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python django -- 简单注册/登陆/session

2018-02-19 17:12 441 查看

注册登陆 session

user.html

未使用{{useform}}而使用{{ userform.password }}形式便于后期css样式

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="." method="POST">
{% csrf_token %}
<div>username: <input type="text" name="username"> </div>
<div>password: {{ userform.password }}</div>
<div><input type="submit" value="注册" name="reg"> <input type="submit" value="登陆" name="login"> </div>

</form>
</body>
</html>

form.py

#/usr/bin/env python3

from django import  forms

class UserForm(forms.Form):
username=forms.CharField()
password=forms.CharField()

models.py

from django.db import  models
class User(models.Model):
username=models.CharField(max_length=30)
password=models.CharField(max_length=30)

def __str__(self):
return self.username

viesw.py

from django.shortcuts import render
from django.views.decorators.cache import  cache_page
from .models import  User
# Create your views here.
from django.http import  HttpResponse
from django.http import  HttpResponseRedirect
from djapp.forms import UserForm

def user(request):
if request.method == 'POST':
userform=UserForm(request.POST)
if userform.is_valid():
if request.POST.get('reg'):
username=userform.cleaned_data['username']
password=userform.cleaned_data['password']
User.objects.create(username=username,password=password)
# user=User()
# user.username=username
# user.password=password
# user.save()

return  HttpResponse("login 注册%s"%username)

else:
if request.session.get('user_id') == 3:
return  HttpResponse("session 登陆")

else:
try:
user=User.objects.get(username=request.POST.get('username',None))
except Exception as e:
print(e)
return HttpResponse("找不到用户")
if user.password == request.POST.get('password'):
request.session['user_id']=user.id
return HttpResponse("登陆成功")
else:
return  HttpResponse("登陆失败")

else:
userform=UserForm()
return render(request,'djapp/user.html',{'userform':userform})