flask---多app应用/flask-script

1. 多app应用（了解）

### 多个app实例(启用)
from werkzeug.wsgi import DispatcherMiddleware
from werkzeug.serving import run_simple
from flask import Flask, current_app
app1 = Flask('app01')
app2 = Flask('app02')

@app1.route('/index')
def index():
    return "app01"

@app2.route('/index2')
def index2():
    return "app2"

# http://www.oldboyedu.com/index
# http://www.oldboyedu.com/sec/index2
dm = DispatcherMiddleware(app1, {
    '/sec': app2,
})

if __name__ == "__main__":
    run_simple('localhost', 5000, dm)
    # 请求来了，会执行dm()--->__call__

2. flask-script（制定命令）

1 模拟出类似django的启动方式：python manage.py runserver
2 pip install flask-script
3 把excel的数据导入数据库，定制个命令，去执行(openpyxl)
	python manage.py insertdb -f xxx.excl -t aa
    
4 使用
	-方式一：python manage.py runserver
    from flask import Flask
    from flask_script import Manager
    app = Flask(__name__)
    manager=Manager(app)
    if __name__ == '__main__':
        manager.run()
    -方式二：自定制命令
        @manager.command
        def custom(arg):
            print(arg)
        @manager.option('-n', '--name', dest='name')
        @manager.option('-u', '--url', dest='url')
        def cmd(name, url):
            print(name, url)
5 创建超级用户
6 现在有一万条excel用户，批量导入到数据库中
	-navicate直接支持
    -脚本
    -flask-script