Django学习笔记-默认的用户认证系统（auth）

from django.contrib.auth.models import User
from django.shortcuts import render, redirect
from django.contrib import auth, messages
 
def register(request):
    if request.method == 'POST':
        username = request.POST['username']
        password = request.POST['password']
        user = User.objects.create_user(username=username, password=password)
        return redirect('index')
    return render(request, 'register.html')
 
def login(request):
    if request.method == 'POST':
        username = request.POST['username']
        password = request.POST['password']
        user = auth.authenticate(request, username=username, password=password)
        if user is not None:
            auth.login(request, user)
            return redirect('index')
        else:
            messages.error(request, 'Credentials not valid!')
    return render(request, 'login.html')
 
def logout(request):
    auth.logout(request)
    return redirect('index')

这段代码提供了注册、登录和登出的视图函数示例，使用了Django的默认用户认证系统。注册函数创建了一个新用户，登录函数尝试验证用户凭据，如果成功则登录用户，登出函数注销当前用户。