我目前正在使用gspread在Web服务器上不断访问Google表格文档。
它托管在Flask Web服务器（apache WSGI）上，因此与Google的连接必须连续且持续进行身份验证。
我有一个问题，几个小时后，我需要重新生成图书对象（重新验证）或者我会得到这个问题（见下文）。
以下是我为解决这个问题所做的工作，但我仍然遇到同样的问题，并且想知道你是否有任何想法。
有5-6个不同的工作表，我正在创建一个具有不同方法的类来访问每个工作表（所有工作都继承自Access）。
book = authorise()
employee, shift, clock, client, payment = Employee(book), Shift(book),
Clock(book), Client(book), Payment(book)
def refresh_google_access(self): #CALLED EVERY 40 MINUTES
book = authorise()
employee._refresh(book)
shift._refresh(book)
clock._refresh(book)
client._refresh(book)
payment._refresh(book)
def authorise():
scope = ['https://spreadsheets.google.com/feeds']
credentials = ServiceAccountCredentials.from_json_keyfile_name('clocker/access.json', scope)
gc = gspread.authorize(credentials)
book = gc.open_by_key(SHEET_KEY)
return book
class Access:
def _refresh(self, book):
self.__init__(book)
class Employee(Access):
def __init__(self, book):
self.sheet = book.worksheet("Employee List")
...
class Clock(Access):
def __init__(self, book):
self.sheet = book.worksheet("Time Log")
...
class Shift(Access):
def __init__(self, book):
self.sheet = book.worksheet("Shift List")
...
class Client(Access):
def __init__(self, book):
self.sheet = book.worksheet("Client List")
...
class Payment(Access):
def __init__(self, book):
self.sheet = book.worksheet("Payments")
...
几个小时后（4-24小时之间），我会收到此错误：
Traceback (most recent call last):
File "/home/ve/lib/python3.4/site-packages/flask/app.py", line 2292, in wsgi_app
response = self.full_dispatch_request()
File "/home/ve/lib/python3.4/site-packages/flask/app.py", line 1815, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/home/ve/lib/python3.4/site-packages/flask/app.py", line 1718, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/home/ve/lib/python3.4/site-packages/flask/_compat.py", line 35, in reraise
raise value
File "/home/ve/lib/python3.4/site-packages/flask/app.py", line 1813, in full_dispatch_request
rv = self.dispatch_request()
File "/home/ve/lib/python3.4/site-packages/flask/app.py", line 1799, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/var/www/clocker/clocker/routes.py", line 43, in voice
clocked_in = clock.is_clocked_in(id)
File "/var/www/clocker/clocker/sheet_access.py", line 115, in is_clocked_in
latest_clock_in = self.get_latest_clock_in(id)
File "/var/www/clocker/clocker/sheet_access.py", line 107, in get_latest_clock_in
result = self.sheet.findall(str(id))
File "/home/ve/lib/python3.4/site-packages/gspread/models.py", line 814, in findall
return list(self._finder(filter, query))
File "/home/ve/lib/python3.4/site-packages/gspread/models.py", line 779, in _finder
data = self.spreadsheet.values_get(self.title)
File "/home/ve/lib/python3.4/site-packages/gspread/models.py", line 110, in values_get
r = self.client.request('get', url, params=params)
File "/home/ve/lib/python3.4/site-packages/gspread/client.py", line 79, in request
raise APIError(response)
gspread.exceptions.APIError: {
"error": {
"code": 401,
"message": "Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.",
"status": "UNAUTHENTICATED"
}
}
只需重新启动服务器，几乎每次都可以修复此问题。
重新生成书籍对象似乎无法解决问题，我已经检查过该书的id每40分钟更改一次。
如果我理解正确，在我的使用中，我会抓住gc并在需要数据时调用book = gc.open_by_key(SHEET_KEY)。
基本上不是将book保存为全局变量，而是保存gc，以便保留先前经过身份验证的会话并用于进一步的请求。