【Tomcat】监听tomcat活跃，宕机重启脚本

一.编写脚本

#!/bin/bash

TomcatID=$(netstat -nlp | awk -F'[ /]*' '/8080/{print $(7)}')
StartTomcat=/data/server/tomcat/bin/startup.sh
TomcatCache=/data/server/tomcat/work
WebUrl=http://xxxxx
GetPageInfo=/data/shfile/logs/Monitor_business_tomcat.Info
TomcatMonitorLog=/data/shfile/logs/Monitor_business_tomcat.log

Monitor()  
{
  echo "[info]开始监控 [tomcat]...[$(date +'%F %H:%M:%S')]"  
  if [[ $TomcatID ]];then # 这里判断TOMCAT进程是否存在  
    echo "[info]当前tomcat进程ID为:$TomcatID,继续检测页面..."  
    # 检测是否启动成功(成功的话页面会返回状态"200")  
    TomcatServiceCode=$(curl -s -o $GetPageInfo -m 10 --connect-timeout 10 $WebUrl -w %{http_code})
    if [ $TomcatServiceCode -eq 200 ];then
        echo "[info]页面返回码为$TomcatServiceCode,tomcat启动成功,测试页面正常......"  
    else
        echo "[error]tomcat页面出错,请注意......状态码为$TomcatServiceCode,错误日志已输出到$GetPageInfo"  
        echo "[error]页面访问出错,开始重启tomcat"  
        kill -9 $TomcatID  # 杀掉原tomcat进程  
        sleep 3
        $StartTomcat
    fi
  else
    echo "[error]tomcat进程不存在!tomcat开始自动重启..."  
    echo "[info]$StartTomcat,请稍候......"  
    $StartTomcat
  fi
  echo "------------------------------"  
}
Monitor>>$TomcatMonitorLog

如果有关于JAVA_HOME的报错可以在前面加一句export JAVA_HOME=/usr/java/jdk

二.设置定时业务

vim /etc/crontab

*/1 * * * * root bash /data/shfile/monitor.sh

需要给脚本加上对应用户的执行权限，日志文件夹加上可写权限