继续完善用户登录,基于类的
C:\Users\hlg\PycharmProjects\MxOnline\apps\users\views.py
# _*_ encoding:utf-8 _*_ from django.shortcuts import render from django.contrib.auth import authenticate, login from django.contrib.auth.backends import ModelBackend # from django.db.models import Q # 完成并集 from django.views.generic.base import View # # Create your views here. from .models import UserProfile # class CustomBackend(ModelBackend): def authenticate(self, username=None, password=None, **kwargs): # 完成自己的逻辑 try: # user = UserProfile.objects.get(username=username) user = UserProfile.objects.get(Q(username=username)|Q(email=username)) if user.check_password(password): return user except Exception as e: return None # 基于类 class LoginView(View): # django的View会自动调用get ,post def get(self, request): return render(request, "login.html", {}) def post(self, request): user_name = request.POST.get("username", "") pass_word = request.POST.get("password", "") user = authenticate(username=user_name, password=pass_word) if user is not None: login(request, user) # 这个是系统提供的 login return render(request, "index.html") # 登录成功,跳转到首页 else: return render(request, "login.html", {"msg": "用户名或密码错误"}) # 登录失败,跳转到登录页面 # 这是基于函数的 # def user_login(request): # # if request.method == "POST": # user_name = request.POST.get("username","") # pass_word = request.POST.get("password","") # # user = authenticate(username=user_name, password=pass_word) # # if user is not None: # login(request, user) # 这个是系统提供的 login # return render(request, "index.html") # 登录成功,跳转到首页 # else: # return render(request, "login.html", {"msg":"用户名或密码错误"}) # 登录失败,跳转到登录页面 # elif request.method == "GET": # return render(request, "login.html", {})
C:\Users\hlg\PycharmProjects\MxOnline\MxOnline\urls.py
# _*_ encoding:utf-8 _*_ """MxOnline URL Configuration The `urlpatterns` list routes URLs to views. For more information please see: https://docs.djangoproject.com/en/1.9/topics/http/urls/ Examples: Function views 1. Add an import: from my_app import views 2. Add a URL to urlpatterns: url(r'^$', views.home, name='home') Class-based views 1. Add an import: from other_app.views import Home 2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home') Including another URLconf 1. Add an import: from blog import urls as blog_urls 2. Import the include() function: from django.conf.urls import url, include 3. Add a URL to urlpatterns: url(r'^blog/', include(blog_urls)) """ from django.conf.urls import url from django.contrib import admin from django.views.generic import TemplateView # 专门处理静态文件 import xadmin # from users.views import user_login from users.views import LoginView urlpatterns = [ url(r'^xadmin/', xadmin.site.urls), url('^$', TemplateView.as_view(template_name="index.html"), name="index"), # url('^login/$', user_login, name="login") url('^login/$', LoginView.as_view(), name="login") # as_view()方法是把类转换成方法使用 ]
重启,退出系统,重新登录成功
下面介绍另外一个知识点:form
在users下面新建一个froms文件:
from django import forms class LoginForm(forms.Form): username = forms.CharField(required=True, min_length=3) # required=True 表示必填字段 password = forms.CharField(required=True)C:\Users\hlg\PycharmProjects\MxOnline\apps\users\views.py