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django建立管理系统之二----登录页

1.login.html内容:

<form action="/login.html" method="post">
    用户名:<input type="text" name="user"><br>
    密&nbsp;&nbsp;&nbsp;&nbsp;码:<input type="password" name="pwd"> {{ msg }}<br>
    <input type="submit" value="登录">
</form>
2.使用views 生成测试数据:
from django.shortcuts import render,redirect
from app01 import models

# Create your views here.

def Login(request):
    # models.Administrator.objects.create(username='jack',password="jack")
    message = ""
    v = request.session
    from django.contrib.sessions.backends.db import SessionStore
    if request.method == "POST":
        user = request.POST.get('user')
        pwd = request.POST.get('pwd')
        c = models.Administrator.objects.filter(username=user, password=pwd).count()
        print("c:",c)
        if c:
            request.session['is_login'] = True
            request.session['username'] = user
            rep = redirect('/index.html')
            return rep
        else:
            message = "用户名或密码错误"
    obj = render(request, 'login.html', {'msg': message})
    return obj

def auth(func):
    def inner(request, *args, **kwargs):
        is_login = request.session.get('is_login')
        if is_login:
            return func(request, *args, **kwargs)
        else:
            return redirect('/login.html')
    return inner

@auth
def index(request):
    current_user = request.session.get('username')
    return render(request, 'index.html', {'username': current_user})


3.index.html:
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1> hello {{ username }}</h1>
</body>
</html>
4. urls.py
from django.contrib import admin
from django.urls import path,re_path
from app01 import views

urlpatterns = [
    path('admin/', admin.site.urls),
    re_path('login.html', views.Login),
    re_path('index.html', views.index),
]
通过session 和装饰器实现了 登录验证。







		

			posted on 
2018-03-26 13:24 
走在炽热的沙漠 
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