login logout

落日映苍穹つ 2022-07-15 07:28 170阅读 0赞

from django.http import HttpResponseRedirect
    from django.http import HttpResponse
    from django.shortcuts import render_to_response
    
    
    def login(request):
        username = request.POST.get('username', None)
        if username:
            request.session['username'] = username
        username = request.session.get('username', None)
        if username:
            return render_to_response('login.html', {
      'username':username})
        else:
            return render_to_response('login.html')
    
    def logout(request):
        try:
            if request.session.get('username', None):
                del request.session['username']
            else:
                return HttpResponse("No User Logged!")
        except KeyError:
            #return HttpResponse("KeyError")
            pass
        return HttpResponseRedirect("/login/")

<!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
    
    {% if not username %}
    <form method="post" action="/login/">
        用户名：<input type="text" name="username" value=""><br/>
        <input type="submit" value="登录">
    </form>
    {% else %}
    你已经登录了！{
      { username }}<br/>
    <form method="post" action="/logout/">
        <input type="submit" value="注销">
    </form>
    {% endif %}
    
    </body>
    </html>

"""newtest URL Configuration
    
    The `urlpatterns` list routes URLs to views. For more information please see:
        https://docs.djangoproject.com/en/1.8/topics/http/urls/
    Examples:
    Function views
        1. Add an import:  from my_app import views
        2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
    Class-based views
        1. Add an import:  from other_app.views import Home
        2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
    Including another URLconf
        1. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
    """
    from django.conf.urls import include, url
    from django.contrib import admin
    
    urlpatterns = [
        url(r'^admin/', include(admin.site.urls)),
        url(r'^$', 'helloworld.index'),
        url(r'^add/', 'add.index'),
        url(r'^address/$', 'list.index'),
        url(r'^login/$', 'login.login'),
        url(r'^logout/$', 'login.logout'),
    ]