django中间件不工作，但如果我使用装饰它的工作原理

Question

运行python 2.7 Django 1.6这是我的代码：

我的settings.py

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'gest.middleware.RequireLoginMiddleware',
    'gest.NeedCnd.NeedCndSelectedMiddleware',
    'gest.NeedEf.NeedEfSelectedMiddleware',
)

NEED_CND_URLS= (
    r'/tab/(.*)$',
    r'/ric/(.*)$',
    r'/prev/(.*)$',
    r'/ese/(.*)$',
)

NEED_EF_URLS= (
    r'/ric/(.*)$',
    r'/prev/(.*)$',
)

LOGIN_REQUIRED_URLS = (
    r'/cnd/(.*)$',
    r'/cap/(.*)$',
    r'/tab/(.*)$',
    r'/ric/(.*)$',
    r'/prev/(.*)$',
    r'/ese/(.*)$',
)

#this is my NeedEf.py
## -*- coding: iso-8859-1 -*-
import re
from django.shortcuts import render_to_response
from django.conf import settings
from django.template import RequestContext
class NeedEfSelected(object):
    def __init__(self, orig_func):
        self.orig_func = orig_func

    def __call__(self, request, *args, **kwargs):
        if request.session.get('sel_esercizio',9999) != 9999: 
            return self.orig_func(request, *args, **kwargs)
        else:
            mess=" e\' necessario selezionare prima un esercizio;"
            d= {'mess': mess, 'redir':'/ese/', 'class':'wrn'}
            return render_to_response('generic_mess.html',d,
                                   context_instance=RequestContext(request))
class NeedEfSelectedMiddleware(object):
    def __init__(self):
        self.required = tuple([re.compile(url) for url in settings.NEED_EF_URLS])
    def process_view(self,request,view_func,view_args,view_kwargs):
        # No need to process URLs if user already logged in
        for url in self.required:
            if url.match(request.path):
                return NeedEfSelected(view_func)(request,*view_args,**view_kwargs)
        return None

当我访问mysite.net/prev/或mysite.net/ric/时，url.match（request.path）结果为False，因此不会调用NeedEfSelected。任何帮助将不胜感激。

解决！

雅皮士！我解决了自己！我被误解了。这个中间件之前是另一个。像这样的第一个有一个错误：  返回self.orig_func（请求，* args，** kwargs）

应替换为返回无

因为中间件的逻辑可以使用。实际上，中间件按顺序执行，当所有测试通过时，返回None ，或者当您需要修改调用的url的正常执行时， HttpResponse 。它得到了很好的解释  https://docs.djangoproject.com/en/dev/topics/http/middleware/ 但我很快就冲浪了