django用户登录和注销的实现方法

[root@yl-web-test srv]# django-admin.py startproject lxysite[root@yl-web-test srv]# cd lxysite/[root@yl-web-test lxysite]# python manage.py startapp accounts[root@yl-web-test lxysite]# lsaccounts lxysite manage.py

INSTALLED_APPS = (  'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.messages', 'django.contrib.staticfiles', # Uncomment the next line to enable the admin: # 'django.contrib.admin', # Uncomment the next line to enable admin documentation: # 'django.contrib.admindocs', 'accounts',)

urlpatterns = patterns('', # Examples: # url(r'^$', 'lxysite.views.home', name='home'), # url(r'^lxysite/', include('lxysite.foo.urls')), # Uncomment the admin/doc line below to enable admin documentation: # url(r'^admin/doc/', include('django.contrib.admindocs.urls')), # Uncomment the next line to enable the admin: # url(r'^admin/', include(admin.site.urls)), url(r'^accounts/', include('accounts.urls')),)

[root@yl-web-test lxysite]# mkdir templates[root@yl-web-test lxysite]# lsaccounts lxysite manage.py templates

TEMPLATE_DIRS = (  # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates". # Always use forward slashes, even on Windows. # Don't forget to use absolute paths, not relative paths. '/srv/lxysite/templates',)

mysql> create database lxysite;Query OK, 1 row affected (0.00 sec)

DATABASES = {  'default': {  'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.  'NAME': 'lxysite',      # Or path to database file if using sqlite3.  'USER': 'root',      # Not used with sqlite3.  'PASSWORD': 'password',     # Not used with sqlite3.  'HOST': '10.1.101.35',      # Set to empty string for localhost. Not used with sqlite3.  'PORT': '3306',      # Set to empty string for default. Not used with sqlite3. } }

[root@yl-web-test lxysite]# python manage.py syncdbCreating tables ...Creating table auth_permissionCreating table auth_group_permissionsCreating table auth_groupCreating table auth_user_user_permissionsCreating table auth_user_groupsCreating table auth_userCreating table django_content_typeCreating table django_sessionCreating table django_siteYou just installed Django's auth system, which means you don't have any superusers defined.Would you like to create one now? (yes/no): yesUsername (leave blank to use 'root'): liuxiaoyanE-mail address: liuxiaoyan@test.comPassword: Password (again): Superuser created successfully.Installing custom SQL ...Installing indexes ...Installed 0 object(s) from 0 fixture(s)

INSTALLED_APPS = (  'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.messages', 'django.contrib.staticfiles', # Uncomment the next line to enable the admin: # 'django.contrib.admin', # Uncomment the next line to enable admin documentation: # 'django.contrib.admindocs', 'bootstrap_toolkit', 'accounts',)

#coding=utf-8from django import formsfrom django.contrib.auth.models import Userfrom bootstrap_toolkit.widgets import BootstrapDateInput,BootstrapTextInput,BootstrapUneditableInputclass LoginForm(forms.Form): username = forms.CharField(   required = True,   label=u"用户名",   error_messages={'required':'请输入用户名'},   widget=forms.TextInput(    attrs={     'placeholder':u"用户名",     }     )    )  password = forms.CharField(   required=True,   label=u"密码",   error_messages={'required':u'请输入密码'},   widget=forms.PasswordInput(    attrs={     'placeholder':u"密码",     }     ),    )  def clean(self):  if not self.is_valid():   raise forms.ValidationError(u"用户名和密码为必填项")  else:   cleaned_data = super(LoginForm,self).clean()

# Create your views here.from django.shortcuts import render_to_response,render,get_object_or_404 from django.http import HttpResponse, HttpResponseRedirect from django.contrib.auth.models import User from django.contrib import authfrom django.contrib import messagesfrom django.template.context import RequestContext from django.forms.formsets import formset_factoryfrom django.core.paginator import Paginator, PageNotAnInteger, EmptyPagefrom bootstrap_toolkit.widgets import BootstrapUneditableInputfrom django.contrib.auth.decorators import login_requiredfrom forms import LoginFormdef login(request): if request.method == 'GET':  form = LoginForm()  return render_to_response('login.html',RequestContext(request,{'form':form,})) else:  form = LoginForm(request.POST)  if form.is_valid():   username = request.POST.get('username','')   password = request.POST.get('password','')   user = auth.authenticate(username=username,password=password)   if user is not None and user.is_active:    auth.login(request,user)    return render_to_response('index.html',RequestContext(request))   else:    return render_to_response('login.html',RequestContext(request,{'form':form,'password_is_wrong':True}))  else:   return render_to_response('login.html',RequestContext(request,{'form':form,}))

<!DOCTYPE html>{% load bootstrap_toolkit %}{% load url from future %}<html lang="en"><head> <meta charset="utf-8"> <title>数据库脚本发布系统</title> <meta name="description" content=""> <meta name="author" content="朱显杰"> {% bootstrap_stylesheet_tag %} {% bootstrap_stylesheet_tag "responsive" %} <style type="text/css">  body {   padding-top: 60px;  }  </style> <!--[if lt IE 9]> <script src="//html5shim.googlecode.com/svn/trunk/html5.js"></script> <![endif]--> <!-- <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>--> {% bootstrap_javascript_tag %} {% block extra_head %}{% endblock %}</head><body> {% if password_is_wrong %}  <div class="alert alert-error">   <button type="button" class="close" data-dismiss="alert">×</button>   <h4>错误!</h4>用户名或密码错误  </div> {% endif %}  <div class="well">  <h1>数据库脚本发布系统</h1>  <p>?</p>  <form class="form-horizontal" action="" method="post">   {% csrf_token %}   {{ form|as_bootstrap:"horizontal" }}   <p class="form-actions">    <input type="submit" value="登录" class="btn btn-primary">    <a href="/contactme/"><input type="button" value="忘记密码" class="btn btn-danger"></a>    <a href="/contactme/"><input type="button" value="新员工？" class="btn btn-success"></a>   </p>  </form> </div></body></html>

from django.conf.urls import *from accounts.views import login,logout urlpatterns = patterns('',         url(r'login/$',login),               )

<!DOCTYPE html>{% load bootstrap_toolkit %}<html lang="en">{% bootstrap_stylesheet_tag %}{% bootstrap_stylesheet_tag "responsive" %}<h1>登录成功</h1><a href="/accounts/logout/"><input type="button" value="登出" class="btn btn-success"></a></html>

from django.conf.urls import *from accounts.views import login,logout urlpatterns = patterns('',         url(r'login/$',login),         url(r'logout/$',logout),               )

@login_requireddef logout(request): auth.logout(request) return HttpResponseRedirect("/accounts/login/")