本文实例讲述了Django框架使用内置方法实现登录功能。分享给大家供大家参考，具体如下：
一 内置登录退出思维导图
二 Django内置登录方法
1 位置
2 源码
@deprecate_current_app @sensitive_post_parameters() @csrf_protect @never_cache # 视图函数要渲染的模板位置（registration/login.html） def login(request, template_name='registration/login.html', redirect_field_name=REDIRECT_FIELD_NAME, authentication_form=AuthenticationForm, extra_context=None, redirect_authenticated_user=False): """ Displays the login form and handles the login action. """ redirect_to = request.POST.get(redirect_field_name, request.GET.get(redirect_field_name, '')) if redirect_authenticated_user and request.user.is_authenticated: redirect_to = _get_login_redirect_url(request, redirect_to) if redirect_to == request.path: raise ValueError( "Redirection loop for authenticated user detected. Check that " "your LOGIN_REDIRECT_URL doesn't point to a login page." ) return HttpResponseRedirect(redirect_to) elif request.method == "POST": form = authentication_form(request, data=request.POST) if form.is_valid(): auth_login(request, form.get_user()) return HttpResponseRedirect(_get_login_redirect_url(request, redirect_to)) else: form = authentication_form(request) current_site = get_current_site(request) context = { 'form': form, redirect_field_name: redirect_to, 'site': current_site, 'site_name': current_site.name, } if extra_context is not None: context.update(extra_context) return TemplateResponse(request, template_name, context)
三 实战一
1 编辑mysite/account/urls.py
from django.conf.urls import url from . import views from django.contrib.auth import views as auth_views urlpatterns = [ # 自定义登录 # url(r'^login/$', views.user_login, name='user_login'), # django内置的登录 url(r"^login/$", auth_views.login, name="user_login"), ]
2 因为默认的模板位置为registration/login.html，因此我们创建该文档如下：
{% extends "base.html" %} {% block title %}登录{% endblock %} {% block content %}
登录
请输入用户名和密码
{% csrf_token %}Username
{{ form.username }}
Password
{{ form.password }}
{% endblock %}3 修改mysite/mysite/settings.py
# 登录后重定向到http://localhost:8000/blog/页面 LOGIN_REDIRECT_URL = '/blog/'
4 测试
四 实战二
1 编辑mysite/account/urls.py
from django.conf.urls import url from . import views from django.contrib.auth import views as auth_views urlpatterns = [ # 自定义登录 # url(r'^login/$', views.user_login, name='user_login'), # django内置的登录 url(r"^login/$", auth_views.login, name="user_login"), url(r"^new-login/$", auth_views.login, {"template_name": "account/login.html"}), ]
2 测试
希望本文所述对大家基于Django框架的Python程序设计有所帮助。
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