Linux下shell脚本监控Tomcat的状态并实现自动启动的步骤

#!/bin/sh# func:自动监控tomcat脚本并且执行重启操作# author:EagleHao# date:2018-04-08# DEFINE# 获取tomcat进程ID（其中[grep -w 'tomcat']代码中的tomcat需要替换为你的tomcat文件夹名）TomcatID=$(ps -ef |grep tomcat |grep -w 'tomcat'|grep -v 'grep'|awk '{print $2}')# tomcat启动程序(这里注意tomcat实际安装的路径)StartTomcat=/opt/tomcat/bin/startup.shTomcatCache=/opt/tomcat/work#定义要监控的页面地址WebUrl=http://localhost:8080#日志输出GetPageInfo=/tmp/TomcatMonitor.InfoTomcatMonitorLog=/tmp/TomcatMonitor.logMonitor(){echo "[info]开始监控tomcat...[$(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 [ $TomcatServiceCode -eq 200 ];thenecho "[info]页面返回码为$TomcatServiceCode，tomcat启动成功，测试页面正常"elseecho "[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 3rm -rf $TomcatCache # 清理tomcat缓存$StartTomcatfielseecho "[error]tomcat进程不存在!tomcat开始自动重启..."echo "[info]$StartTomcat，请稍候..."rm -rf $TomcatCache$StartTomcatfiecho "--------------------------"}Monitor>>$TomcatMonitorLog