text: import redis
  from flask import Flask
  from flask_migrate import Migrate, MigrateCommand
  from flask_script import Manager
  from flask_session import Session
  from flask_sqlalchemy import SQLAlchemy
  from flask_wtf import CSRFProtect
  
  app = Flask(__name__)
  
  
  class Config(object):
      """工程配置信息"""
      DEBUG = True
  
      # 数据库的配置信息
      SQLALCHEMY_DATABASE_URI = "mysql://root:mysql@127.0.0.1:3306/iot_news"
      SQLALCHEMY_TRACK_MODIFICATIONS = False
  
      # redis配置
      REDIS_HOST = "127.0.0.1"
      REDIS_PORT = 6379
  
      # flask_session的配置信息
      SESSION_TYPE = "redis" # 指定 session 保存到 redis 中
      SESSION_USE_SIGNER = True # 让 cookie 中的 session_id 被加密签名处理
      SESSION_REDIS = redis.StrictRedis(host=REDIS_HOST, port=REDIS_PORT) # 使用 redis 的实例
      PERMANENT_SESSION_LIFETIME = 86400 # session 的有效期，单位是秒
  
  
  app.config.from_object(Config)
  db = SQLAlchemy(app)
  redis_store = redis.StrictRedis(host=Config.REDIS_HOST, port=Config.REDIS_PORT)
  CSRFProtect(app)
  Session(app)
  
  
  manager = Manager(app)
  Migrate(app, db)
  manager.add_command('db', MigrateCommand)
  
  
  
  
  @app.route('/index')
  def index():
      return 'index'
  
  if __name__ == '__main__':
      app.run()