urls.py
from django.conf.urls import url
from django.contrib import admin
from app01 import views
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^login/', views.login, name='login'),
url(r'^index/', views.index, name='index'),
url(r'^logout/', views.logout, name='logout'),
]
views.py
# -*- coding:utf-8 -*-
from django.shortcuts import render, redirect
# Create your views here.
user_info = {
'lily': {'pwd': '123'},
'rose': {'pwd': '123'}
}
def login(request):
if request.method == 'POST':
u = request.POST.get('uu')
p = request.POST.get('pp')
s = request.POST.get('ss')
if user_info.get(u):
if p == user_info.get(u).get('pwd'):
# 生成随机字符串保存在cookie中 sessionid : xxxxx
# 保存在session中（数据库）
# 在服务端,每个随机字符串对应一个字典,保存信息
request.session['user111'] = u
request.session['is_login'] = True
# 设置自动注销登录
if s == '1':
# 括号中数字单位为秒
request.session.set_expiry(5)
elif s == '2':
request.session.set_expiry(20)
elif s == '3':
request.session.set_expiry(60)
return redirect('/index/')
return render(request, 'login.html')
def index(request):
u = request.session.get('user111')
if request.session.get('is_login', None):
return render(request, 'index.html', {'u': u})
else:
return render(request, 'login.html')
def logout(request):
request.session.clear()
return redirect('/login/')
template-login
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<form action="/login/" method="post">
{% csrf_token %}
<p><input type="text" placeholder="username" name="uu" /></p>
<p><input type="password" placeholder="password" name="pp" /></p>
<p>自动退出登录时间:
<select name="ss">
<option value="1">5s</option>
<option value="2">20s</option>
<option value="3">1m</option>
</select></p>
<input type="submit" value="提交" />
</form>
</body>
</html>
template-index
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
welcome to {{ u }}
<a href="/logout/">exit</a>
</body>
</html>
