web框架的功能:
1.socket收发消息 (wsgi)
2.根据不同的地址返回不同的内容
3.返回动态页面(字符串的替换)
web框架的分类:
1. gjango + wsgiref
2. flask janja2
3. tornado .
Django官网下载页面:https://www.djangoproject.com/download/
安装最新LTS版:
pip3 install django==1.11.15
创建django项目:
django-admin startproject mysite #创建一个名为mysite 的项目 或用pycharm创建 (命令创建的没有页面的路径)
目录介绍
mysite/ ├── manage.py # 管理文件 └── mysite # 项目目录 ├── __init__.py ├── settings.py # 配置 ├── urls.py # 路由 --> URL和函数的对应关系 └── wsgi.py # runserver命令就使用wsgiref模块做简单的web server
启动项目
python manage.py runserver 127.0.0.1:8000 python manage.py runserver 80 #指定80端口启动
setting.py 配置文件
""" Django settings for qqq project. Generated by ‘django-admin startproject‘ using Django 1.11.15. For more information on this file, see https://docs.djangoproject.com/en/1.11/topics/settings/ For the full list of settings and their values, see https://docs.djangoproject.com/en/1.11/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__))) #获得项目根目录的路径 # Quick-start development settings - unsuitable for production # See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/ # SECURITY WARNING: keep the secret key used in production secret! SECRET_KEY = ‘t8$e3*a^7@)zgh@1et(om%b3xtmj8!9$+^tma=m_(zy#qb7w0%‘ # SECURITY WARNING: don‘t run with debug turned on in production! DEBUG = True #调试功能 开发时为True 上线时改为False ALLOWED_HOSTS = [‘*‘] #允许访问的主机 ‘*‘ 表示所有 # Application definition INSTALLED_APPS = [ #配置app ‘django.contrib.admin‘, ‘django.contrib.auth‘, ‘django.contrib.contenttypes‘, ‘django.contrib.sessions‘, ‘django.contrib.messages‘, ‘django.contrib.staticfiles‘,
‘app1.apps.App01config‘ #将创建的app加入进来 ] MIDDLEWARE = [ #配置中间件 ‘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 = ‘qqq.urls‘ #url路由的位置 TEMPLATES = [ #模板 { ‘BACKEND‘: ‘django.template.backends.django.DjangoTemplates‘, ‘DIRS‘: [os.path.join(BASE_DIR, ‘templates‘)] #模板的位置) , ‘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 = ‘qqq.wsgi.application‘ # Database # https://docs.djangoproject.com/en/1.11/ref/settings/#databases DATABASES = { #数据库的配置 ‘default‘: { ‘ENGINE‘: ‘django.db.backends.sqlite3‘, ‘NAME‘: os.path.join(BASE_DIR, ‘db.sqlite3‘), } } # Password validation # https://docs.djangoproject.com/en/1.11/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/1.11/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/1.11/howto/static-files/ STATIC_URL = ‘/static/‘ #静态文件的别名,找静态文件会在这个目录下的各个子目录中找
STATICFILES_DIRS = [ #静态文件的位置
os.path.join(BASE_DIR,‘static‘) ]
创建app
python3 manage.py startapp app1 #创建名为app1的app
原文:https://www.cnblogs.com/ywrj/p/10404067.html