我拷贝这里面的代码：https://github.com/eventmachine/evma_httpserver

然后在 post_init 里面打了一个 puts：

require 'eventmachine'
require 'evma_httpserver'

class MyHttpServer < EM::Connection
  include EM::HttpServer

  def post_init
    super
    no_environment_strings
    puts "post init"
  end

  def process_http_request
    response = EM::DelegatedHttpResponse.new(self)
    response.status = 200
    response.content_type 'text/html'
    response.content = '<center><h1>Hi there</h1></center>'
    response.send_response
  end
end

EM.run{
  EM.start_server '0.0.0.0', 8080, MyHttpServer
}

跑起来后，终端没有任何反应，post_init 没有被调用到，不知道大家是不是也是这样？