前面说了，用户注册，今天我们就来说说用户登录吧。今天说的是使用Django的session功能，而不是它的auth模块，后期，如果有机会的话，我再写点auth认证登录。
其实重点就是request.session功能，默认Django就将其session功能打开了，我们仅仅需要的是配置下数据库。
website/settings.py
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'tc',
'USER': 'root',
'PASSWORD': 'password',
'HOST': '127.0.0.1',
'PORT':'' ,
}
}
登录表单(用户登录认证的活，我放在表单里喽):
mysite/forms.py
class LoginForm(forms.Form):
username = forms.CharField(error_messages={'required':'请输入用户名'})
password = forms.CharField(widget=forms.PasswordInput,error_messages={'required':'请输入密码'})
def clean(self):
cleaned_data=super(LoginForm,self).clean()
username = cleaned_data.get('username')
password = cleaned_data.get('password')
if username and password:
try:
member=Register.objects.get(username__exact=username)
except Register.DoesNotExist:
self._errors['username'] = self.error_class([u"用户不存在"])
return
if member.password != password:
self._errors['password'] = self.error_class([u"密码不一致"])
return cleaned_data
登录与登出
mysite/views.py
def login(request):
login_user = request.session.get('username',"")
if login_user:
return render(request,"login.html",{'username':login_user})
if request.method == 'POST':
loginform = LoginForm(request.POST,error_class=DivErrorList)
if loginform.is_valid():
request.session['username']=loginform.cleaned_data['username']
return render(request,"login.html",{'username':request.session['username']})
else:
loginform = LoginForm()
return render(request,"login.html",{'loginform':loginform})
def logout(request):
login_user = request.session.get('username',"")
if login_user:
del request.session['username']
else:
loginform = LoginForm()
return render(request,"login.html",{'loginform':loginform})
return HttpResponse("登出成功!<a href='/login/'>登录</a>")
模板:
mysite/templates/login.html
{% extends "base.html" %}
{% block title %}
用户登录
{% endblock %}
{% block content %}
{% if not username %}
<form action="/login/" method="POST">
{% csrf_token %}
用户登录</br>
用户名:` loginform`.`username `{{ loginform.username.errors|safe}}</br>
密码:` loginform`.`password `{{ loginform.password.errors|safe}}</br>
<input type="submit" value="登录"/>
</form>
{% else %}
欢迎管理员:`username`,<a href="/logout/">登出</a>
{% endif %}
{% endblock %}
导向
website/urls.py
url(r'^login/','mysite.views.login'),
url(r'^logout/','mysite.views.logout'),
url(r'^success/(?P<name>\w+)/$','mysite.views.success'),
有了这些，我们便可以实现用户登录了，并且做了相应的检验,就这么简单...
本文转自hahazhu0634 51CTO博客，原文链接：http://blog.51cto.com/5ydycm/1657650，如需转载请自行联系原作者
