如何找到 request.session sessionid 并将其用作变量？

我知道您可以使用 request.session['variable_name']获取会话变量，但似乎没有一种方法可以以类似的方式获取会话 ID 作为变量。有记录在案吗？我找不到了。

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小开

Django sessions save their key in a cookie. At least its middleware extracts it like this:

from django.conf import settings
session_key = request.COOKIES[settings.SESSION_COOKIE_NAME]
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Use:

request.COOKIES['sessionid']
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最佳答案 
request.session.session_key

Note the key will only exist if there is a session, no key, no session. You can use this to test if a session exists. If you want to create a session, call create.

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This will either get you a session ID or create one for you. If you do dir(request.session), you will get many useful methods.

['TEST_COOKIE_NAME', 'TEST_COOKIE_VALUE', '__class__', '__contains__',
'__delattr__', '__delitem__', '__dict__', '__doc__', '__format__',
'__getattribute__', '__getitem__', '__hash__', '__init__', '__module__',
'__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__',
'__setitem__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__',
'_get_new_session_key', '_get_or_create_session_key', '_get_session',
'_get_session_key', '_hash', '_session', '_session_key', 'accessed',
'clear', 'create', 'cycle_key', 'decode', 'delete', 'delete_test_cookie',
'encode', 'exists', 'flush', 'get', 'get_expire_at_browser_close',
'get_expiry_age', 'get_expiry_date', 'has_key', 'items', 'iteritems',
'iterkeys', 'itervalues', 'keys', 'load', 'modified', 'pop', 'save',
'session_key', 'set_expiry', 'set_test_cookie', 'setdefault',
'test_cookie_worked', 'update', 'values']




session_id = request.session._get_or_create_session_key()
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in Django >= 1.4 use:

request.session._session_key
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In Django 1.8:

request.session.session_key

and

request.session._session_key

Both work correctly.

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To reliably get the session key, you need to make sure the session has been created first. The documentation mentions a .create() session method, which can be used to make sure there's a session key:

def my_view(request):
if not request.session.session_key:
request.session.create()


print(request.session.session_key)
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You can check in your sessions too:

If "var" in request.session:
Var = request.session['var']
Return httpResponse("set")
Else:
Return httpResponse("there isn't")

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