django中cookie使用及用户认证装饰器

1、创建一个app01, 并在settings.py设置

2、在app01/views.py里面，创建 login、logout、 home等视图

from django.shortcuts import render, redirect, HttpResponse

# Create your views here.

def login_auth(func):
    def inner( request, *args, **kwargs ):
        if request.COOKIES.get("name"):
            return  func(request, *args , **kwargs)
        else:
            old_path = request.get_full_path()
            return redirect("/login/?next=%s" % old_path)
    return inner

def login(request):
    print( request.get_full_path())
    if request.method == "POST":
        username = request.POST.get("username")
        password = request.POST.get("password")
        if username == "egon"  and password == "123":
            old_path =  request.GET.get("next")
            if old_path:
                red = redirect(old_path)
            else:
                red = redirect("/index")
            red.set_cookie("name", "egon")
            return  red
    return render(request, "login.html")

# def index(request):
#     if request.COOKIES.get("name"):
#         return HttpResponse("我是index页面，只有登录的才能访问")
#     path = request.get_full_path()
#     return redirect("/login?next=%s" % path)

@login_auth
def index(request):
    return HttpResponse("我是index页面，只有登录的才能访问")


# def home(request):
#     if request.COOKIES.get("name"):
#         return HttpResponse("我是home页面，只有登录的才能访问")
#     path = request.get_full_path()
#     return redirect("/login?next=%s" % path)

@login_auth
def home(request):
    return HttpResponse("我是home页面，只有登录的才能访问")


def logout(request):
    red = render(request,"login.html")
    red.delete_cookie("name")
    return  red

3、在项目templates下创建模板 login.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<form action="" method="POST">
    <input type="hidden" name="csrfmiddlewaretoken" value="{{ csrf_token }}">
    <p>用户名：<input type="text" name="username"> </p>
    <p>密 码：<input type="password" name="password"> </p>
    <p>用户名：<input type="submit" value="登录"> </p>
</form>

</body>
</html>

4在工程下urls.py里面配置路由

from django.contrib import admin
from django.urls import path
from app01 import  views

urlpatterns = [
    path('admin/', admin.site.urls),
    path("login/", views.login),
    path("index/", views.index),
    path("home/", views.home),
    path("logout/", views.logout)
]

5、登录效果如下

posted on 2019-11-14 15:06 芦苇草鱼阅读(176) 评论(0) 编辑收藏举报