Python高级编程-DJango2

在Python中使用Django框架进行高级编程时，我们可以创建一个简单的用户注册和登录功能。以下是一个简化的示例：

首先，确保你已经安装了Django。如果没有安装，可以使用以下命令安装：

pip install django

1. 创建一个新的Django项目：

django-admin startproject myproject

2. 进入项目目录并创建一个新的应用：

cd myproject
python manage.py startapp accounts

3. 编辑 accounts/views.py 来添加登录和注册视图：

from django.contrib.auth import login, authenticate, logout
from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
from django.shortcuts import render, redirect
from django.urls import reverse_lazy
from django.views import View
from django.forms import Form
from django.forms import fields
 
class LoginView(View):
    form_class = AuthenticationForm
    template_name = 'login.html'
 
    def get(self, request):
        form = self.form_class()
        return render(request, self.template_name, {'form': form})
 
    def post(self, request):
        form = self.form_class(data=request.POST)
        if form.is_valid():
            user = form.get_user()
            login(request, user)
            return redirect('home')
        return render(request, self.template_name, {'form': form})
 
class RegisterView(View):
    form_class = UserCreationForm
    template_name = 'register.html'
 
    def get(self, request):
        form = self.form_class()
        return render(request, self.template_name, {'form': form})
 
    def post(self, request):
        form = self.form_class(data=request.POST)
        if form.is_valid():
            user = form.save()
            authenticate(request, username=user.username, password=request.POST['password1'])
            return redirect('home')
        return render(request, self.template_name, {'form': form})
 
def logout_view(request):
    logout(request)
    return redirect('home')

4. 创建模板 accounts/templates/login.html 和 accounts/templates/register.html 来显示表单：

<!-- login.html -->
<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Login</button>
</form>
 
<!-- register.html -->
<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Register</button>
</form>

5. 在 myproject/myproject/urls.py 中添加路由：

from django.urls import path
from django.contrib.auth import views as auth_views
from accounts.views import LoginView, RegisterView, logout_view
 
urlpatterns = [
    path('login/', LoginView.