Python中asyncore的用法实例

本文实例讲述了python中asyncore模块的用法，分享给大家供大家参考。具体方法如下：

实例代码如下:

##asyncore 

import asyncore,socket 

########################################################################
class AsyncGet(asyncore.dispatcher):
  """
  the defined class
  """ 

  #----------------------------------------------------------------------
  def __init__(self, host):
    """Constructor"""
    asyncore.dispatcher.__init__(self)
    self.host = host
    self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
    self.connect((host, 80))
    self.request = "Get /index.html HTTP/1.0\r\n\r\n"
    self.outf = None
    print "连接 :", host 

  def handle_connect(self):
    print 'connect:', self.host
    pass
  def handle_read(self):
    if not self.outf:
      print '正在连接:',self.host
    self.outf = open("%s.txt" % self.host, 'wb')
    data = self.recv(8192)
    if data:
      self.outf.write(data) 

    pass
  def handle_writebale(self):
    return len(self.request) 

  def handle_write(self):
    num_sent = self.send(self.request)
    pass 

  def handle_close(self):
    asyncore.dispatcher.close(self)
    print "socket close in:",self.host
    if self.outf:
      self.outf.close()
    pass 

if __name__ == "__main__":
  AsyncGet("www.python.org")
  asyncore.loop() 

import asyncore,socket 

########################################################################
class AsyncGet(asyncore.dispatcher):
  """
  the defined class
  """ 

  #----------------------------------------------------------------------
  def __init__(self, host):
    """Constructor"""
    asyncore.dispatcher.__init__(self)
    self.host = host
    self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
    self.connect((host, 80))
    self.request = "Get /index.html HTTP/1.0\r\n\r\n"
    self.outf = None
    print "连接 :", host 

  def handle_connect(self):
    print 'connect:', self.host
    pass
  def handle_read(self):
    if not self.outf:
      print '正在连接:',self.host
    self.outf = open("%s.txt" % self.host, 'wb')
    data = self.recv(8192)
    if data:
      self.outf.write(data) 

    pass
  def handle_writebale(self):
    return len(self.request) 

  def handle_write(self):
    num_sent = self.send(self.request)
    pass 

  def handle_close(self):
    asyncore.dispatcher.close(self)
    print "socket close in:",self.host
    if self.outf:
      self.outf.close()
    pass 

if __name__ == "__main__":
  AsyncGet("www.python.org")
  asyncore.loop()

结果文件的内容为:

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>302 Found</title>
</head><body>
<h1>Found</h1>
<p>The document has moved <a href="http://www.python.org">here</a>.</p>
<hr>
<address>Apache/2.2.16 (Debian) Server at dinsdale.python.org Port 80</address>
</body></html>

希望本文所述对大家的Python程序设计有所帮助。