Start jar package shell script

jar_name=xxx.jar
jar_path=/xxx/xxxx
log_path=/xxx/logs/`date +%y-%m-%d`_out.log
# Point to custom jdk
#export JAVA_HOME=/xxx/xxx/jdk1.8.0_131
#export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
#export PATH=$JAVA_HOME/bin:$PATH
stop() {
    
  echo ""
  pid=$(ps -ef | grep $jar_name | grep -v grep | awk '{
    print $2}')
  if [ -z $pid ]; then # -z  Yes judge whether it is empty 
    echo "${jar_name} Not running ！"
  else
    echo " Ready to shut down the process $pid"
    kill -9 $pid
    sleep 0.5
    echo "${jar_name} closed ！"
  fi
  echo ""
}

start() {
    
  echo ""
  pid=$(ps -ef | grep $jar_name | grep -v grep | awk '{
    print $2}')
  if [ -z $pid ]; then
    cd $jar_path  #  Go here jar The package directory executes the command , To use jar_path Under the config file , Looks like java The program can only recognize the configuration under the current command directory , Otherwise, it is to use the entered Jar Package configuration file .
    nohup java -jar $jar_name >$log_path 2>&1 &
    pid=$(ps -ef | grep $jar_name | grep -v grep | awk '{
    print $2}')
    echo " application  ${jar_name} Successful launch ,pid=${pid}"
    # tail -f $log_path
 
  else
    echo " application  ${jar_name}  Running ,pid = ${pid}"
  fi
  echo ""
}

status() {
    
  echo ""
  pid=$(ps -ef | grep $jar_name | grep -v grep | awk '{
    print $2}')
  if [ -z $pid ]; then
    echo " application  ${jar_name}  Not running "
  else
    echo " application  ${jar_name}  Running ,pid = ${pid}"
  fi
  echo ""

}
restart() {
    
  stop

  sleep 2
  echo " Stop completing , Ready to start jar package "
  start
}
action() {
    
  echo " Please enter a number to select the action to perform ：1= start-up ,2= restart ,3= stop it ,4= View running status ,5= sign out "
  echo ' The number you enter is :'
  read a
  case $a in
  "1")
    start
    ;;
  "2")
    restart
    ;;
  "3")
    stop
    ;;
  "4")
    status
    ;;
  "5")
    exit 1
    ;;
  *)
    echo " Input error , Please re-enter "
    action
    ;;
  esac
}

action