Linux下shell通用脚本启动jar（微服务）

linux下shell通用脚本启动jar（微服务）

 

vim app_jar.sh

#!/bin/bash

#source /etc/profile
# auth：liucx
# please change these parameters according to your real env.
# set java home: remember that dolphin only supports jdk8!
java_home=/usr/java/jdk1.8.0_162

# application directory
cd `dirname $0`
app_home=`pwd`

app_name="`cd ${app_home} && find -name '*.jar' `"
jar_home=`pwd |awk -f"/" '{print $nf}'`
# java jvm lunch parameters
if [ x"$java_mem_opts" == x ];then
    java_mem_opts="-server -xms512m -xmx512m -xmn128m -xss256k -xx:+disableexplicitgc -xx:+useconcmarksweepgc -xx:+cmsparallelremarkenabled -xx:largepagesizeinbytes=128m -xx:+usefastaccessormethods -xx:+usecmsinitiatingoccupancyonly -xx:cmsinitiatingoccupancyfraction=70 "
fi


# waiting timeout for starting, in seconds
start_wait_timeout=30

psid=0
 
checkpid() {
   javaps=`$java_home/bin/jps -l | grep "$jar_home"`
   if [ -n "$javaps" ]; then
      psid=`echo $javaps | awk '{print $1}'`
   else
      psid=0
   fi
}



start() {
   checkpid

   if [ $psid -ne 0 ]; then
      echo "================================"
      echo "warn: $app_name already started! (pid=$psid)"
      echo "================================"
   else
      echo -n "starting $app_name ..."
      #-dspring.profiles.active=dev 指定环境
      nohup $java_home/bin/java -jar -dspring.profiles.active=dev -dconfig_enable=true $java_mem_opts  ${app_name} >${jar_home}.log 2>&1 &   
      checkpid
      if [ $psid -ne 0 ]; then
         echo "(pid=$psid) [ok]"
      else
         echo "[failed]"
      fi
   fi
}

stop() {
    
   sleep 2
   checkpid

   if [ $psid -ne 0 ]; then
      echo -n "stopping $app_name ...(pid=$psid) "
      #kill -9 $psid
      kill -9 $psid
      if [ $? -eq 0 ]; then
         echo "[ok]"
      else
         echo "[failed]"
      fi

#      checkpid
#      if [ $psid -ne 0 ]; then
#         stop
#      fi
   else
      echo "================================"
      echo "warn: $app_name is not running"
      echo "================================"
   fi
}



status() {
   checkpid

   if [ $psid -ne 0 ];  then
      echo "$app_name is running! (pid=$psid)"
   else
      echo "$app_name is not running"
   fi
}


info() {
   echo "system information:"
   echo "****************************"
   echo `head -n 1 /etc/issue`
   echo `uname -a`
   echo
   echo "java_home=$java_home"
   echo `$java_home/bin/java -version`
   echo
   echo "app_home=$app_home"
   echo "app_name=$app_name"
   echo "****************************"
}

case "$1" in
   'start')
      start
      ;;
   'stop')
     stop
     ;;
   'restart')
     stop
     echo "you restart the application ..."
     start #
     ;;
   'status')
     status
     ;;
   'info')
     info
     ;;
  *)
     echo "usage: $0 {start|stop|restart|status|info}"
     exit 1
esac

 

使用方式：

app_jar.sh  start

app_jar.sh  stop

app_jar.sh  restart

 

注：该脚本只需要放在jar包当前目录下即可，脚本当前目录只允许存在一个jar包，如果多个会同时启动或重启

还需提醒下：启动的jar包名主体不能改变，防止脚本无效。目前正在公司生产环境使用中，希望您纠正，提出建议。