django快速实现完整登录系统，把登陆注册串在一起并增加cookie（六）

1.使用之前创建的项目和应用 mysite3 account

2.使用之前的数据库构造

class User(models.Model):
username=models.CharField(max_length=50)
password=models.CharField(max_length=50)
email=models.EmailField()

def __unicode__(self):
return self.username

class UserAdmin(admin.ModelAdmin):
list_display=('username','email')

admin.site.register(User,UserAdmin)

3.使用之前的项目urls.py

from django.conf.urls import url,include
from django.contrib import admin

admin.autodiscover()

urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^account/', include('account.urls')),
]

应用的urls.py

from django.conf.urls import url
from account import views

urlpatterns=[
url(r'^$',views.login,name='login'),　　　　　　　　　　
url(r'^register/$',views.register,name='register'),　
url(r'^login/$',views.login,name='login'),　　　　　　
url(r'^index/$',views.index,name = 'index'),　　　　　　
url(r'^logout/$',views.logout,name = 'logout'),　　　　
]

http://127.0.0.1:8000/online/ 登陆页

http://127.0.0.1:8000/online/login/ 登陆页

http://127.0.0.1:8000/online/register/ 注册页

http://127.0.0.1:8000/online/index/ 登陆成功页

http://127.0.0.1:8000/online/logout/ 注销

4.修改views.py

# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.shortcuts import render,render_to_response
from django.template import loader,Context,RequestContext
from django.http import HttpResponse,HttpResponseRedirect
from django import forms
from account.models import User

# Create your views here.

#定义表单模型 —— 在页面上显示的输入框
class UserForm(forms.Form):
username=forms.CharField(label='用户名：',max_length=100)
password=forms.CharField(label='密码：',widget=forms.PasswordInput())
email=forms.EmailField(label='电子邮件：')

class User2Form(forms.Form):
username=forms.CharField(label='用户名：',max_length=100)
password=forms.CharField(label='密码：',widget=forms.PasswordInput())

#注册
def register(request):

if request.method=='POST':
uf=UserForm(request.POST)
if uf.is_valid():
#获取表单信息
username=uf.cleaned_data['username']
password=uf.cleaned_data['password']
email=uf.cleaned_data['email']
#将表单数据写入数据库
#user=User()
#user.username=username
#user.password=password
#user.email=email
#user.save()
User.objects.create(username= username,password=password,email=email)
#url不变，跳到新页面显示register success
return HttpResponse('register success!!!')

else:
uf=UserForm()
#注册失败，重新回到注册页，最后一截的意思是显示用户输入用户名密码
#render_to_response()加载模板 返回 HttpResponse 对象,因此我们仅需在视图中return 该值
return render_to_response('register.html',{'uf':uf})

#登陆
def login(request):

if request.method=='POST':
uf =User2Form(request.POST)
if uf.is_valid():
#获取表单用户密码
username=uf.cleaned_data['username']
password=uf.cleaned_data['password']
#获取的表单数据与数据库做比较
user=User.objects.filter(username__exact=username,password__exact=password)
if user:
#比较成功，跳转index
response=HttpResponseRedirect('/account/index/')
#将username写入浏览器cookie，失效时间未3600
response.set_cookie('username',username,3600)
return response
else:
#比较失败，回到login
return HttpResponseRedirect('account/login/')
else:
uf=User2Form()
return render_to_response('login.html',{'uf':uf})

#登陆成功
def index(request):
username=request.COOKIES.get('username','')
return render_to_response('index.html',{'username':username})

#退出
def logout(request):
response=HttpResponse('logout!!!')
#清理cookie里保存的username
response.delete_cookie('username')
return response

　　

5.创建模板