Python實現(xiàn)從log日志中提取ip的方法【正則提取】

更新時間：2018年03月31日 09:37:23 作者：開心果汁

這篇文章主要介紹了Python實現(xiàn)從log日志中提取ip的方法,涉及Python文件讀取、數(shù)據(jù)遍歷、正則匹配等相關操作技巧,需要的朋友可以參考下

本文實例講述了Python實現(xiàn)從log日志中提取ip的方法。分享給大家供大家參考，具體如下：

log日志內容如下(myjob.log)：

124.90.53.68 - - [05/Feb/2018 11:37:07] "GET /favicon.ico HTTP/1.1" 404 -
61.148.245.145 - - [05/Feb/2018 12:37:44] "GET / HTTP/1.1" 200 -
61.148.245.145 - - [05/Feb/2018 12:37:44] "GET /apple-touch-icon-120x120-precomposed.png HTTP/1.1" 404 -
61.148.245.145 - - [05/Feb/2018 12:37:44] "GET /apple-touch-icon-120x120.png HTTP/1.1" 404 -
61.148.245.145 - - [05/Feb/2018 12:37:45] "GET /apple-touch-icon-precomposed.png HTTP/1.1" 404 -
61.148.245.145 - - [05/Feb/2018 12:37:45] "GET /apple-touch-icon.png HTTP/1.1" 404 -
61.148.245.145 - - [05/Feb/2018 12:37:45] "GET /static/favicon.ico HTTP/1.1" 200 -
101.226.33.218 - - [05/Feb/2018 13:07:39] "GET / HTTP/1.1" 200 -
101.226.33.219 - - [05/Feb/2018 13:09:46] "GET / HTTP/1.1" 200 -
101.226.33.219 - - [05/Feb/2018 13:09:46] "GET /static/youkulogo.png HTTP/1.1" 200 -
101.226.33.219 - - [05/Feb/2018 13:09:46] "GET /static/iqiyi.png HTTP/1.1" 200 -
101.226.33.219 - - [05/Feb/2018 13:09:46] "GET /static/qqlogo.png HTTP/1.1" 200 -
124.202.223.62 - - [05/Feb/2018 14:29:45] "GET / HTTP/1.1" 200 -
124.202.223.62 - - [05/Feb/2018 14:29:47] "GET /static/youkulogo.png HTTP/1.1" 200 -
124.202.223.62 - - [05/Feb/2018 14:29:48] "GET /static/qqlogo.png HTTP/1.1" 200 -
124.202.223.62 - - [05/Feb/2018 14:29:48] "GET /static/iqiyi.png HTTP/1.1" 200 -
124.202.223.62 - - [05/Feb/2018 14:29:49] "GET /static/favicon.ico HTTP/1.1" 200 -

提取ip:

# encoding: utf-8
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
import pandas as pd
import re
import time
import requests
time1=time.time()
######函數(shù)功能:能夠提取ip地址，并且去重################
def read_file(input_file_name,output_file_name):
  _fLog = open(input_file_name)
  sep = '\n'
  ip_list=[]
  for each in _fLog:
    ip=re.findall(r'(?<![\.\d])(?:\d{1,3}\.){3}\d{1,3}(?![\.\d])',str(each),re.S)
    ip_list.append(ip[0])
  # 列表去重:通過set方法進行處理
  ids = list(set(ip_list))
  print "共解析ip個數(shù):%s "% len(ids)
  ##寫出數(shù)據(jù)到本地
  # 設置輸出文件路徑
  out = open(output_file_name, "a")
  # out.write("ip" + sep)
  for each in ids:
    print each
    out.write(each + sep)
  ##關閉連接
  out.close()
  _fLog.close()
  print "ip提取完畢~~"
####主函數(shù)################
if __name__ == '__main__':
  input_file_name = "C:/myjob.log"
  output_file_name = "c:/myjob.txt"
  read_file(input_file_name, output_file_name)
  time2 = time.time()
  print u'總共耗時：' + str(time2 - time1) + 's'

運行結果：

共解析ip個數(shù):5
61.148.245.145
124.90.53.68
124.202.223.62
101.226.33.219
101.226.33.218
ip提取完畢~~
總共耗時：0.000999927520752s
Process finished with exit code 0

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更多關于Python相關內容可查看本站專題：《Python正則表達式用法總結》、《Python數(shù)據(jù)結構與算法教程》、《Python函數(shù)使用技巧總結》、《Python字符串操作技巧匯總》、《Python入門與進階經(jīng)典教程》及《Python文件與目錄操作技巧匯總》

希望本文所述對大家Python程序設計有所幫助。

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