Django1.7中注册、登陆、以及cookie的使用

创建项目与应用

#django-admin.pystartproject myadmin

#cd myadmin

#python manage.py startapp online

打开myadmin/myadmin/settings.py文件，将应用添加进去：

设计数据库  

打开myadmin/online/models.py文件，添加如下内容:

from django.db import models

# Create your models here.

class User(models.Model):

    username = models.CharField(max_length=50)

    password = models.CharField(max_length=50)

    def __unicode__(self):

        return self.username

下面进行数据库的同步：

# python manage.py syncdb

Operations toperform:

  Apply all migrations: admin, contenttypes,auth, sessions

Runningmigrations:

  Applying contenttypes.0001_initial... OK

  Applying auth.0001_initial... OK

  Applying admin.0001_initial... OK

  Applying sessions.0001_initial... OK

You haveinstalled Django's auth system, and don't have any superusers defined.

Would you liketo create one now? (yes/no): yes

Username (leaveblank to use 'root'): root

Email address: 135xxx@qq.com

Password:

Password(again):

Superusercreated successfully.

[root@bogonmyadmin]# python manage.py makemigrations

Migrations for'online':

  0001_initial.py:

    - Create model User

[root@bogonmyadmin]# python manage.py migrate

Operations toperform:

  Apply all migrations: admin, contenttypes,sessions, auth, online

Runningmigrations:

  Applying online.0001_initial... OK

配置URL

打开myadmin/myadmin/urls.py：

from django.conf.urls import patterns, include, url

from django.contrib import admin

admin.autodiscover()

urlpatterns = patterns('',

    # Examples:

    # url(r'^$', 'mysite5.views.home', name='home'),

    url(r'^admin/', include(admin.site.urls)),

    url(r'^online/', include('online.urls')),

)

在mysite5/online/目录下创建urls.py文件：

from django.conf.urls import patterns, url

from online import views

urlpatterns = patterns('',

    url(r'^$', views.login, name='login'),

    url(r'^login/$',views.login,name = 'login'),

    url(r'^regist/$',views.regist,name = 'regist'),

    url(r'^index/$',views.index,name = 'index'),

    url(r'^logout/$',views.logout,name = 'logout'),

)

创建视图  

打开myadmin/online/views.py 文件：

#coding=utf-8

from django.shortcuts import render,render_to_response

from django.http import HttpResponse,HttpResponseRedirect

from django.template import RequestContext

from django import forms

from models import User

#表单

class UserForm(forms.Form):

    username = forms.CharField(label='用户名',max_length=100)

    password = forms.CharField(label='密码',widget=forms.PasswordInput())

#注册

def regist(req):

    if req.method == 'POST':

        uf = UserForm(req.POST)

        if uf.is_valid():

            #获得表单数据

            username = uf.cleaned_data['username']

            password = uf.cleaned_data['password']

            #添加到数据库

            User.objects.create(username= username,password=password)

            return HttpResponse('regist success!!')

    else:

        uf = UserForm()

    return render_to_response('regist.html',{'uf':uf}, context_instance=RequestContext(req))

#登陆

def login(req):

    if req.method == 'POST':

        uf = UserForm(req.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进行比较

            user = User.objects.filter(username__exact = username,password__exact = password)

            if user:

                #比较成功，跳转index

                response = HttpResponseRedirect('/online/index/')

                #将username写入浏览器cookie,失效时间为3600

                response.set_cookie('username',username,3600)

                return response

            else:

                #比较失败，还在login

                return HttpResponseRedirect('/online/login/')

    else:

        uf = UserForm()

    return render_to_response('login.html',{'uf':uf},context_instance=RequestContext(req))

#登陆成功

def index(req):

    username = req.COOKIES.get('username','')

    return render_to_response('index.html' ,{'username':username})

#退出

def logout(req):

    response = HttpResponse('logout !!')

    #清理cookie里保存username

    response.delete_cookie('username')

    return response

这里实现了所有注册，登陆逻辑，中间用到cookie创建，读取，删除操作等。

创建模板

先在mysite5/online/目录下创建templates目录，接着在mysite5/online/templates/目录下创建regist.html 文件：

<?xmlversion="1.0" encoding="UTF-8"?>

<!DOCTYPEhtml PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<htmlxmlns="http://www.w3.org/1999/xhtml" xml:lang="en"lang="en">

<head>

    <metahttp-equiv="Content-Type" content="text/html;charset=UTF-8" />

    <title>注册</title>

</head>

<body>

<h2>注册页面：</h2>

<form method= 'post' enctype="multipart/form-data">

    {% csrf_token %}

    `uf`.`as_p`

    <input type="submit" value ="ok" />

</form>

<br>

<ahref="http://127.0.0.1:8000/online/login/">登陆</a>

</body>

</html>

myadmin/online/templates/目录下创建login.html 文件：

<?xmlversion="1.0" encoding="UTF-8"?>

<!DOCTYPEhtml PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<htmlxmlns="http://www.w3.org/1999/xhtml" xml:lang="en"lang="en">

<head>

    <metahttp-equiv="Content-Type" content="text/html;charset=UTF-8" />

    <title>登陆</title>

</head>

<body>

<h2>登陆页面：</h2>

<form method= 'post' enctype="multipart/form-data">

    {% csrf_token %}

    `uf`.`as_p`

    <input type="submit" value ="ok" />

</form>

<br>

<ahref="http://127.0.0.1:8000/online/regist/">注册</a>

</body>

</html>

myadmin/online/templates/目录下创建index.html 文件：

<?xmlversion="1.0" encoding="UTF-8"?>

<!DOCTYPEhtml PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<htmlxmlns="http://www.w3.org/1999/xhtml" xml:lang="en"lang="en">

<head>

    <metahttp-equiv="Content-Type" content="text/html;charset=UTF-8" />

    <title></title>

</head>

<body>

<h2>welcome `username` !</h2>

<br>

<ahref="http://127.0.0.1:8000/online/logout/">退出</a>

</body>

</html>

使用功能

注册

登陆