenerationMatch: attrs.Generation})

	if _, err := dst.CopierFrom(src).Run(ctx); err != nil {
		return fmt.Errorf("Object(%q).CopierFrom(%q).Run: %w", dstName, object, err)
	}
	if err := src.Delete(ctx); err != nil {
		return fmt.Errorf("Object(%q).Delete: %w", object, err)
	}
	fmt.Fprintf(w, "Blob %v moved to %v.\n", object, dstName)
	return nil
}

Java

如需了解详情，请参阅 Cloud Storage Java API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。


import com.google.cloud.storage.Blob;
import com.google.cloud.storage.BlobId;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;

public class MoveObject {
  public static void moveObject(
      String projectId,
      String sourceBucketName,
      String sourceObjectName,
      String targetBucketName,
      String targetObjectName) {
    // The ID of your GCP project
    // String projectId = "your-project-id";

    // The ID of your GCS bucket
    // String bucketName = "your-unique-bucket-name";

    // The ID of your GCS object
    // String sourceObjectName = "your-object-name";

    // The ID of the bucket to move the object objectName to
    // String targetBucketName = "target-object-bucket"

    // The ID of your GCS object
    // String targetObjectName = "your-new-object-name";

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    BlobId source = BlobId.of(sourceBucketName, sourceObjectName);
    BlobId target = BlobId.of(targetBucketName, targetObjectName);

    // Optional: set a generation-match precondition to avoid potential race
    // conditions and data corruptions. The request returns a 412 error if the
    // preconditions are not met.
    Storage.BlobTargetOption precondition;
    if (storage.get(targetBucketName, targetObjectName) == null) {
      // For a target object that does not yet exist, set the DoesNotExist precondition.
      // This will cause the request to fail if the object is created before the request runs.
      precondition = Storage.BlobTargetOption.doesNotExist();
    } else {
      // If the destination already exists in your bucket, instead set a generation-match
      // precondition. This will cause the request to fail if the existing object's generation
      // changes before the request runs.
      precondition =
          Storage.BlobTargetOption.generationMatch(
              storage.get(targetBucketName, targetObjectName).getGeneration());
    }

    // Copy source object to target object
    storage.copy(
        Storage.CopyRequest.newBuilder().setSource(source).setTarget(target, precondition).build());
    Blob copiedObject = storage.get(target);
    // Delete the original blob now that we've copied to where we want it, finishing the "move"
    // operation
    storage.get(source).delete();

    System.out.println(
        "Moved object "
            + sourceObjectName
            + " from bucket "
            + sourceBucketName
            + " to "
            + targetObjectName
            + " in bucket "
            + copiedObject.getBucket());
  }
}

Node.js

如需了解详情，请参阅 Cloud Storage Node.js API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// The ID of your GCS bucket
// const bucketName = 'your-source-bucket';

// The ID of your GCS file
// const srcFileName = 'your-file-name';

// The new ID for your GCS file
// const destFileName = 'your-new-file-name';

// Imports the Google Cloud client library
const {Storage} = require('@google-cloud/storage');

// Creates a client
const storage = new Storage();

async function moveFile() {
  // Optional:
  // Set a generation-match precondition to avoid potential race conditions
  // and data corruptions. The request to copy is aborted if the object's
  // generation number does not match your precondition. For a destination
  // object that does not yet exist, set the ifGenerationMatch precondition to 0
  // If the destination object already exists in your bucket, set instead a
  // generation-match precondition using its generation number.
  const moveOptions = {
    preconditionOpts: {
      ifGenerationMatch: destinationGenerationMatchPrecondition,
    },
  };

  // Moves the file within the bucket
  await storage
    .bucket(bucketName)
    .file(srcFileName)
    .move(destFileName, moveOptions);

  console.log(
    `gs://${bucketName}/${srcFileName} moved to gs://${bucketName}/${destFileName}`
  );
}

moveFile().catch(console.error);

PHP

如需了解详情，请参阅 Cloud Storage PHP API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

use Google\Cloud\Storage\StorageClient;

/**
 * Move an object to a new name and/or bucket.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 * @param string $objectName The name of your Cloud Storage object.
 *        (e.g. 'my-object')
 * @param string $newBucketName the destination bucket name.
 *        (e.g. 'my-other-bucket')
 * @param string $newObjectName the destination object name.
 *        (e.g. 'my-other-object')
 */
function move_object(string $bucketName, string $objectName, string $newBucketName, string $newObjectName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $object = $bucket->object($objectName);
    $object->copy($newBucketName, ['name' => $newObjectName]);
    $object->delete();
    printf('Moved gs://%s/%s to gs://%s/%s' . PHP_EOL,
        $bucketName,
        $objectName,
        $newBucketName,
        $newObjectName);
}

Python

如需了解详情，请参阅 Cloud Storage Python API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

from google.cloud import storage


def move_blob(bucket_name, blob_name, destination_bucket_name, destination_blob_name,):
    """Moves a blob from one bucket to another with a new name."""
    # The ID of your GCS bucket
    # bucket_name = "your-bucket-name"
    # The ID of your GCS object
    # blob_name = "your-object-name"
    # The ID of the bucket to move the object to
    # destination_bucket_name = "destination-bucket-name"
    # The ID of your new GCS object (optional)
    # destination_blob_name = "destination-object-name"

    storage_client = storage.Client()

    source_bucket = storage_client.bucket(bucket_name)
    source_blob = source_bucket.blob(blob_name)
    destination_bucket = storage_client.bucket(destination_bucket_name)

    # Optional: set a generation-match precondition to avoid potential race conditions
    # and data corruptions. The request is aborted if the object's
    # generation number does not match your precondition. For a destination
    # object that does not yet exist, set the if_generation_match precondition to 0.
    # If the destination object already exists in your bucket, set instead a
    # generation-match precondition using its generation number.
    # There is also an `if_source_generation_match` parameter, which is not used in this example.
    destination_generation_match_precondition = 0

    blob_copy = source_bucket.copy_blob(
        source_blob, destination_bucket, destination_blob_name, if_generation_match=destination_generation_match_precondition,
    )
    source_bucket.delete_blob(blob_name)

    print(
        "Blob {} in bucket {} moved to blob {} in bucket {}.".format(
            source_blob.name,
            source_bucket.name,
            blob_copy.name,
            destination_bucket.name,
        )
    )

Ruby

如需了解详情，请参阅 Cloud Storage Ruby API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为客户端库设置身份验证。

def move_file bucket_name:, file_name:, new_name:
  # The ID of your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  # The ID of your GCS object
  # file_name = "your-file-name"

  # The ID of your new GCS object
  # new_name = "your-new-file-name"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new
  bucket  = storage.bucket bucket_name, skip_lookup: true
  file    = bucket.file file_name

  renamed_file = file.copy new_name

  file.delete

  puts "#{file_name} has been renamed to #{renamed_file.name}"
end

REST API

JSON API

如需使用 JSON API 直接移动或重命名对象，请先对具有所需属性的对象创建副本，然后删除原始对象。

XML API

如需使用 XML API 直接移动或重命名对象，请先对具有所需属性的对象创建副本，然后删除原始对象。

我们建议使用 Storage Transfer Service 在存储桶之间移动超过 1 TB 的数据。

复制、重命名和移动对象

复制对象

所需的角色

控制台

命令行

客户端库

C++

C#

Go

Java

Node.js

PHP

Python

Ruby

REST API

JSON API

XML API

移动或重命名对象

所需的角色

控制台

命令行

客户端库

C++

C#

Go

Java

Node.js

PHP

Python

Ruby

REST API

JSON API

XML API

后续步骤