tomcat日志脚本

#!/usr/bin/env python
# coding=utf-8
#---------------------------------------------------------
# Name:         Tomcat错误日志发送邮件脚本
# Purpose:      收集Tomcat异常日志并发送邮件
# Version:      1.0
# Author:       LEO
# EMAIL:        [e-mail]
# Created:      2015-11-10
# Copyright:    (c) LEO 2013
# Python：       2.7/2.4  皆可使用
#--------------------------------------------------------
fromsmtplib importSMTP
fromemail importMIMEText
fromemail importHeader
fromos.path importgetsize
fromsys importexit
fromre importcompile, IGNORECASE
#定义主机 帐号 密码 收件人 邮件主题
smtpserver ='smtp.163.com'
sender ='帐号/发件人'
password ='密码'
receiver =('收件人1','收件人2',)
subject =u'Web服务器Tomcat日志错误信息'
From =u'xxx Web服务器'
To =u'服务器管理员'
#定义tomcat日志文件位置
tomcat_log ='/usr/local/tomcat/logs/catalina.out'
#该文件是用于记录上次读取日志文件的位置,执行脚本的用户要有创建该文件的权限
last_position_logfile ='/tmp/last_position.txt'
#匹配的错误信息关键字的正则表达式
pattern =compile(r'Exception|^\t+\bat\b',IGNORECASE)
#发送邮件函数
defsend_mail(error):
#定义邮件的头部信息
header =Header.Header
msg =MIMEText.MIMEText(error,'plain','utf-8')
msg['From'] =header(From)
msg['To'] =header(To)
msg['Subject'] =header(subject+'\n')
#连接SMTP服务器，然后发送信息
smtp =SMTP(smtpserver)
smtp.login(sender, password)
smtp.sendmail(sender, receiver, msg.as_string())
smtp.close()
#读取上一次日志文件的读取位置
defget_last_position(file):
try:
data =open(file,'r')
last_position =data.readline()
iflast_position:
last_position =int(last_position)
else:
last_position =0
except:
last_position =0
returnlast_position
#写入本次日志文件的本次位置
defwrite_this_position(file,last_positon):
try:
data =open(file,'w')
data.write(str(last_positon))
data.write('\n'+"Don't Delete This File,It is Very important for Looking Tomcat Error Log !! \n")
data.close()
except:
print"Can't Create File !"+file
exit()
#分析文件找出异常的行
defanalysis_log(file):
error_list =[]                                     
try:
data =open(file,'r')
except:
exit()
last_position =get_last_position(last_position_logfile)
this_postion =getsize(tomcat_log)
ifthis_postion < last_position:
data.seek(0)
elifthis_postion ==last_position:
exit()
elifthis_postion > last_position:
data.seek(last_position)
forline indata:
ifpattern.search(line):
error_list.append(line)
write_this_position(last_position_logfile,data.tell())
data.close()
return''.join(error_list)
#调用发送邮件函数发送邮件
error_info =analysis_log(tomcat_log)
iferror_info:
send_mail(error_info)