三余无梦

冬者岁之余，夜者日之余，阴雨者时之余也

Tornado Code Reading

服务器建立

HTTPServer

应用

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application = web.Application([
(r"/", MainPageHandler),  
])
http_server = httpserver.HTTPServer(application)
http_server.listen(8080)
ioloop.IOLoop.instance().start()

对照应用例子理解源码

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def __init__(self, request_callback, no_keep_alive=False, io_loop=None,
                 xheaders=False, ssl_options=None, protocol=None, **kwargs):
        self.request_callback = request_callback
        self.no_keep_alive = no_keep_alive
        self.xheaders = xheaders
        self.protocol = protocol
        TCPServer.__init__(self, io_loop=io_loop, ssl_options=ssl_options,
                           **kwargs) #HTTPServer 继承自 TCPServer, 初始化TCPServer

参数

  • request_callback: 必须产生一个http回复, 例子中 application 即是回复
  • xheaders: True(支持通过x-real-ip或x-forwarded-for获取ip) False(当torando之前有反向代理或者负载均衡self.request.remote_ip只能获得127.0.0.1)
  • ssl_options: ssl传输数据

ssl_options 使用例子

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HTTPServer(applicaton, ssl_options={
   "certfile": os.path.join(data_dir, "mydomain.crt"),
   "keyfile": os.path.join(data_dir, "mydomain.key"),
  })

下面应该说下 TCPServer 主体内容在 TCPServer,

TCPServer