Python实现从log日志中提取ip的方法【正则提取】

更新时间：2020-05-26 07:48:01 作者：startmvc

本文实例讲述了Python实现从log日志中提取ip的方法。分享给大家供大家参考，具体如下：log

本文实例讲述了Python实现从log日志中提取ip的方法。分享给大家供大家参考，具体如下：

log日志内容如下(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()
######函数功能:能够提取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:通过set方法进行处理
 ids = list(set(ip_list))
 print "共解析ip个数:%s "% len(ids)
 ##写出数据到本地
 # 设置输出文件路径
 out = open(output_file_name, "a")
 # out.write("ip" + sep)
 for each in ids:
 print each
 out.write(each + sep)
 ##关闭连接
 out.close()
 _fLog.close()
 print "ip提取完毕~~"
####主函数################
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'总共耗时：' + str(time2 - time1) + 's'

运行结果：