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本文实例讲述了django 框架实现的用户注册、登录、退出功能。分享给大家供大家参考，具体如下：
1 用户注册：
from django.contrib import auth
from django.contrib.auth.models import User
from django.views.decorators.csrf import csrf_exempt
from django.http import HttpResponseRedirect
# 用户注册
@csrf_exempt
def register(request):
errors = []
account = None
password = None
password2 = None
email = None
CompareFlag = False
if request.method == 'POST':
if not request.POST.get('account'):
errors.append('用户名不能为空')
else:
account = request.POST.get('account')
if not request.POST.get('password'):
errors.append('密码不能为空')
else:
password = request.POST.get('password')
if not request.POST.get('password2'):
errors.append('确认密码不能为空')
else:
password2 = request.POST.get('password2')
if not request.POST.get('email'):
errors.append('邮箱不能为空')
else:
email = request.POST.get('email')
if password is not None:
if password == password2:
CompareFlag = True
else:
errors.append('两次输入密码不一致')
if account is not None and password is not None and password2 is not None and email is not None and CompareFlag :
user = User.objects.create_user(account,email,password)
user.save()
userlogin = auth.authenticate(username = account,password = password)
auth.login(request,userlogin)
return HttpResponseRedirect('/blog')
return render(request,'blog/register.html', {'errors': errors})
2 用户登录：
@csrf_exempt
def my_login(request):
errors =[]
account = None
password = None
if request.method == "POST":
if not request.POST.get('account'):
errors.append('用户名不能为空')
else:
account = request.POST.get('account')
if not request.POST.get('password'):
errors = request.POST.get('密码不能为空')
else:
password = request.POST.get('password')
if account is not None and password is not None:
user = auth.authenticate(username=account,password=password)
if user is not None:
if user.is_active:
auth.login(request,user)
return HttpResponseRedirect('/blog')
else:
errors.append('用户名错误')
else:
errors.append('用户名或密码错误')
return render(request,'blog/login.html', {'errors': errors})
3 用户退出：
def my_logout(request):
auth.logout(request)
return HttpResponseRedirect('/blog')
URL：
urlpatterns = [ url(r'^$', views.index, name='index'), url(r'^p/(?P<article_id>[0-9]+)/$', views.detail,name='detail'), url(r'^register/$',views.register, name='register'), url(r'^login/$',views.my_login, name='my_login'), url(r'^logout/$',views.my_logout, name='my_logout'), ]
注册 HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
{% if errors %}
<li>
{% for error in errors %}
<p >
{{error}}
</p>
{% endfor %}
</li>
{% endif %}
<table>
<form action="" method="post">{% csrf_token %}
<tr>
<td>
<label >用户名:</label>
</td>
<td>
<input type = 'text' placeholder="输入用户名" name = 'account'>
</td>
</tr>
<tr>
<td>
<label >密码:</label>
</td>
<td>
<input type = 'password' placeholder="输入密码" name = 'password'>
</td>
</tr>
<tr>
<td>
<label >确认密码:</label>
</td>
<td>
<input type = 'password' placeholder="再次输入密码" name ='password2'>
</td>
</tr>
<tr>
<td>
<label>邮箱:</label>
</td>
<td>
<input type="email" placeholder="输入邮箱" name = 'email'>
</td>
</tr>
<tr>
<td>
<input type = 'submit' placeholder="Login" value="登录">
</td>
</tr>
</form>
</table>
</body>
</html>
