Python实现的tcp端口检测操作示例


            本文实例讲述了Python实现的tcp端口检测操作。分享给大家供大家参考，具体如下：





# coding=utf-8

import sys

import socket

import re

def check_server(address, port):

  s = socket.socket()

  print 'Attempting to connect to %s on port %s' % (address, port)

  try:

    s.connect((address, port))

    print 'Connected to %s on port %s' % (address, port)

    return True

  except socket.error as e:

    print 'Connection to %s on port %s failed: %s' % (address, port, e)

    return False

if __name__ == '__main__':

  from argparse import ArgumentParser

  parser = ArgumentParser(description=u'TCP端口检测')

  parser.add_argument(

    '-a',

    '--address',

    dest='address',

    default='localhost',

    help='address for the server')

  parser.add_argument(

    '-p',

    '--port',

    dest="port",

    default=80,

    type=int,

    help='port for the server')

  args = parser.parse_args()

  check = check_server(args.address, args.port)

  print 'check_server returned %s' % check

  sys.exit(not check)







测试结果:



[hupeng@hupeng-vm Python]$python check_server.py && echo "SUCCESS"

Attempting to connect to localhost on port 80

Connected to localhost on port 80

check_server returned True

SUCCESS

[hupeng@hupeng-vm Python]$python check_server.py -p 81 && echo "Failure"

Attempting to connect to localhost on port 81

Connection to localhost on port 81 failed: [Errno 111] Connection refused

check_server returned False

[hupeng@hupeng-vm Python]$python check_server.py -p 81 || echo "Failure"

Attempting to connect to localhost on port 81

Connection to localhost on port 81 failed: [Errno 111] Connection refused

check_server returned False

Failure



附:

shell中&&和||的使用方法

命令的返回结果:真(返回0),假(返回非0)

command1  && command2: command1返回真时,command2才会被执行

command1  || command2:command1返回真时，command2就不会被执行

更多关于Python相关内容可查看本站专题：《Python Socket编程技巧总结》、《Python数据结构与算法教程》、《Python函数使用技巧总结》、《Python字符串操作技巧汇总》、《Python入门与进阶经典教程》及《Python文件与目录操作技巧汇总》

希望本文所述对大家Python程序设计有所帮助。