django裝飾器檢測登錄狀態(tài)操作

def checkLogin(func):
 
  """
  查看session值用來判斷用戶是否已經(jīng)登錄
  :param func:
  :return:
  """
  def warpper(request,*args,**kwargs):
    if request.session.get('username', False):
      return func(request, *args, **kwargs)
 
    else:
      return HttpResponse('/login')
  return warpper

from proApp import models, article, base
@base.checkLogin
def index(request):
  dict = {
    "article_list": article.getArticle(),
  }
  return render(request, 'index.html',dict)

from django.shortcuts import render,render_to_response,redirect
def checkLogin(func):
 
  """
  查看session值用來判斷用戶是否已經(jīng)登錄
  :param func:
  :return:
  """
  def warpper(request,*args,**kwargs):
    if request.session.get('username', False):
      return func(request, *args, **kwargs)

    else:
      return redirect('/login')
  return warpper

from django.views import View
class ClassView(View):
  """類視圖的介紹"""

  def get(self, request):
    """get請(qǐng)求方法"""
    print('get請(qǐng)求方法進(jìn)次函數(shù)')
    return HttpResponse('get請(qǐng)求方法')

  def post(self, request):
    """post請(qǐng)求方法進(jìn)此函數(shù)"""
    print('post請(qǐng)求方法')
    return HttpResponse('post請(qǐng)求方法')
  """
 在url中配置
 """
 urlpatterns = [
  url(r"^classview/$", views.ClassView.as_view())
  #ClassView是一個(gè)類 需要調(diào)用Django自帶的as_view方法轉(zhuǎn)換為view

]

#先在子應(yīng)用文件下新建(自定義).py文件
# 自定義中間鍵
def outer(fuc):
  print('調(diào)用前')
  def inner(*args, **kwargs):
    print('執(zhí)行前')
    data = fuc(*args, **kwargs)
    print(' 執(zhí)行后')
    return data
  return inner
#2. settings.py的middleware下面加入自定義的中間件
'user1.middlewares.outer' # 自定義中間件