基于python实现的功能更强大的tomcat 守护进程。目前实现的功能：
1、通过性更强 －－－通过修改config文件即可实现对其他tomcat程序的守护；
2、具有日志查看 －－－ 轮询30个日志文件；
3、无需借助curl 等工具或安装其他环境 －－－借助py2exe可以将python脚本可以生成exe文件；
代码如下：
#!-*- encoding: utf-8 -*-
# code by yangbk
# mysite: www.361way.com
import urllib2
import logging
import os
import time
from ConfigParser import ConfigParser
from logging.handlers import TimedRotatingFileHandler
LOG_FILE = "./logs/output.log"
logger = logging.getLogger()
logger.setLevel(logging.INFO)
fh = TimedRotatingFileHandler(LOG_FILE,when='midnight',interval=1,backupCount=7) //每天
datefmt = '%Y-%m-%d %H:%M:%S'
format_str = '%(asctime)s %(levelname)s %(message)s '
formatter = logging.Formatter(format_str, datefmt)
fh.setFormatter(formatter)
fh.suffix = "%Y%m%d%H%M"
logger.addHandler(fh)
def getUrlcode(url):
try:
start = time.time()
response = urllib2.urlopen(url,timeout=10)
msg = 'httpcode is : ' + str(response.getcode()) + ' - open use time :' + str((time.time()-start)*1000) + 'ms'
logging.info(msg)
return response.getcode()
except urllib2.URLError as e:
msg = 'open url error ,reason is:' + str(e.reason)
logging.info(msg)
def get(field, key):
result = ""
try:
result = cf.get(field, key)
except:
result = ""
return result
def read_config(config_file_path, field, key):
cf = ConfigParser()
try:
cf.read(config_file_path)
result = cf.get(field, key)
except:
sys.exit(1)
return result
CONFIGFILE='./cfg/config.ini'
os.environ["JAVA_HOME"] = read_config(CONFIGFILE,'MonitorProgram','JAVA_HOME')
os.environ["CATALINA_HOME"] = read_config(CONFIGFILE,'MonitorProgram','CATALINA_HOME')
ProgramPath = read_config(CONFIGFILE,'MonitorProgram','StartPath')
ProcessName = read_config(CONFIGFILE,'MonitorProcessName','ProcessName')
url = read_config(CONFIGFILE,'MonitorUrl','Url')
#url = "http://dh.361way.com/"
while True:
HttpCode = getUrlcode(url)
if HttpCode is not 200:
command = 'taskkill /F /FI "WINDOWSTITLE eq ' + ProcessName + '"'
os.system(command)
os.system(ProgramPath)
time.sleep(30)
config.ini文件的内容如下：
[MonitorProgram]
StartPath: C:/tomcat/bin/startup.bat
CATALINA_HOME: C:\\tomcat\\
JAVA_HOME: C:\\Program Files\\Java\\jdk1.8.0_31
[MonitorProcessName]
ProcessName: tomcat_8080
[MonitorUrl]
Url: http://127.0.0.1:8080
以上代码如果仅仅只针对单个应用，代码可以更简洁，因为配置文件部分可以不通过configparse模块进行读取 。而且这里对configparse模块进行了重新处理（get函数与read_config函数），避免获取的key不存在时，出现的报错情况。具体出错时的报错见下图：
configparser
产生的日志文件内容如下：
2016-10-09 15:08:30 INFO open url error ,reason is:[Errno 10061]
2016-10-09 15:09:00 INFO httpcode is 200 - open url use time 111.999988556ms
2016-10-09 15:09:30 INFO httpcode is 200 - open url use time 7.99989700317ms
2016-10-09 15:10:00 INFO httpcode is 200 - open url use time 6.00004096167ms
除此之外，还可以增加邮件通知功能，具体可以参考：python邮件发送模块
代码稍作修改，也可以很方便的通过端口检测确认业务是否健康，端口检测的脚本内容如下：
import os
import socket
def IsOpen(ip,port):
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
try:
s.connect((ip,int(port)))
s.shutdown(2)
print '%d is open' % port
return True
except:
print '%d is down' % port
return False
if __name__ == '__main__':
IsOpen('127.0.0.1',800)
