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使用cbv实现视图
from django.views import View
from django.utils.decorators import method_decorator
class LoginView(View):
def get(self, request):
return render(request, "login.html")
def post(self, request):
user = request.POST.get("name")
pwd = request.POST.get("pwd")
if user == "safly" and pwd == "123":
# 登陆成功
# 写session
request.session["user2"] = user
request.session.set_expiry(5)
return redirect("/index/")
def index(request):
return render(request,"index.html")
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CBV结合装饰器
直接加在视图类上，但method_decorator必须传 name 关键字参数
from django.views import View
from django.utils.decorators import method_decorator
def wrapper(func):
@wraps(func)
def inner(request, *args, **kwargs):
# 登录校验
cookie_k = request.session.get("user01", None)
if cookie_k:
# 表示已经登录的用户
ret = func(request, *args, **kwargs)
return ret
else:
# 滚去登录
return redirect("/login/")
return inner
class LoginView(View):
def get(self, request):
return render(request, "login.html")
def post(self, request):
user = request.POST.get("name")
pwd = request.POST.get("pwd")
if user == "safly" and pwd == "123":
# 登陆成功
# 写session
request.session["user01"] = user
# request.session.set_expiry(5)
return redirect("/index/")
@method_decorator(wrapper, name="get")
class IndexView(View):
def get(self, request):
user = request.session.get("user01", "游客")
return render(request, "index.html", {"user": user})
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* 加在CBV视图的get或post方法上*
# @method_decorator(wrapper, name="get")
class IndexView(View):
@method_decorator(wrapper)
def get(self, request):
user = request.session.get("user02", "游客")
return render(request, "index.html", {"user": user})
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* 加在dispatch方法上*
# @method_decorator(wrapper, name="get")
class IndexView(View):
## 这么写所有的请求方法都要做登录校验
@method_decorator(wrapper)
def dispatch(self, request, *args, **kwargs):
return super(IndexView,self).dispatch(request,*args,**kwargs)
# @method_decorator(wrapper)
def get(self, request):
user = request.session.get("user04", "游客")
return render(request, "index.html", {"user": user})
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CSRF Token
CSRF Token相关装饰器在CBV只能加到dispatch方法上
备注：
csrf_protect，为当前函数强制设置防跨站请求伪造功能，即便settings中没有设置全局中间件。
csrf_exempt，取消当前函数防跨站请求伪造功能，即便settings中设置了全局中间件
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from django.views.decorators.csrf import csrf_exempt, csrf_protect
class HomeView(View):
@method_decorator(csrf_exempt)
def dispatch(self, request, *args, **kwargs):
return super(HomeView, self).dispatch(request, *args, **kwargs)
def get(self, request):
return render(request, "home.html")
def post(self, request):
print("Home View POST method...")
return redirect("/index/")
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