Linux under the common shell script starts jar (Micro Services)

Linux under the common shell script starts jar (Micro Services)

 

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

 

Use:

app-jar.sh  start

app-jar.sh  stop

app-jar.sh  restart

 

Note: This script only needs to be placed jar package to the current directory, the current directory script allows only one jar package, if more will also start or restart

Under needed reminder: Start jar package can not change the name of the body, to prevent the script is invalid. The company is currently in production environments, want you to correct and make recommendations.