根据搜索词从google驱动器文件夹中检索文件

Question

我对google drive的工作非常陌生，我很清楚我不能要求stackoverflow提供下面场景的完整示例，但是如果你能指导我做一些类似的事情，那将会非常有帮助。我被困住了，无法继续前进。

我已经上传了7-8 gb的pdf文件的内容，其中包括pdf，docx，ppt等在谷歌驱动器。我关心的是列出包含用户查询的术语的所有文件。例如，如果我想搜索'computer vision using google drive api‘，那么结果应该包含包含术语'computer vision’的文件列表。

当我在google drive搜索框中输入一些东西时，上面的场景是可能的，下面是屏幕截图。

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当我键入机器学习时，我会得到文件列表。如何通过编程检索相同的结果。我读过google drive api的文档，偶然发现syntac的‘全文本包含术语’，但我不知道如何使用它。

Answer 1

正如您正确地说过的，一种简单的方法是使用请求的q参数和fullText contains X操作符。下面您可以从使用此功能的参考资料中看到Python Quickstart的改编：

from __future__ import print_function
import pickle
import os.path
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request

# If modifying these scopes, delete the file token.pickle.
SCOPES = ['https://www.googleapis.com/auth/drive.metadata.readonly']

def main():
    """Shows basic usage of the Drive v3 API.
    Prints the names and ids of the first 10 files the user has access to.
    """
    creds = None
    # The file token.pickle stores the user's access and refresh tokens, and is
    # created automatically when the authorization flow completes for the first
    # time.
    if os.path.exists('token.pickle'):
        with open('token.pickle', 'rb') as token:
            creds = pickle.load(token)
    # If there are no (valid) credentials available, let the user log in.
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        else:
            flow = InstalledAppFlow.from_client_secrets_file(
                'credentials.json', SCOPES)
            creds = flow.run_local_server(port=0)
        # Save the credentials for the next run
        with open('token.pickle', 'wb') as token:
            pickle.dump(creds, token)

    service = build('drive', 'v3', credentials=creds)

    # Call the Drive v3 API
    results = service.files().list(
        pageSize=1000, fields="nextPageToken, files(id, name)", q="fullText contains 'computer vision'").execute()
    items = results.get('files', [])

    if not items:
        print('No files found.')
    else:
        print('Files:')
        for item in items:
            print(u'{0} ({1})'.format(item['name'], item['id']))

if __name__ == '__main__':
    main()

注意调用service.files().list()方法时的q参数。

参考文献

• Google Drive API - Search for Files
• Python Drive API v3 reference - list()