使用Twisted实现一个简单Web服务器

作者：梅劲松
版权：本文档为MIT授权
运行环境:Python 2.3+Twisted的py-23安装版本

自己实现Web服务器的优点就不用说太多了，主要是能控制具体的实现。也能按照自己的习惯实现互动方式。
而Twisted在tcp以下是C写的，ip和udp部分应该是C和Python的混合产物，而http smtp等则是Python的，自己能很好的扩充。
下面来看个具体的例子：
首先你需要编辑一个html为结尾的文件名放到你的htm目录下。
然后在htm的上一级目录建立一个文件，文件名为web.py，内容如下：

PORT = 80#这个是80，如果你的端口被占用了，换成其他的                                                                     

                                                            

                                                                                

from twisted.web.resource import Resource                                       

from twisted.web import server                                                   

from twisted.web import static                                                   

from twisted.internet import reactor 

                                                                                                              

                                                      

class ReStructured( Resource ):                                                                                                                                 

  def __init__( self, filename, *a ):                                         

      self.rst = open( filename ).read( )                                                                                                               

                                                                                

  def render( self, request ): 

      return self.rst               

                                                                                



resource = static.File('./htm/')                                                   

resource.processors = { '.html'  : ReStructured }                               

resource.indexNames = [ 'index.html']                                   

                                                                                

reactor.listenTCP(                                                               

      PORT,                                                                   

      server.Site( resource )                                                 

      )                                                                       

reactor.run( ) 

编辑 webmaster