开启批量自启jar包程序（springboot）（crontab和rc.local运行java程序注意环境变量）

开启批量自启jar包程序

脚本&＃xff1a;

#!/bin/sh#echo &＃96;date &＃43;%F-%T&＃96; > /test.txt
export JAVA_HOME&＃61;/opt/Java/jdk1.8.0_65
export JRE_HOME&＃61;${JAVA_HOME}/jre
#要加环境变量 并且让其生效&＃xff01;&＃xff01;&＃xff01; 原先是没有开头这几句的环境变量的。
source /etc/profile# 端口号
PORTS&＃61;(8848 9999 3000 4000 18001 18002 18003 18005 18007 18008 18012 18020 6666)
# 模块
MODULES&＃61;(okay-register okay-gateway okay-auth okay-upms-biz cdnaturemms-portal cdnaturemms-dr cdnaturemms-cp cdnaturemms-subsys ticket-pc ticket-mobile ticket-web guide-pc bsp-pay-platform)
# 模块名称
MODULE_NAMES&＃61;(注册中心 网关 AUTH UPMS cdnaturemms-portal cdnaturemms-dr cdnaturemms-cp cdnaturemms-subsys ticket-pc ticket-mobile ticket-web guide-pc bsp-pay-platform)
# jar包数组
JARS&＃61;(okay-register.jar okay-gateway.jar okay-auth.jar okay-upms-biz.jar cdnaturemms-portal.jar cdnaturemms-dr.jar cdnaturemms-cp.jar cdnaturemms-subsys.jar ticket-pc.jar ticket-mobile.jar ticket-web.jar guide-pc.jar bsp-pay-platform.jar)
# jar包路径
JAR_PATH&＃61;&＃39;/opt/Applications/api&＃39;
# 日志路径
LOG_PATH&＃61;&＃39;/opt/Applications/api/logs&＃39;
start() {local MODULE&＃61;local MODULE_NAME&＃61;local JAR_NAME&＃61;local command&＃61;"$1"local commandOk&＃61;0local count&＃61;0local okCount&＃61;0local port&＃61;0for((i&＃61;0;i<${#MODULES[&＃64;]};i&＃43;&＃43;))doMODULE&＃61;${MODULES[$i]}MODULE_NAME&＃61;${MODULE_NAMES[$i]}JAR_NAME&＃61;${JARS[$i]}PORT&＃61;${PORTS[$i]}if [ "$command" &＃61;&＃61; "all" ] || [ "$command" &＃61;&＃61; "$MODULE" ];thencommandOk&＃61;1count&＃61;0PID&＃61;&＃96;pgrep -f "$JAR_NAME"&＃96;#PID&＃61;&＃96;ps -ef |grep $(echo $JAR_NAME | awk -F/ &＃39;{print $NF}&＃39;) | grep -v grep | awk &＃39;{print $2}&＃39;&＃96;if [ -n "$PID" ];thenecho "$MODULE---$MODULE_NAME:已经运行,PID&＃61;$PID"elseexec nohup java -Xms256m -Xmx512m -jar $JAR_PATH/$JAR_NAME >> $LOG_PATH/$MODULE.log 2>&1 &sleep 25sPID&＃61;&＃96;ps -ef |grep $(echo $JAR_NAME | awk -F/ &＃39;{print $NF}&＃39;) | grep -v grep | awk &＃39;{print $2}&＃39;&＃96;while [ -z "$PID" ]doif (($count &＃61;&＃61; 30));thenecho "$MODULE---$MODULE_NAME:$(expr $count \* 25)秒内未启动,请检查!"breakficount&＃61;$(($count&＃43;1))echo "$MODULE_NAME启动中.................."sleep 25sPID&＃61;&＃96;ps -ef |grep $(echo $JAR_NAME | awk -F/ &＃39;{print $NF}&＃39;) | grep -v grep | awk &＃39;{print $2}&＃39;&＃96;doneokCount&＃61;$(($okCount&＃43;1))echo "$MODULE---$MODULE_NAME:已经启动成功,PID&＃61;$PID"fifidoneif(($commandOk &＃61;&＃61; 0));thenecho "第二个参数输入错误"elseecho "............本次共启动:$okCount个服务..........."fi
}stop() {local MODULE&＃61;local MODULE_NAME&＃61;local JAR_NAME&＃61;local command&＃61;"$1"local commandOk&＃61;0local okCount&＃61;0for((i&＃61;0;i<${#MODULES[&＃64;]};i&＃43;&＃43;))doMODULE&＃61;${MODULES[$i]}MODULE_NAME&＃61;${MODULE_NAMES[$i]}JAR_NAME&＃61;${JARS[$i]}if [ "$command" &＃61; "all" ] || [ "$command" &＃61; "$MODULE" ];thencommandOk&＃61;1PID&＃61;&＃96;ps -ef |grep $(echo $JAR_NAME | awk -F/ &＃39;{print $NF}&＃39;) | grep -v grep | awk &＃39;{print $2}&＃39;&＃96;if [ -n "$PID" ];thenecho "$MODULE---$MODULE_NAME:准备结束,PID&＃61;$PID"kill -9 $PIDPID&＃61;&＃96;ps -ef |grep $(echo $JAR_NAME | awk -F/ &＃39;{print $NF}&＃39;) | grep -v grep | awk &＃39;{print $2}&＃39;&＃96;while [ -n "$PID" ]dosleep 3sPID&＃61;&＃96;ps -ef |grep $(echo $JAR_NAME | awk -F/ &＃39;{print $NF}&＃39;) | grep -v grep | awk &＃39;{print $2}&＃39;&＃96;doneecho "$MODULE---$MODULE_NAME:成功结束"okCount&＃61;$(($okCount&＃43;1))elseecho "$MODULE---$MODULE_NAME:未运行"fifidoneif (($commandOk &＃61;&＃61; 0));thenecho "第二个参数输入错误"elseecho "............本次共停止:$okCount个服务............"fi
}case "$1" instart)start "$2";;stop)stop "$2";;restart)stop "$2"sleep 3sstart "$2";;*)echo "第一个参数请输入:start|stop|restart"exit 1;;
esac

对应的jar包:

[root&＃64;OkayGis-20139 api]# ls
bjmms-cp-18003.out bsp-pay-platform-6666.out cdnaturemms-portal-18001.out hs_err_pid28087.log okay-gateway-9999.out okay-upms-biz.jar ticket-pc.jar
bjmms-cp.jar bsp-pay-platform.jar cdnaturemms-portal.jar logs okay-gateway.jar StartapiJar.sh ticket-web.jar
bjmms-dr-18002.out cdnaturemms-cp-18003.out cdnaturemms-subsys-18005.out oa-web-18004.out okay-register-8848.out StartapiJar.sh.bak
bjmms-dr.jar cdnaturemms-cp.jar cdnaturemms-subsys.jar oa-web.jar okay-register.jar ticket-mobile-18008.out
bjmms-portal-18001.out cdnaturemms-dr-18002.out guide-pc-18020.out okay-auth-3000.out okay-upms-4000.out ticket-mobile.jar
bjmms-portal.jar cdnaturemms-dr.jar guide-pc.jar okay-auth.jar okay-upms-biz-111.jar ticket-pc-18007.out
[root&＃64;OkayGis-20139 api]# pwd
/opt/Applications/api

对应的log文件&＃xff1a;

[root&＃64;OkayGis-20139 logs]# ls
bjmms-cp bsp-pay-platform.out cdnaturemms-dr.log cdnaturemms-subsys guide-pc.log okay-gateway.log ticket-mobile ticket-pc.out
bjmms-dr cdnaturemms-cp cdnaturemms-dr.out cdnaturemms-subsys.log guide-pc.out okay-register.log ticket-mobile.log ticket-web
bjmms-portal cdnaturemms-cp.log cdnaturemms-portal cdnaturemms-subsys.out oa-web okay-register.out ticket-mobile.out ticket-web.log
bsp-pay-platform cdnaturemms-cp.out cdnaturemms-portal.log dyms-dr-18002.out okay-auth okay-upms-biz ticket-pc ticket-web.out
bsp-pay-platform.log cdnaturemms-dr cdnaturemms-portal.out guide-pc okay-auth.log okay-upms-biz.log ticket-pc.log work


corntab -l

[root&＃64;OkayGis-20139 api]# crontab -l
&＃64;reboot /opt/Applications/api/StartapiJar.sh start all >>/opt/2021-1812nohup.out 2>&1


遇到的坑&＃xff1a;&＃xff08;crontab 和 rc.local运行java程序注意环境变量&＃xff01;&＃xff09;

开始讲故事 / 排错过程 &＃xff1a;
手动运行StartapiJar.sh 脚本是正常的。 sh StartapiJar.sh start all

但是将脚本放到 rc.local 和 crontab后&＃xff0c;运行结果异常&＃xff0c;一直卡在“注册中心启动中”

开set -x 排错。 看样子是没获取到PID &＃xff0c;导致一直循环&＃xff0c;在外面 ps -ef | grep java结果是空的。那估计问题出在java -jar xxx.jar上。
开始还以为是给的sleep秒数太少。

查看jar包生成的日志&＃xff1a;发现这个错误&＃xff1a;nohup: failed to run command ‘java’ no such file or directory

cat okay-register.log


马龙帅的指导 pgrep &＃xff1a;

pgrep命令以名称为依据从运行进程队列中查找进程&＃xff0c;并显示查找到的进程id。每一个进程ID以一个十进制数表示&＃xff0c;通过一个分割字符串和下一个ID分开&＃xff0c;默认的分割字符串是一个新行。对于每个属性选项&＃xff0c;用户可以在命令行上指定一个以逗号分割的可能值的集合。
#这样上面的PID获取就不用写一长串的东西了。
pgrep -f "$JAR_NAME"


参考&＃xff1a;

https://www.cnblogs.com/zhucezmf/p/10459081.html
https://blog.csdn.net/Nightwish5/article/details/117066081
https://blog.csdn.net/weixin_38169722/article/details/101771446