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
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@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)
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三 实战一
1 编辑mysite/account/urls.py
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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" ),
]
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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:
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{ % extends "base.html" % }
{ % block title % }登录{ % endblock % }
{ % block content % }
<div class = "row text-center vertical-middle-sm" >
<h1>登录< / h1>
<p>请输入用户名和密码< / p>
<! - - 用具体的url指明了数据的post目标 - - >
<form class = "form-horizontal" action = "{% url 'account:user_login' %}" method = "post" >
{ % csrf_token % }
<! - - 每个表单元素在一对p标签内 - - >
<! - - {{ form.as_p }} - - >
<! - - 使用bootstrap样式使得表单更美丽 - - >
<div class = "form-group" >
<label for = "{{ form.username.id_for_label }}" class = "col-md-5 control-label" style = "color:red" ><span class = "glyphicon glyphicon-user" >< / span>username< / label>
<div class = "col-md-6 text-left" >{{ form.username }}< / div>
< / div>
<div class = "form-group" >
<label for = "{{ form.password.id_for_label }}" class = "col-md-5 control-label" style = "color:blue" ><span class = "glyphicon glyphicon-floppy-open" >< / span>password< / label>
<div class = "col-md-6 text-left" >{{ form.password }}< / div>
< / div>
< input type = "submit" value = "login" >
< / form>
< / div>
{ % endblock % }
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3 修改mysite/mysite/settings.py
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# 登录后重定向到http://localhost:8000/blog/页面
login_redirect_url = '/blog/'
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4 测试
四 实战二
1 编辑mysite/account/urls.py
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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" }),
]
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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。
原文链接:https://blog.csdn.net/chengqiuming/article/details/85106234