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创建和填充文件夹

文件夹是仅包含元数据的文件，可用于整理 Google 云端硬盘中的文件。它们具有以下属性：

文件夹是一种 MIME 类型 application/vnd.google-apps.folder 的文件，没有扩展名。
别名 root 可用于在提供文件 ID 的任何位置引用根文件夹。

如需详细了解云端硬盘文件夹限制，请参阅文件和文件夹限制。

本指南介绍了如何执行一些与文件夹相关的基本任务。

创建文件夹

如需创建文件夹，请使用 files.create() 方法，并指定 mimeType 为 application/vnd.google-apps.folder 和 name。以下代码示例展示了如何使用客户端库创建文件夹：

Java

drive/snippets/drive_v3/src/main/java/CreateFolder.java

在 GitHub 上查看

import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.File;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Arrays;

/* Class to demonstrate use of Drive's create folder API */
public class CreateFolder {


  /**
   * Create new folder.
   *
   * @return Inserted folder id if successful, {@code null} otherwise.
   * @throws IOException if service account credentials file not found.
   */
  public static String createFolder() throws IOException {
    // Load pre-authorized user credentials from the environment.
    // TODO(developer) - See https://developers.google.com/identity for
    // guides on implementing OAuth2 for your application.
    GoogleCredentials credentials = GoogleCredentials.getApplicationDefault()
        .createScoped(Arrays.asList(DriveScopes.DRIVE_FILE));
    HttpRequestInitializer requestInitializer = new HttpCredentialsAdapter(
        credentials);

    // Build a new authorized API client service.
    Drive service = new Drive.Builder(new NetHttpTransport(),
        GsonFactory.getDefaultInstance(),
        requestInitializer)
        .setApplicationName("Drive samples")
        .build();
    // File's metadata.
    File fileMetadata = new File();
    fileMetadata.setName("Test");
    fileMetadata.setMimeType("application/vnd.google-apps.folder");
    try {
      File file = service.files().create(fileMetadata)
          .setFields("id")
          .execute();
      System.out.println("Folder ID: " + file.getId());
      return file.getId();
    } catch (GoogleJsonResponseException e) {
      // TODO(developer) - handle error appropriately
      System.err.println("Unable to create folder: " + e.getDetails());
      throw e;
    }
  }
}

Python

drive/snippets/drive-v3/file_snippet/create_folder.py

在 GitHub 上查看

import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def create_folder():
  """Create a folder and prints the folder ID
  Returns : Folder Id

  Load pre-authorized user credentials from the environment.
  TODO(developer) - See https://developers.google.com/identity
  for guides on implementing OAuth2 for the application.
  """
  creds, _ = google.auth.default()

  try:
    # create drive api client
    service = build("drive", "v3", credentials=creds)
    file_metadata = {
        "name": "Invoices",
        "mimeType": "application/vnd.google-apps.folder",
    }

    # pylint: disable=maybe-no-member
    file = service.files().create(body=file_metadata, fields="id").execute()
    print(f'Folder ID: "{file.get("id")}".')
    return file.get("id")

  except HttpError as error:
    print(f"An error occurred: {error}")
    return None


if __name__ == "__main__":
  create_folder()

Node.js

drive/snippets/drive_v3/file_snippets/create_folder.js

在 GitHub 上查看

import {GoogleAuth} from 'google-auth-library';
import {google} from 'googleapis';

/**
 * Creates a new folder in Google Drive.
 * @return {Promise<string|null|undefined>} The ID of the created folder.
 */
async function createFolder() {
  // Authenticate with Google and get an authorized client.
  // TODO (developer): Use an appropriate auth mechanism for your app.
  const auth = new GoogleAuth({
    scopes: 'https://www.googleapis.com/auth/drive',
  });

  // Create a new Drive API client (v3).
  const service = google.drive({version: 'v3', auth});

  // The metadata for the new folder.
  const fileMetadata = {
    name: 'Invoices',
    mimeType: 'application/vnd.google-apps.folder',
  };

  // Create the new folder.
  const file = await service.files.create({
    requestBody: fileMetadata,
    fields: 'id',
  });

  // Print the ID of the new folder.
  console.log('Folder Id:', file.data.id);
  return file.data.id;
}

PHP

drive/snippets/drive_v3/src/DriveCreateFolder.php

在 GitHub 上查看

<?php
use Google\Client;
use Google\Service\Drive;
function createFolder()
{
    try {
        $client = new Client();
        $client->useApplicationDefaultCredentials();
        $client->addScope(Drive::DRIVE);
        $driveService = new Drive($client);
        $fileMetadata = new Drive\DriveFile(array(
            'name' => 'Invoices',
            'mimeType' => 'application/vnd.google-apps.folder'));
        $file = $driveService->files->create($fileMetadata, array(
            'fields' => 'id'));
        printf("Folder ID: %s\n", $file->id);
        return $file->id;

    }catch(Exception $e) {
       echo "Error Message: ".$e;
    }
}

.NET

drive/snippets/drive_v3/DriveV3Snippets/CreateFolder.cs

在 GitHub 上查看

using Google.Apis.Auth.OAuth2;
using Google.Apis.Drive.v3;
using Google.Apis.Services;

namespace DriveV3Snippets
{
    // Class to demonstrate use of Drive create folder API.
    public class CreateFolder
    {
        /// <summary>
        /// Creates a new folder.
        /// </summary>
        /// <returns>created folder id, null otherwise</returns>
        public static string DriveCreateFolder()
        {
            try
            {
                /* Load pre-authorized user credentials from the environment.
                 TODO(developer) - See https://developers.google.com/identity for 
                 guides on implementing OAuth2 for your application. */
                GoogleCredential credential = GoogleCredential.GetApplicationDefault()
                    .CreateScoped(DriveService.Scope.Drive);

                // Create Drive API service.
                var service = new DriveService(new BaseClientService.Initializer
                {
                    HttpClientInitializer = credential,
                    ApplicationName = "Drive API Snippets"
                });

                // File metadata
                var fileMetadata = new Google.Apis.Drive.v3.Data.File()
                {
                    Name = "Invoices",
                    MimeType = "application/vnd.google-apps.folder"
                };

                // Create a new folder on drive.
                var request = service.Files.Create(fileMetadata);
                request.Fields = "id";
                var file = request.Execute();
                // Prints the created folder id.
                Console.WriteLine("Folder ID: " + file.Id);
                return file.Id;
            }
            catch (Exception e)
            {
                // TODO(developer) - handle error appropriately
                if (e is AggregateException)
                {
                    Console.WriteLine("Credential Not found");
                }
                else
                {
                    throw;
                }
            }
            return null;
        }
    }
}

curl

curl -X POST 'https://www.googleapis.com/drive/v3/files' \
 -H 'Authorization: Bearer ACCESS_TOKEN' \
 -H 'Content-Type: application/json' \
 -d '{
   "name": "FOLDER_NAME",
   "mimeType": "application/vnd.google-apps.folder"
 }'

替换以下内容：

ACCESS_TOKEN：应用的 OAuth 2.0 令牌。
FOLDER_NAME：要创建的文件夹的名称。

在特定文件夹中创建文件

如需在特定文件夹中创建文件，请使用 files.create() 方法，并在文件的 parents 属性中指定文件夹 ID。

parents 属性包含文件的父文件夹的 ID。在顶级文件夹或任何其他文件夹中创建文件时，可以使用 parents 属性。

一个文件只能有一个父文件夹。不支持指定多个父文件夹。如果未指定 parents 字段，文件将直接放置在用户的“我的云端硬盘”文件夹中。

以下代码示例展示了如何使用客户端库在特定文件夹中创建文件：

Java

drive/snippets/drive_v3/src/main/java/UploadToFolder.java

在 GitHub 上查看

import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.http.FileContent;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.File;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;

/* Class to demonstrate Drive's upload to folder use-case. */
public class UploadToFolder {

  /**
   * Upload a file to the specified folder.
   *
   * @param realFolderId Id of the folder.
   * @return Inserted file metadata if successful, {@code null} otherwise.
   * @throws IOException if service account credentials file not found.
   */
  public static File uploadToFolder(String realFolderId) throws IOException {
    // Load pre-authorized user credentials from the environment.
    // TODO(developer) - See https://developers.google.com/identity for
    // guides on implementing OAuth2 for your application.
    GoogleCredentials credentials = GoogleCredentials.getApplicationDefault()
        .createScoped(Arrays.asList(DriveScopes.DRIVE_FILE));
    HttpRequestInitializer requestInitializer = new HttpCredentialsAdapter(
        credentials);

    // Build a new authorized API client service.
    Drive service = new Drive.Builder(new NetHttpTransport(),
        GsonFactory.getDefaultInstance(),
        requestInitializer)
        .setApplicationName("Drive samples")
        .build();

    // File's metadata.
    File fileMetadata = new File();
    fileMetadata.setName("photo.jpg");
    fileMetadata.setParents(Collections.singletonList(realFolderId));
    java.io.File filePath = new java.io.File("files/photo.jpg");
    FileContent mediaContent = new FileContent("image/jpeg", filePath);
    try {
      File file = service.files().create(fileMetadata, mediaContent)
          .setFields("id, parents")
          .execute();
      System.out.println("File ID: " + file.getId());
      return file;
    } catch (GoogleJsonResponseException e) {
      // TODO(developer) - handle error appropriately
      System.err.println("Unable to upload file: " + e.getDetails());
      throw e;
    }
  }
}

Python

drive/snippets/drive-v3/file_snippet/upload_to_folder.py

在 GitHub 上查看

import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
from googleapiclient.http import MediaFileUpload


def upload_to_folder(folder_id):
  """Upload a file to the specified folder and prints file ID, folder ID
  Args: Id of the folder
  Returns: ID of the file uploaded

  Load pre-authorized user credentials from the environment.
  TODO(developer) - See https://developers.google.com/identity
  for guides on implementing OAuth2 for the application.
  """
  creds, _ = google.auth.default()

  try:
    # create drive api client
    service = build("drive", "v3", credentials=creds)

    file_metadata = {"name": "photo.jpg", "parents": [folder_id]}
    media = MediaFileUpload(
        "download.jpeg", mimetype="image/jpeg", resumable=True
    )
    # pylint: disable=maybe-no-member
    file = (
        service.files()
        .create(body=file_metadata, media_body=media, fields="id")
        .execute()
    )
    print(f'File ID: "{file.get("id")}".')
    return file.get("id")

  except HttpError as error:
    print(f"An error occurred: {error}")
    return None


if __name__ == "__main__":
  upload_to_folder(folder_id="1s0oKEZZXjImNngxHGnY0xed6Mw-tvspu")

Node.js

drive/snippets/drive_v3/file_snippets/upload_to_folder.js

在 GitHub 上查看

import fs from 'node:fs';
import {GoogleAuth} from 'google-auth-library';
import {google} from 'googleapis';

/**
 * Uploads a file to the specified folder.
 * @param {string} folderId The ID of the folder to upload the file to.
 * @return {Promise<string>} The ID of the uploaded file.
 */
async function uploadToFolder(folderId) {
  // Authenticate with Google and get an authorized client.
  // TODO (developer): Use an appropriate auth mechanism for your app.
  const auth = new GoogleAuth({
    scopes: 'https://www.googleapis.com/auth/drive',
  });

  // Create a new Drive API client (v3).
  const service = google.drive({version: 'v3', auth});

  // The request body for the file to be uploaded.
  const requestBody = {
    name: 'photo.jpg',
    parents: [folderId],
  };

  // The media content to be uploaded.
  const media = {
    mimeType: 'image/jpeg',
    body: fs.createReadStream('files/photo.jpg'),
  };

  // Upload the file to the specified folder.
  const file = await service.files.create({
    requestBody,
    media,
    fields: 'id',
  });

  // Print the ID of the uploaded file.
  console.log('File Id:', file.data.id);
  if (!file.data.id) {
    throw new Error('File ID not found.');
  }
  return file.data.id;
}

PHP

drive/snippets/drive_v3/src/DriveUploadToFolder.php

在 GitHub 上查看

<?php
use Google\Client;
use Google\Service\Drive;
function uploadToFolder($folderId)
{
    try {
        $client = new Client();
        $client->useApplicationDefaultCredentials();
        $client->addScope(Drive::DRIVE);
        $driveService = new Drive($client);
        $fileMetadata = new Drive\DriveFile(array(
            'name' => 'photo.jpg',
            'parents' => array($folderId)
        ));
        $content = file_get_contents('../files/photo.jpg');
        $file = $driveService->files->create($fileMetadata, array(
            'data' => $content,
            'mimeType' => 'image/jpeg',
            'uploadType' => 'multipart',
            'fields' => 'id'));
        printf("File ID: %s\n", $file->id);
        return $file->id;
    } catch (Exception $e) {
        echo "Error Message: " . $e;
    }
}
require_once 'vendor/autoload.php';
uploadToFolder();

.NET

drive/snippets/drive_v3/DriveV3Snippets/UploadToFolder.cs

在 GitHub 上查看

using Google.Apis.Auth.OAuth2;
using Google.Apis.Drive.v3;
using Google.Apis.Services;

namespace DriveV3Snippets
{
    // Class to demonstrate use of Drive upload to folder.
    public class UploadToFolder
    {
        /// <summary>
        /// Upload a file to the specified folder.
        /// </summary>
        /// <param name="filePath">Image path to upload.</param>
        /// <param name="folderId">Id of the folder.</param>
        /// <returns>Inserted file metadata if successful, null otherwise</returns>
        public static Google.Apis.Drive.v3.Data.File DriveUploadToFolder
            (string filePath, string folderId)
        {
            try
            {
                /* Load pre-authorized user credentials from the environment.
                 TODO(developer) - See https://developers.google.com/identity for
                 guides on implementing OAuth2 for your application. */
                GoogleCredential credential = GoogleCredential.GetApplicationDefault()
                    .CreateScoped(DriveService.Scope.Drive);

                // Create Drive API service.
                var service = new DriveService(new BaseClientService.Initializer
                {
                    HttpClientInitializer = credential,
                    ApplicationName = "Drive API Snippets"
                });

                // Upload file photo.jpg in specified folder on drive.
                var fileMetadata = new Google.Apis.Drive.v3.Data.File()
                {
                    Name = "photo.jpg",
                    Parents = new List<string>
                    {
                        folderId
                    }
                };
                FilesResource.CreateMediaUpload request;
                // Create a new file on drive.
                using (var stream = new FileStream(filePath,
                           FileMode.Open))
                {
                    // Create a new file, with metadata and stream.
                    request = service.Files.Create(
                        fileMetadata, stream, "image/jpeg");
                    request.Fields = "id";
                    request.Upload();
                }
                var file = request.ResponseBody;
                // Prints the uploaded file id.
                Console.WriteLine("File ID: " + file.Id);
                return file;
            }
            catch (Exception e)
            {
                // TODO(developer) - handle error appropriately
                if (e is AggregateException)
                {
                    Console.WriteLine("Credential Not found");
                }
                else if (e is FileNotFoundException)
                {
                    Console.WriteLine("File not found");
                }
                else if (e is DirectoryNotFoundException)
                {
                    Console.WriteLine("Directory Not found");
                }
                else
                {
                    throw;
                }
            }
            return null;
        }
    }
}

curl

curl -X POST 'https://www.googleapis.com/drive/v3/files' \
 -H 'Authorization: Bearer ACCESS_TOKEN' \
 -H 'Content-Type: application/json' \
 -d '{
   "name": "photo.jpg",
   "parents": [
     "FOLDER_ID"
   ]
 }'

替换以下内容：

ACCESS_TOKEN：应用的 OAuth 2.0 令牌。
FOLDER_ID：要在其中创建文件的文件夹的 ID。

在文件夹之间移动文件

如需移动文件，您必须更新 parents 属性的 ID。

如需为现有文件添加或移除父文件夹，请结合使用 files.update() 方法和 addParents 或 removeParents 查询参数。

一个文件只能有一个父文件夹。不支持指定多个父文件夹。

警告：即使文件夹是一种文件，您也无法通过更新参数将文件夹从“我的云端硬盘”移入共享云端硬盘。addParents尝试这样做会返回 teamDrivesFolderMoveInNotSupported HTTP 状态代码响应。如需了解详情和可能的解决方法，请参阅解决错误

以下代码示例展示了如何使用客户端库在文件夹之间移动文件：

Java

drive/snippets/drive_v3/src/main/java/MoveFileToFolder.java

在 GitHub 上查看

import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.File;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;

/* Class to demonstrate use case for moving file to folder.*/
public class MoveFileToFolder {


  /**
   * @param fileId   Id of file to be moved.
   * @param folderId Id of folder where the fill will be moved.
   * @return list of parent ids for the file.
   */
  public static List<String> moveFileToFolder(String fileId, String folderId)
      throws IOException {
        /* Load pre-authorized user credentials from the environment.
        TODO(developer) - See https://developers.google.com/identity for
        guides on implementing OAuth2 for your application.*/
    GoogleCredentials credentials = GoogleCredentials.getApplicationDefault()
        .createScoped(Arrays.asList(DriveScopes.DRIVE_FILE));
    HttpRequestInitializer requestInitializer = new HttpCredentialsAdapter(
        credentials);
    // Build a new authorized API client service.
    Drive service = new Drive.Builder(new NetHttpTransport(),
        GsonFactory.getDefaultInstance(),
        requestInitializer)
        .setApplicationName("Drive samples")
        .build();

    // Retrieve the existing parents to remove
    File file = service.files().get(fileId)
        .setFields("parents")
        .execute();
    StringBuilder previousParents = new StringBuilder();
    for (String parent : file.getParents()) {
      previousParents.append(parent);
      previousParents.append(',');
    }
    try {
      // Move the file to the new folder
      file = service.files().update(fileId, null)
          .setAddParents(folderId)
          .setRemoveParents(previousParents.toString())
          .setFields("id, parents")
          .execute();

      return file.getParents();
    } catch (GoogleJsonResponseException e) {
      // TODO(developer) - handle error appropriately
      System.err.println("Unable to move file: " + e.getDetails());
      throw e;
    }
  }
}

Python

drive/snippets/drive-v3/file_snippet/move_file_to_folder.py

在 GitHub 上查看

import google.auth
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError


def move_file_to_folder(file_id, folder_id):
  """Move specified file to the specified folder.
  Args:
      file_id: Id of the file to move.
      folder_id: Id of the folder
  Print: An object containing the new parent folder and other meta data
  Returns : Parent Ids for the file

  Load pre-authorized user credentials from the environment.
  TODO(developer) - See https://developers.google.com/identity
  for guides on implementing OAuth2 for the application.
  """
  creds, _ = google.auth.default()

  try:
    # call drive api client
    service = build("drive", "v3", credentials=creds)

    # pylint: disable=maybe-no-member
    # Retrieve the existing parents to remove
    file = service.files().get(fileId=file_id, fields="parents").execute()
    previous_parents = ",".join(file.get("parents"))
    # Move the file to the new folder
    file = (
        service.files()
        .update(
            fileId=file_id,
            addParents=folder_id,
            removeParents=previous_parents,
            fields="id, parents",
        )
        .execute()
    )
    return file.get("parents")

  except HttpError as error:
    print(f"An error occurred: {error}")
    return None


if __name__ == "__main__":
  move_file_to_folder(
      file_id="1KuPmvGq8yoYgbfW74OENMCB5H0n_2Jm9",
      folder_id="1jvTFoyBhUspwDncOTB25kb9k0Fl0EqeN",
  )

Node.js

drive/snippets/drive_v3/file_snippets/move_file_to_folder.js

在 GitHub 上查看

import {GoogleAuth} from 'google-auth-library';
import {google} from 'googleapis';

/**
 * Moves a file to a new folder in Google Drive.
 * @param {string} fileId The ID of the file to move.
 * @param {string} folderId The ID of the folder to move the file to.
 * @return {Promise<number>} The status of the move operation.
 */
async function moveFileToFolder(fileId, folderId) {
  // Authenticate with Google and get an authorized client.
  // TODO (developer): Use an appropriate auth mechanism for your app.
  const auth = new GoogleAuth({
    scopes: 'https://www.googleapis.com/auth/drive',
  });

  // Create a new Drive API client (v3).
  const service = google.drive({version: 'v3', auth});

  // Get the file's metadata to retrieve its current parents.
  const file = await service.files.get({
    fileId,
    fields: 'parents',
  });

  // Get the current parents as a comma-separated string.
  const previousParents = (file.data.parents ?? []).join(',');

  // Move the file to the new folder.
  const result = await service.files.update({
    fileId,
    addParents: folderId,
    removeParents: previousParents,
    fields: 'id, parents',
  });

  // Print the status of the move operation.
  console.log(result.status);
  return result.status;
}

PHP

drive/snippets/drive_v3/src/DriveMoveFileToFolder.php

在 GitHub 上查看

<?php
use Google\Client;
use Google\Service\Drive;
use Google\Service\Drive\DriveFile;
function moveFileToFolder($fileId,$folderId)
{
    try {
        $client = new Client();
        $client->useApplicationDefaultCredentials();
        $client->addScope(Drive::DRIVE);
        $driveService = new Drive($client);
        $emptyFileMetadata = new DriveFile();
        // Retrieve the existing parents to remove
        $file = $driveService->files->get($fileId, array('fields' => 'parents'));
        $previousParents = join(',', $file->parents);
        // Move the file to the new folder
        $file = $driveService->files->update($fileId, $emptyFileMetadata, array(
            'addParents' => $folderId,
            'removeParents' => $previousParents,
            'fields' => 'id, parents'));
        return $file->parents;
    } catch(Exception $e) {
        echo "Error Message: ".$e;
    }
}

.NET

drive/snippets/drive_v3/DriveV3Snippets/MoveFileToFolder.cs

在 GitHub 上查看

using Google;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Drive.v3;
using Google.Apis.Services;

namespace DriveV3Snippets
{
    // Class to demonstrate use-case of Drive move file to folder.
    public class MoveFileToFolder
    {
        /// <summary>
        /// Move specified file to the specified folder.
        /// </summary>
        /// <param name="fileId">Id of file to be moved.</param>
        /// <param name="folderId">Id of folder where the fill will be moved.</param>
        /// <returns>list of parent ids for the file, null otherwise.</returns>
        public static IList<string> DriveMoveFileToFolder(string fileId,
            string folderId)
        {
            try
            {
                /* Load pre-authorized user credentials from the environment.
                 TODO(developer) - See https://developers.google.com/identity for 
                 guides on implementing OAuth2 for your application. */
                GoogleCredential credential = GoogleCredential.GetApplicationDefault()
                    .CreateScoped(DriveService.Scope.Drive);

                // Create Drive API service.
                var service = new DriveService(new BaseClientService.Initializer
                {
                    HttpClientInitializer = credential,
                    ApplicationName = "Drive API Snippets"
                });

                // Retrieve the existing parents to remove
                var getRequest = service.Files.Get(fileId);
                getRequest.Fields = "parents";
                var file = getRequest.Execute();
                var previousParents = String.Join(",", file.Parents);
                // Move the file to the new folder
                var updateRequest =
                    service.Files.Update(new Google.Apis.Drive.v3.Data.File(),
                        fileId);
                updateRequest.Fields = "id, parents";
                updateRequest.AddParents = folderId;
                updateRequest.RemoveParents = previousParents;
                file = updateRequest.Execute();

                return file.Parents;
            }
            catch (Exception e)
            {
                // TODO(developer) - handle error appropriately
                if (e is AggregateException)
                {
                    Console.WriteLine("Credential Not found");
                }
                else if (e is GoogleApiException)
                {
                    Console.WriteLine("File or Folder not found");
                }
                else
                {
                    throw;
                }
            }
            return null;
        }
    }
}

curl

curl -X PATCH 'https://www.googleapis.com/drive/v3/files/FILE_ID?addParents=NEW_PARENT_ID&removeParents=PREVIOUS_PARENT_ID' \
 -H 'Authorization: Bearer ACCESS_TOKEN' \
 -H 'Accept: application/json'

替换以下内容：

FILE_ID：要移动的文件的 ID。
NEW_PARENT_ID：要将文件移入的文件夹的 ID。
PREVIOUS_PARENT_ID：要从中移除文件的父文件夹的逗号分隔列表。
ACCESS_TOKEN：应用的 OAuth 2.0 令牌。

文件和文件夹限制

云端硬盘文件和文件夹有一些存储空间限制。

用户内容项限制

每个用户最多可以通过该账号创建 5 亿项内容。达到限制后，用户将无法再在云端硬盘中创建或上传内容。他们仍然可以查看和修改现有内容。如需再次创建文件，用户必须永久删除一些内容或使用其他账号。如需了解详情，请参阅将文件和文件夹移至回收站或删除文件和文件夹。

计入此限制的对象包括：

用户在云端硬盘中创建或上传的内容
用户创建但现在归他人所有的内容
回收站中的内容
快捷方式
第三方快捷方式

不计入此限制的对象包括：

永久删除的内容
与用户共享但归他人所有的内容
归用户所有但由他人创建的内容

尝试添加超过 5 亿项内容会返回 activeItemCreationLimitExceeded HTTP 状态代码响应。

请注意，服务账号无法拥有任何文件。相反，它们必须将文件和文件夹上传到共享云端硬盘，或使用 OAuth 2.0 代表人类用户上传内容。

文件夹内容项限制

用户的“我的云端硬盘”中的每个文件夹最多可包含 50 万项内容。此限制不适用于“我的云端硬盘”的根文件夹。计入此限制的内容包括：

文件夹
文件。所有文件类型，无论文件所有权如何。
快捷方式。一个快捷方式计为文件夹中的一项内容，即使它指向的内容并不在该文件夹中。如需了解详情，请参阅创建指向云端硬盘文件的快捷方式。
第三方快捷方式。一个快捷方式计为文件夹中的一项内容，即使它指向的内容并不在该文件夹中。如需了解详情，请参阅创建指向应用存储的内容的快捷方式文件。

如需详细了解文件夹限制，请参阅 Google 云端硬盘中的文件夹限制。

文件夹深度限制

用户的“我的云端硬盘”包含的嵌套文件夹不能超过 100 层。这意味着，子文件夹不能存储在深度超过 99 层的文件夹下。此限制仅适用于子文件夹。MIME 类型不是 MIME 类型的子文件 application/vnd.google-apps.folder不受此限制。

例如，在下图中，一个新文件夹可以嵌套在编号为 99 的文件夹内，但不能嵌套在编号为 100 的文件夹内。不过，编号为 100 的文件夹可以像任何其他云端硬盘文件夹一样存储文件：

云端硬盘文件夹深度限制。

尝试添加超过 100 层文件夹会返回 myDriveHierarchyDepthLimitExceeded HTTP 状态代码响应。

注意：Google Drive API 中没有字段可以返回文件夹的深度。files如需确定文件夹深度，您必须手动向上遍历文件夹层次结构。

创建和填充文件夹 使用集合让一切井井有条 根据您的偏好保存内容并对其进行分类。

创建文件夹

Java

Python

Node.js

PHP

.NET

curl

在特定文件夹中创建文件

Java

Python

Node.js

PHP

.NET

curl

在文件夹之间移动文件

Java

Python

Node.js

PHP

.NET

curl

文件和文件夹限制

用户内容项限制

文件夹内容项限制

文件夹深度限制

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创建和填充文件夹