web框架的本质是socket
浏览器发socket请求
服务端回复请求，返回字符串
django的socket为别人的socket，整合起来才能用
别人的socket包括
server_names = {
‘cgi’: CGIServer,
‘flup’: FlupFCGIServer,
‘wsgiref’: WSGIRefServer, django默认，性能低，测试用，没有并发
‘waitress’: WaitressServer,
‘cherrypy’: CherryPyServer,
‘paste’: PasteServer,
‘fapws3’: FapwsServer,
‘tornado’: TornadoServer,
‘gae’: AppEngineServer,
‘twisted’: TwistedServer,
‘diesel’: DieselServer,
‘meinheld’: MeinheldServer,
‘gunicorn’: GunicornServer,
‘eventlet’: EventletServer,
‘gevent’: GeventServer,
‘geventSocketIO’:GeventSocketIOServer,
‘rocket’: RocketServer,
‘bjoern’ : BjoernServer,
‘auto’: AutoServer,
}
wsgi规范，web服务网关接口，每个web框架都要遵循这个协议
参考资料
所以djang的生命周期为wsgi+django