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