监控tomcat服务异常重启

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

format_time=`date +"%Y-%m-%d_%H:%M:%S"` 
# 获取tomcat PPID  
TomcatID=$(ps -ef |grep tomcat |grep -w 'jdk1.8.0_171'|grep -v 'grep'|awk '{print $2}')  
  
# tomcat_startup  
StartTomcat=/home/apache-tomcat-8.0.53/bin/startup.sh  
  
  
#TomcatCache=/home/apache-tomcat-8.0.53/work  
  
# 定义要监控的页面地址  
WebUrl_1=http://127.0.0.1:8081/ihug/info/interactive.do
#WebUrl_2=http://127.0.0.1:8081/ihug/kc/cSubmit.do
WebUrl_2=http://127.0.0.1:8081/ihug/info/interactive.do
# 日志输出  
GetPageInfo=/home/apache-tomcat-8.0.53/logs/TomcatMonitor/GetPageInfo.log 
TomcatMonitorLog=/home/apache-tomcat-8.0.53/logs/TomcatMonitor/TomcatMonitor.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_1=$(curl -s -o $GetPageInfo -m 10 --connect-timeout 10 $WebUrl_1 -w %{http_code})
	sleep 2
    TomcatServiceCode_2=$(curl -s -o $GetPageInfo -m 10 --connect-timeout 10 $WebUrl_2 -w %{http_code})  	
    if [ $TomcatServiceCode_1 -eq 200 ] || [ $TomcatServiceCode_2 -eq 200 ];then  
        echo "[info]返回码为$TomcatServiceCode_1,$TomcatServiceCode_2,tomcat启动成功,页面正常."  
    else  
        echo "[error]访问出错，状态码为$TomcatServiceCode_1,$TomcatServiceCode_2,错误日志已输出到$GetPageInfo"
		#当前查看数据库连接数
		echo "---当前查看数据库连接数----" 
		netstat -anp | grep 3306 >> /home/apache-tomcat-8.0.53/logs/TomcatMonitor/status.log
		#查看tomcat连接数
		echo "----查看tomcat连接数---------" 
		netstat -anp | grep 8081 >> /home/apache-tomcat-8.0.53/logs/TomcatMonitor/status.log
		#查看tomcat状态
		echo "---查看tomcat状态----"
		echo "---查看tomcat状态jmap heap----" >> /home/apache-tomcat-8.0.53/logs/TomcatMonitor/status.log
        jmap -heap $TomcatID >> /home/apache-tomcat-8.0.53/logs/TomcatMonitor/status.log
		echo "---查看tomcat状态jstat gc----" >> /home/apache-tomcat-8.0.53/logs/TomcatMonitor/status.log
        jstat -gc $TomcatID 500 20 >> /home/apache-tomcat-8.0.53/logs/TomcatMonitor/status.log
		echo "---查看tomcat状态jstack----" >> /home/apache-tomcat-8.0.53/logs/TomcatMonitor/status.log
		jstack $TomcatID >> /home/apache-tomcat-8.0.53/logs/TomcatMonitor/status.log
        #将java堆输出为hprof二进制 格式文件
		jmap -dump:file=/home/apache-tomcat-8.0.53/logs/TomcatMonitor/dump_log_$format_time.hprof $TomcatID
        echo "[error]开始重启tomcat"  
        kill -9 $TomcatID  # 杀掉原tomcat进程  
        sleep 3  
        #rm -rf $TomcatCache # 清理tomcat缓存  
        JAVA_HOME=/home/jdk1.8.0_171
        PATH=$JAVA_HOME/bin:$PATH
        CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
        export JAVA_HOME
        export PATH
        export CLASSPATH
        $StartTomcat  
    fi  
  else  
    echo "[error]进程不存在!tomcat自动重启..."  
    echo "[info]$StartTomcat,请稍候......"  
    #rm -rf $TomcatCache
    JAVA_HOME=/home/jdk1.8.0_171
    PATH=$JAVA_HOME/bin:$PATH
    CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
    export JAVA_HOME
    export PATH
    export CLASSPATH 
    $StartTomcat  
  fi  
  echo "------------------------------"  
}  
Monitor>>$TomcatMonitorLog