Django异常中间件:TypeError:object()不接受任何参数
我正在使用Django 1.10,并试图用异常中间件捕获所有异常 以下代码导致内部服务器错误:Django异常中间件:TypeError:object()不接受任何参数,django,django-middleware,Django,Django Middleware,我正在使用Django 1.10,并试图用异常中间件捕获所有异常 以下代码导致内部服务器错误: mw_instance = middleware(handler) TypeError: object() takes no parameters views.py from django.http import HttpResponse def my_view(request): x = 1/0 # cause an exception return HttpResponse("
mw_instance = middleware(handler)
TypeError: object() takes no parameters
views.py
from django.http import HttpResponse
def my_view(request):
x = 1/0 # cause an exception
return HttpResponse("ok")
设置.py
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'myproject.middleware.ExceptionMiddleware',
]
中间件.py
from django.http import HttpResponse
class ExceptionMiddleware(object):
def process_exception(self, request, exception):
return HttpResponse("in exception")
我已经看到了这些和其他关于中间件与中间件类的问题,但我不确定这如何适用于这种情况,或者我实际上需要更改什么来解决这个问题。因为您正在使用新的
中间件设置,所以您的中间件类必须接受get\u response
参数:
您可以这样编写您的类:
from django.http import HttpResponse
class ExceptionMiddleware(object):
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
return self.get_response(request)
def process_exception(self, request, exception):
return HttpResponse("in exception")
您还可以使用MiddlewareMixin
使您的中间件与1.10之前和1.10之后的Django版本兼容:
在较新版本的Django中,中间件应该这样编写
import datetime
from django.core.cache import cache
from django.conf import settings
from django.utils.deprecation import MiddlewareMixin
class ActiveUserMiddleware(MiddlewareMixin):
def process_request(self, request):
current_user = request.user
if request.user.is_authenticated:
now = datetime.datetime.now()
cache.set('seen_%s' % (current_user.username), now,
settings.USER_LASTSEEN_TIMEOUT)
使用MiddlewareMixin
修复了我的问题。Django1.11中的MiddlewareMixin将无法确定请求。用户
。它返回匿名消息@Sarit的评论有多真实?修复方法是什么?@Phares当时我很好奇,做了一个私人实验。我没有修理任何东西。通常我在ViewSet
中只需添加MiddlewareMixin
就可以了。甚至不需要触摸初始化和调用函数。请提供版本好吗?我认为这可能是Django 3.0.2版的有用信息
import datetime
from django.core.cache import cache
from django.conf import settings
from django.utils.deprecation import MiddlewareMixin
class ActiveUserMiddleware(MiddlewareMixin):
def process_request(self, request):
current_user = request.user
if request.user.is_authenticated:
now = datetime.datetime.now()
cache.set('seen_%s' % (current_user.username), now,
settings.USER_LASTSEEN_TIMEOUT)