Django登陆注销

Django Python

文件配置

app的models.py

class User(models.Model):
    username = models.CharField(max_length=30)
    password = models.CharField(max_length=100)
    def __str__(self):
        return self.username

app　的view.py

#!/usr/bin/env python3
#coding = utf-8
from django.shortcuts import render
from django.http import *
from books.models import *
from django.contrib.auth.forms import UserCreationForm
from django.template import RequestContext
from django import forms
# Create your views here.
class UserForm(forms.Form):
    username = forms.CharField()
    password = forms.CharField(widget = forms.PasswordInput)
def register(request):
    if request.method == 'POST':
        uf = UserForm(request.POST)
        if(uf.is_valid()):
            uname = uf.cleaned_data['username']
            pword = uf.cleaned_data['password']
            User.objects.create(username = uname, password = pword)
            return HttpResponseRedirect("/login/")
    else:
        uf = UserForm()
    return render(request, 'books/register.html', {'uf': uf}, context_instance=RequestContext(request))
def login(request):
    session = request.session.get('username', False)
    if(not session):
        if(request.method == 'POST'):
            uf = UserForm(request.POST)
            if(uf.is_valid()):
                uname = uf.cleaned_data['username']
                pword = uf.cleaned_data['password']
                user = User.objects.filter(username__exact = uname, password__exact = pword)
                if(user):
                    request.session['username'] = uname
                    return HttpResponse('login success')
                    #return HttpResponseRedirect('/home/')
                else:
                    return HttpResponseRedirect('/login/')
            else:
                return HttpResponseRedirect('/login/')
        else:
            uf = UserForm()
            return render(request, 'books/login.html', {'uf': uf}, context_instance=RequestContext(request))
    else:
        return HttpResponseRedirect('/home/')
def home(request):
    username = request.session.get('username', 'anybody')
    return render(request, 'books/home.html', {'username': username})
def logout(request):
    session = request.session.get('username', False)
    if session:
        del request.session['username']
        return render(request, 'books/logout.html', {'username':session})
    else:
        return HttpResponse('please login')
def show_color(request):
    if "favorite_color" in request.session:
        return HttpResponse("Your favorite color is %s" % 
                request.session["favorite_color"])
    else:
        return HttpResponse("You don't have a favorite color")
def set_color(request):
    if "favorite_color" in request.GET:
        response = HttpResponse("Your favorite color is now %s"
               % request.GET["favorite_color"])
        request.session["favorite_color"] = request.GET["favorite_color"]
        return response
    else:
        return HttpResponse("You didn't give a favorite color")

settings.py添加响应的app，urls.py 添加相应的url

settings.py中包含如下

INSTALLED_APPS = (
    'bootstrap_admin', # 使bootstrap_admin
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'gouwuche',
    'books',
    'polls',
)
from django.conf import global_settings
TEMPLATE_CONTEXT_PROCESSORS = global_settings.TEMPLATE_CONTEXT_PROCESSORS + (
    'django.core.context_processors.request',
)
BOOTSTRAP_ADMIN_SIDEBAR_MENU = True
MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'django.middleware.security.SecurityMiddleware',
)

html模板

home.html

<body>
    <h3>Welcome to this site !</h3>
    <p>hello  <span>{{ username }}</span> </p>
    {% if username != 'anybody' %}
    <a href="/logout/">logout</a>
    {% else %}
    <a href="/login/">login</a>
    {% endif %}
</body>

login.html

<body>
    <form method = 'post' enctype='multipart/form-data'>
        {% csrf_token %}
        {{ uf.as_p }}
        <input type='submit', value='login'/>
    </form>
</body>

logout.html

<body>
    <h3> Good Bye </h3>
    {% if username %}
    <a href="/login/">login</a>
    {% endif %}
</body>

register.html

<body>
  <form method="post" enctype='multipart/form-data'> {% csrf_token %}
      {{ uf.as_p }}
      <input type="submit" value="register"/>
  </form>
</body>