#!/bin/sh  
# function:自动监控tomcat进程，挂了就执行重启操作  
# author:huanghong  
# DEFINE  

#获取环境变量  
HOME=$ETC_HOME

# 获取tomcat PPID  
TomcatID=$(ps -ef |grep tomcat |grep -w ‘tomcat‘|grep -v ‘grep‘|awk ‘{print $2}‘)  

#获取端口号if($4>20) 打印出的 端口为80      {if($4<20000)打印的为 127.0.0.1 80   | sed ‘s/ //g‘ 去除字符串的空格
port=`netstat -antup |grep LISTEN | grep ${TomcatID} | sed ‘s/ //g‘| awk -F ‘:‘ ‘{if($4>20) {print $4}}‘`


# tomcat_startup tomcat启动路径
StartTomcat=$HOME/ETC_Managent/apache-tomcat/bin/startup.sh  
  
# 清理tomcat缓存   
TomcatCache=$HOME/ETC_Managent/apache-tomcat/work  
  
# 定义要监控的页面地址  
WebUrl=http://localhost:$port/depot/TestServlet  


#无底洞，不输出。

GetPageInfo=/dev/null

# 日志输出  
TomcatMonitorLog=$HOME/ETC_Controller/sbin/CheckStatus.log
  

Monitor()  
{  
  echo "[info]开始监控tomcat...[$(date +‘%F %H:%M:%S‘)]"  
  if [ $TomcatID ];then  
    echo "[info]tomcat进程ID为:$TomcatID."  
    # 获取返回状态码  
    TomcatServiceCode=$(curl -s -o $GetPageInfo -m 10 --connect-timeout 10 $WebUrl -w %{http_code})  
    if [ $TomcatServiceCode -eq 200 ];then  
        echo "[info]返回码为$TomcatServiceCode,tomcat启动成功,页面正常."  
    else  
        echo "[error]访问出错，状态码为$TomcatServiceCode,错误日志已输出到$GetPageInfo"  
        echo "[error]开始重启tomcat"  
        kill -9 $TomcatID  # 杀掉原tomcat进程  
        sleep 3  
        #rm -rf $TomcatCache # 清理tomcat缓存  
        $StartTomcat  
    fi  
  else  
    echo "[error]进程不存在!tomcat自动重启..."  
    echo "[info]$StartTomcat,请稍候......"  
    #rm -rf $TomcatCache  
    $StartTomcat  
  fi  
  echo "------------------------------"  
}  
Monitor>>$TomcatMonitorLog