2017考研成绩公布时间,郎溪房屋出租,王平顺
1.保存在用户浏览器
2.可以主动清除
3.可以被伪造
4.跨域名 cookie 不共享
创建一个项目:user_manager 和应用: app01
from django.db import models # create your models here. class classes(models.model): caption = models.charfield(max_length=32) class student(models.model): name = models.charfield(max_length=32) cls = models.foreignkey(classes, on_delete=models.cascade) class teacher(models.model): name = models.charfield(max_length=32) cls = models.foreignkey(classes, on_delete=models.cascade) class administrator(models.model): username = models.charfield(max_length=32) password = models.charfield(max_length=32)
from django.contrib import admin from django.urls import path from app01 import views urlpatterns = [ path('admin/', admin.site.urls), path('login.html', views.login), path('', views.index), ]
# login.html <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>title</title> </head> <body> <form action="login.html" method="post"> {% csrf_token %} <div> <label for="user">用户名: </label> <input id="user" type="text" name="user"> </div> <div> <label for="pwd">密码: </label> <input id="pwd" type="password" name="pwd"> </div> <div> <label></label> <input type="submit" value="登录"> <span style="color: red;">{{ msg }}</span> </div> </form> </body> </html> # <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>title</title> </head> <body> <h1> hello {{ username }} </h1> </body> </html>
from django.shortcuts import render, redirect # create your views here. from app01 import models def login(req): # models.administrator.objects.create( # username='klvchen', # password='klvchen' # ) message = "" if req.method == "post": user = req.post.get('user') pwd = req.post.get('pwd') c = models.administrator.objects.filter(username=user, password=pwd).count() if c: rep = redirect('') rep.set_cookie('username', user) return rep else: message = "用户名或密码错误" return render(req, 'login.html', {'msg': message}) def index(req): username = req.cookies.get('username') if username: return render(req, '', {'username': username}) else: return redirect('/login.html')
python manage.py makemigrations python manage.py migrate
python manage.py runserver 8000
输入错误的用户名或密码
输入正确的用户名和密码
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