Django 攔截器

創建攔截器后，所有通信都會先走攔截器，然后再去訪問urls

django中攔截器的創建

#### setting 中配置
MIDDLEWARE_CLASSES = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'documents.myMiddleware.FilterMiddleware',     # 配置攔截器路徑
]

#### myMiddleware 攔截器文件
# -*- coding: utf-8 -*-

from django.http import HttpResponseRedirect,HttpResponse

from django.shortcuts import render
try:
    from django.utils.deprecation import MiddlewareMixin  # Django 1.10.x
except ImportError:
    MiddlewareMixin = object  # Django 1.4.x - Django 1.9.x



class FilterMiddleware(MiddlewareMixin):
    def process_request(self, request):
        print request.path
        # 填上所有不攔截的一級路由
        if request.path.startswith("/xxx") == True or request.path.startswith("/xxx") == True or request.path.startswith("/xxx") == True or request.path.startswith("/xxx") == True or request.path.startswith("/xxx") == True or request.path.startswith("/xxx") == True or request.path.startswith("/xxx") == True:
            pass
        else:
            # return HttpResponse("404")
            return render(request, "xxx/xxx/404.html")