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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：