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django登錄與注銷學(xué)習(xí)筆記

發(fā)布時(shí)間：2020-07-08 19:11:29 來源：網(wǎng)絡(luò) 閱讀：399 作者：知止內(nèi)明 欄目：編程語言

創(chuàng)建工程

django-admin startproject 工程名字

創(chuàng)建項(xiàng)目

python manage.py startapp 應(yīng)用名
django登錄與注銷學(xué)習(xí)筆記

注冊django后臺(tái)管理代碼

#后臺(tái)認(rèn)證數(shù)據(jù)表遷移
D:\pythonspacen\djano\guest>python manage.py migrate
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, sessions
Running migrations:
  Applying contenttypes.0001_initial... OK
  Applying auth.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying admin.0002_logentry_remove_auto_add... OK
  Applying contenttypes.0002_remove_content_type_name... OK
  Applying auth.0002_alter_permission_name_max_length... OK
  Applying auth.0003_alter_user_email_max_length... OK
  Applying auth.0004_alter_user_username_opts... OK
  Applying auth.0005_alter_user_last_login_null... OK
  Applying auth.0006_require_contenttypes_0002... OK
  Applying auth.0007_alter_validators_add_error_messages... OK
  Applying auth.0008_alter_user_username_max_length... OK
  Applying auth.0009_alter_user_last_name_max_length... OK
  Applying sessions.0001_initial... OK

#創(chuàng)建用戶
D:\pythonspacen\djano\guest>manage.py createsuperuser
Username (leave blank to use 'admin'):
Email address: admin@admin.com
Password:
Password (again):
The password is too similar to the email address.
Password:
Password (again):
Superuser created successfully.

編寫配置路由代碼

from django.contrib import admin
from django.urls import path

from sign import views

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', views.index),
    path('index/', views.index),
    path('accounts/login/', views.index),  # 認(rèn)證系統(tǒng)
    path('Login/', views.Login),
    path('logout/', views.logout),  # 退出系統(tǒng)
    path('event_manage/', views.event_manage),
]

編寫視圖代碼

from django.contrib.messages.storage import session
from django.shortcuts import render
from django.http import HttpResponse, HttpResponseRedirect
from django.contrib import auth
from django.contrib.auth.decorators import login_required

def index(request):
    return render(request, "index.html")

# 使用django登錄
def Login(request):
    if request.method == 'POST':
        login_username = request.POST.get('username', '')
        login_password = request.POST.get('password', '')
        # 使用框架系統(tǒng)的用戶系統(tǒng)
        user = auth.authenticate(username=login_username, password=login_password)
        if user is not None:
            auth.login(request, user)
            request.session['user'] = login_username
            response = HttpResponseRedirect('/event_manage/')
            return response
        elif login_password == "" and login_username == "":
            return render(request, "index.html", {'error': 'username or password  null'})
        else:
            return render(request, "index.html", {'error': 'username or password error!'})
    else:
        return render(request, "index.html")

# 列表
@login_required
def event_manage(request):
    # username = request.COOKIES.get("user", "")
    username = request.session.get('user', '')
    conten = {'infon': "login success!", 'user': username}
    return render(request, "event_manage.html", conten)

# 退出
@login_required
def logout(request):
    # 使用框架系統(tǒng)退出
    auth.logout(request)
    # 調(diào)轉(zhuǎn)到頁面
    response = HttpResponseRedirect('/index/')
    return response

啟動(dòng)項(xiàng)目

django登錄與注銷學(xué)習(xí)筆記

使用剛才注冊的用戶名與密碼登錄
django登錄與注銷學(xué)習(xí)筆記
django登錄與注銷學(xué)習(xí)筆記

登錄成功

django登錄與注銷學(xué)習(xí)筆記

inde.html

<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>登錄頁面</title>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" rel="stylesheet">
    <style type="text/css">
        #red {
            color: red;
        }
    </style>
</head>
<body>

<div class="container">
    <form class="form-horizontal" action="/Login/" method="post">
        <div class="form-group">
            <label for="inputEmail3" class="col-sm-2 control-label">用戶名: </label>
            <div class="col-sm-10">
                <input type="text" name="username" class="form-control-static" id="inputEmail3" placeholder="username">
            </div>
        </div>
        <div class="form-group">
            <label for="inputPassword3" class="col-sm-2 control-label">密碼：</label>
            <div class="col-sm-10">
                <input type="password" name="password" class="form-control-static" id="inputPassword3"
                       placeholder="Password">
            </div>
        </div>
        <p id="red" >{{ error }}</p>
        <div class="form-group">
            <div class="col-sm-offset-2 col-sm-10">
                <div class="checkbox">
                    <label>
                        <input type="checkbox"> 記住
                    </label>
                </div>
            </div>
        </div>
        <div class="form-group">
            <div class="col-sm-offset-2 col-sm-10">
                <button type="submit" class="btn btn-primary">登錄</button>
            </div>
        </div>
        {% csrf_token %}
    </form>

</div>
<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依賴 jQuery，所以必須放在前邊) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
<!-- 加載 Bootstrap 的所有 JavaScript 插件。你也可以根據(jù)需要只加載單個(gè)插件。 -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js"></script>
</body>
</html>

頁面跳轉(zhuǎn)

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>發(fā)布會(huì)列表</title>
</head>
<body>
<a href="/logout/">退出</a>
<a href="/event_manage/"> Welcome,{{ user }}</a>
<h3>{{ infon }}</h3>

</body>
</html>
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