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Linux中使用Crontab定时监测维护Tomcat应用程序的方法

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Linux中使用Crontab定时监测维护Tomcat应用程序的方法

监测的应用接口: 新闻接口、天气接口
处理方法:应用接口不可用时自动重启Tomcat,并发送告警邮件给相关人员

#!/bin/bash
#---------------------------------------------------------
# 功能说明:
#	监控指定HTTP服务是否可用,如果不可用立即重启Tomcat
#
# 使用说明:
#	1. 将此脚本放置在/home/opentsp/crontab/目录下。
#	2. 修改脚本执行权下为可执行权限。
#	3. 添加到定时任务中,定时执行时间(建议为20分钟)
#	4. 修改邮件发送人员信息列表(当服务重启时发邮件给相关人员)
#      - 周凌飞(2014-08-13)
#---------------------------------------------------------
export LC_ALL=zh_CN.UTF-8

#网站地址、参数
SERVER_NAME="趣驾云接口服务"
URL_2="http://127.0.0.1/get_rss_news?p=%7b%27chId%27:%27TIYU%27%7d"
KeyWorld_2=''
URL_3="http://127.0.0.1/get_json_weather?p=%7blon:116.407617,lat:39.993956,date:1%7d"
KeyWorld_3='temperature'

#邮件发送列表
mail_ary=(
xxxxxxxxx@navinfo.com
xxxxxxxxx@navinfo.com
xxxxxxxxx@navinfo.com
)

#接口调用失败的处理方法
function doFail(){
	local ipinfo=$(ifconfig |sed -n '2p'|awk '{print substr($2,6)}');
	# 发送邮件
	for _v in ${mail_ary[*]} ; do
		echo "[$SERVER_NAME 异常] - [$(date -d "0 min" +"%Y-%m-%d %H:%M:%S")] - [请求地址: $1] - [请求返回码: $2]" | mail -s ${ipinfo}服务异常 ${_v}
	done
	# 写入日志
	echo "[ERROR] - [$(date -d "0 min" +"%Y-%m-%d %H:%M:%S")] - 返回码[$2] - 重启Tomcat服务" >> detect-http.log
	# 关闭Tomcat
	sh /home/opentsp/crontab/ibr-shutdown.sh
	exit;
}

#请求超时时间设置
TIME_OUT=40
function doCheck(){
	local URL_X=$1;
	local KeyWorld_X=$2;
	HTTP_STATUS_CODE=`curl -m $TIME_OUT -o /dev/null -s -w "%{http_code}" "${URL_X}"`
	if [ $HTTP_STATUS_CODE != 200 ];then
		#请求失败
		echo "-> Fail - 返回码${HTTP_STATUS_CODE}";
		doFail ${URL_X} ${HTTP_STATUS_CODE};
	else
		#服务器正常响应,检查返回内容
		if curl -m ${TIME_OUT} -s ${URL_X} | grep -q ${KeyWorld_X};then
			echo "-> SUCCESS";
		else
			echo "->> Fail";
			# 返回内容错误处理
			doFail ${URL_X} ${HTTP_STATUS_CODE};
		fi
	fi
}

#
#检查 - 新闻
doCheck ${URL_2} ${KeyWorld_2}
#检查 - 天气
doCheck ${URL_3} ${KeyWorld_3}</pre>

<p>将以上代码放入到Linux的定时任务中即可,定时任务时间建议为20分钟一次。</p></div>
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$(".to_top").click(function() {
if ($('html').scrollTop()) {
$('html').animate({
scrollTop: 0
}, 300);
return false;
}
$('body').animate({
scrollTop: 0
}, 300);
return false;
});
});
</script>
</body>
</html>