Django之Cookie
目录
介绍
当我们上网使用社交媒体或者购物时，浏览器需要通过一种方式来记住我们。想象一下你进入一家商店，店员会将一张带有身份信息的会员卡片递给你，并让你每次进店时都将卡片带在身上，这张小卡片就是Cookie
Cookie是由服务器发送到用户的浏览器中的小型文本文件，它存储在用户的计算机上，方便用户每次访问同一个浏览器页面时能够让服务器对其识别
Django操作Cookie
三板斧中的redirect HttpResponse render对象都可以操作Cookie
设置Cookie
python
def test(request):
# response设置为响应对象
response = HttpResponse()
# 为该对象绑定Cookie并赋值
response.set_cookie('name','Paul')
# 将有Cookie的响应对象返回给web端
return response浏览器查看Cookie
获取Cookie
python
def test2(request):
my_cookie = request.COOKIES.get('name')
print(my_cookie)
return HttpResponse('ok')
python
# 输出：Paul设置超时Cookie
python
# 设置超时Cookie
def test(request):
response = HttpResponse()
response.set_cookie('name', 'Paul',max_age=5)
return response
# 间隔五秒获取两次Cookie
def test2(request):
my_cookie = request.COOKIES.get('name')
print(my_cookie)
time.sleep(5)
print(my_cookie)
return HttpResponse('ok')
python
# 输出：Paul
# None注销Cookie
python
def test2(request):
# 将浏览器重定向的同时注销Cookie
response = redirect('home')
response.delete_cookie('name')
return response模拟登录验证
python
def test(request):
form_obj = UserForm()
user = request.POST.get('user')
pwd = request.POST.get('pwd')
if user =='123123' and pwd == '123123':
response = HttpResponse('登录成功')
response.set_cookie('user','123123')
return response
return render(request,'app01/register.html',locals())
def test2(request):
response = redirect('home')
if request.COOKIES.get('user'):
return response
return HttpResponse('请先登录')登录验证装饰器
python
def check_cookie(func):
def inner(request, *args, **kwargs):
if request.COOKIES.get('user'):
res = func(request, *args, **kwargs)
return res
else:
return HttpResponse('请先登录')
return inner
@check_cookie
def test2(request):
response = redirect('home')
return render(request, 'app01/home.html')登录验证装饰器-升级版
python
def login(request):
form_obj = UserForm()
user = request.POST.get('user')
pwd = request.POST.get('pwd')
if user == '123123' and pwd == '123123':
# 获取Cookie后直接重定向到url中next的路由，如果没有则返回home
response = redirect(request.GET.get('next', 'home'))
response.set_cookie('user', '123123')
return response
return render(request, 'app01/register.html', locals())
def check_cookie(func):
def inner(request, *args, **kwargs):
target_url = request.get_full_path()
if request.COOKIES.get('user') == '123123':
res = func(request, *args, **kwargs)
return res
else:
return redirect(f'/app01/test/?next={target_url}')
return inner
@check_cookie
def home(request):
return HttpResponse('这里是home界面')