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settings.py

"""
Django Settings for guest project.

Generated by ' Django-admin startproject ' using Django 2.0.7.

For more information on the this file, see
https://docs.djangoproject.com/en/2.0/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/2.0/ref/settings/
"""

Import OS

# Build paths inside the project like This:os.path.join (Base_dir, ...)
Base_dir = Os.path.dirname (Os.path.dirname (Os.path.abspath (__file__)))


# Quick-start Development settings-unsuitable for production
# See https://docs.djangoproject.com/en/2.0/howto/deployment/checklist/

# SECURITY Warning:keep The secret key used in production secret!
Secret_key = ' bl%t7) d*tz=_ww) i^[email protected]*9azb$f%t0h2+ (E!GZMTNM-+2J '

# SECURITY Warning:don ' t run with debug turned on production!
DEBUG = True

Allowed_hosts = []


# application Definition

Installed_apps = [
' Django.contrib.admin ',
' Django.contrib.auth ',
' Django.contrib.contenttypes ',
' Django.contrib.sessions ',
' Django.contrib.messages ',
' Django.contrib.staticfiles ',
' Sign ', #添加sign应用
]

Middleware = [
' Django.middleware.security.SecurityMiddleware ',
' Django.contrib.sessions.middleware.SessionMiddleware ',
' Django.middleware.common.CommonMiddleware ',
# ' Django.middleware.csrf.CsrfViewMiddleware ',
' Django.contrib.auth.middleware.AuthenticationMiddleware ',
' Django.contrib.messages.middleware.MessageMiddleware ',
' Django.middleware.clickjacking.XFrameOptionsMiddleware ',
]

root_urlconf = ' Guest.urls '

TEMPLATES = [
{
' Backend ': ' Django.template.backends.django.DjangoTemplates ',
' DIRS ': [],
' App_dirs ': True,
' OPTIONS ': {
' Context_processors ': [
' Django.template.context_processors.debug ',
' Django.template.context_processors.request ',
' Django.contrib.auth.context_processors.auth ',
' Django.contrib.messages.context_processors.messages ',
],
},
},
]

wsgi_application = ' guest.wsgi.application '


# Database
# https://docs.djangoproject.com/en/2.0/ref/settings/#databases

DATABASES = {
' Default ': {
' ENGINE ': ' Django.db.backends.sqlite3 ',
' NAME ': Os.path.join (Base_dir, ' db.sqlite3 '),
}
}


# Password Validation
# https://docs.djangoproject.com/en/2.0/ref/settings/#auth-password-validators

Auth_password_validators = [
{
' NAME ': ' Django.contrib.auth.password_validation. Userattributesimilarityvalidator ',
},
{
' NAME ': ' Django.contrib.auth.password_validation. Minimumlengthvalidator ',
},
{
' NAME ': ' Django.contrib.auth.password_validation.CommonPasswordValidator ',
},
{
' NAME ': ' Django.contrib.auth.password_validation. Numericpasswordvalidator ',
},
]


# internationalization
# https://docs.djangoproject.com/en/2.0/topics/i18n/

Language_code = ' en-US '

Time_zone = ' UTC '

use_i18n = True

use_l10n = True

Use_tz = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.0/howto/static-files/

Static_url = '/static/'




urls.py

"" "Guest URL Configuration

The ' urlpatterns ' list routes URLs to views. For more information. See:
https://docs.djangoproject.com/en/2.0/topics/http/urls/
Examples:
Function views
1. Add an import:from My_app import views
2. Add a URL to Urlpatterns:path (", Views.home, Name= ' home ')
class-based views
1. Add an import:from other_app.views import Home
2. Add a URL to Urlpatterns:path ("', Home.as_view (), name= ' Home ')
including another URLconf
1. Import the Include () Function:from django.urls Import include, path
2. Add a URL to Urlpatterns:path (' blog/', include (' Blog.urls '))
"""
From Django.contrib Import admin
From Django.conf.urls import URL
From Django.urls Import path
From sign import views #导入sign应用views文件
Urlpatterns = [
#path (' admin/', admin.site.urls),
#path (' admin/$ ', views.index), #添加index/path configuration
#url (R ' ^index/$ ', Views.index),
URL (r ' ^admin/', admin.site.urls), #40页
URL (r ' ^index/$ ', Views.index),
URL (r ' ^login_action/$ ', views.login_action),
]

views.py

 from django.shortcuts import render 
 from django.shortcuts import HttpResponse 
 from django.http Import HttpResponse 
 # Create your views here. 
 # # 
 #def Index (Request): 
 #return httpresponse ("Hello django!")  
 # # Return render (Request, "index.html") 
 # # 
 
 #登录动作 
 def login_action (request): 
 If Request.method = = ' Post ': 
 Username = = Request. Post.get (' username ', ') 
 Password = = Request. Post.get (' password ', ') 
 if username = = ' admin ' and password = = ' admin123 ': 
 Return HttpResponse (' L Ogin success! ') 
 Else: 
 Return render (Request, ' index.html ', {' Error ': ' Username or password error! '}) 
 
 
 
 index.html  
 
 

<! DOCTYPE html>
    <meta charset= "UTF-8" >
    <title>django page</title>
<body>
        <form method= "POST" action= "/login_action/" >
        <input name= "username" type= "text" placeholder= "username" ><br>
        <input name= "password" type= "password" placeholder= "password" ><br>
        {{Error}}<br>
        <button id= "BTN" type= "submit" > Login </button>
        {% Csrf_token%}
    </form>

</body>







Recently in contact with Django, wrote a small example web page can't open, ask God guidance