用来在Linux下管理Java进程的脚本

#!/bin/bash
# chkconfig: 2345 80 20
# description: service name

waittime=0
waitExit(){
   while true:do
   if [ ! -d "/proc/$1" ]; then
       echo "process is finished"
       break
    else
      waittime=$(($waittime+1))
      sleep 1s
      echo "process is alive " $waittime
    fi
    if [ "$waittime" -eq 120 ]; then
      kill -9 $1
      break

    fi
   done
}
SERVICE_NAME=partner
PATH_TO_JAR=jar.jar
PID_PATH_NAME=/var/run/partner-pid
case $1 in
    start)
        echo "Starting $SERVICE_NAME ..."
        if [ ! -f $PID_PATH_NAME ]; then
            nohup java -jar  $PATH_TO_JAR /tmp 2>> /dev/null >> /dev/null &
                        echo $! > $PID_PATH_NAME
            echo "$SERVICE_NAME started ..."
        else
            echo "$SERVICE_NAME is already running ..."
        fi
    ;;
    stop)
        if [ -f $PID_PATH_NAME ]; then
            PID=$(cat $PID_PATH_NAME);
            echo "$SERVICE_NAME stoping ..."
            kill $PID;
            waitExit $PID;
            echo "$SERVICE_NAME stopped ..."
            rm $PID_PATH_NAME
        else
            echo "$SERVICE_NAME is not running ..."
        fi
    ;;
    restart)
        if [ -f $PID_PATH_NAME ]; then
            PID=$(cat $PID_PATH_NAME);
            echo "$SERVICE_NAME stopping ...";
            kill $PID;
            waitExit $PID;
            echo "$SERVICE_NAME stopped ...";
            rm $PID_PATH_NAME
            echo "$SERVICE_NAME starting ..."
            nohup java -jar  $PATH_TO_JAR /tmp 2>> /dev/null >> /dev/null &
                        echo $! > $PID_PATH_NAME
            echo "$SERVICE_NAME started ..."
        else
            echo "$SERVICE_NAME starting ..."
            nohup java -jar  $PATH_TO_JAR /tmp 2>> /dev/null >> /dev/null &
                        echo $! > $PID_PATH_NAME
            echo "$SERVICE_NAME started ..."
        fi
    ;;
esac