Django #基于cookie/session的用户认证

views.py

from django.shortcuts import render,HttpResponse,redirect

# Create your views here.
user_info = {
    'admin':{'pwd':'111111'},
    'user2':{'pwd':'123123'}
}
def login(request):
    if request.method =='GET':
        return render(request,'login.html')  #请求login.index的页面渲染。usl还是http://127.0.0.1:8000/login/
    if request.method =='POST':
        u = request.POST.get('username')
        p = request.POST.get('pwd')
        dic=user_info.get(u)
        if not dic:
            return render(request,'login.html') #请求login.index的页面渲染。usl还是http://127.0.0.1:8000/login/login.html
        if dic['pwd']==p:
            res = redirect('/index/')        #重定向,请求的Url变成http://127.0.0.1:8000/index/
            res.set_cookie('username',u)
            return res
        else:
            return render(request,'login.html')

def index(request):
    v = request.COOKIES.get('username')
    if not v:
        return redirect('/login/')           #重定向,请求的Url变成http://127.0.0.1:8000/login/
    else:
        return render(request,'index.html',{'current_user':v})

login.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="login.html" method="POST">
        <input type="text" name='username' placeholder="用户名">
        <input type="text" name='pwd' placeholder="密码">
        <input type="submit" value="登录">
        <input type="button" value="提交">

    </form>

</body>
</html>

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <p>Welcome {{ current_user }}</p>
</body>
</html>

urls.py

"""lwslws URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/1.11/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.conf.urls import url, include
    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import url
from django.contrib import admin
from apps01 import views

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^login/', views.login),
    url(r'^index/', views.index),
]

 

浏览器展示：

 

 

 

Session：

def login(request):
    if request.method =='GET':
        return render(request,'login.html')
    if request.method =='POST':
        u = request.POST.get('username')
        p = request.POST.get('pwd')
        if u =='root' and p =='123':
　　　　　　　#session是依赖于cookie
            #生成随机字符串
            #写到用户浏览器的cookie中
　　　　　　  #保存到session中
   　　　　　 #在随机字符串对应的字典中设置相关内容
             #request.session做了以上的事情
            request.session['username']=u
            request.session['is_login']=True
            return redirect('/index/')
        else:
            return render(request,'login.html')


def index(request):
    if request.session['is_login']:
        return render(request,'index.html')
    else:
        return HttpResponse('Gun!')

 

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posted @ 2017-09-24 13:24  陈奕迅-可以了  阅读(192)  评论(0)  编辑  收藏  举报