jar 包启动脚本

 #!/bin/bash

 JAVA_HOME=/usr/java/default

 #java虚拟机启动参数
 JAVA_OPTS="-server -Xms800m -Xmx800m -Xmn256m -Xss256k -XX:PermSize=256M -XX:MaxPermSize=512M -XX:SurvivorRatio=8 -XX:MaxTenuringThreshold=5 -XX:GCTimeRatio=19 -Xnoclassgc -XX:+DisableExplicitGC -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+UseCMSCompactAtFullCollection -XX:CMSFullGCsBeforeCompaction=0 -XX:-CMSParallelRemarkEnabled -XX:CMSInitiatingOccupancyFraction=70 -XX:SoftRefLRUPolicyMSPerMB=0 -XX:+PrintClassHistogram -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintHeapAtGC -Xloggc:/data/logs/newslib-app-api/gc.log "

 #这里可替换为你自己的执行程序，其他代码无需更改
 APP_NAME=video.jar
 APP_USER=tomcat

 #SHUTDOWN_WAIT is wait time in seconds for java proccess to stop
 SHUTDOWN_WAIT=

 workdir=$(cd $(dirname $); pwd)

 #使用说明，用来提示输入参数
 usage() {
     echo "Usage: sh 执行脚本.sh [start|stop|restart|status]"
     exit
 }

 #检查程序是否在运行
 is_exist(){
   pid=`ps -ef|grep $APP_NAME|grep -v grep|awk '{print $2}' `
   #如果不存在返回1，存在返回0
   if [ -z "${pid}" ]; then
    return
   else
     return
   fi
 }

 # @args <beg> <end>
 # return random integer in [<beg>, <end>)
 function random_range() {
     local beg=$
     local end=$
     echo $((RANDOM % ($end - $beg) + $beg))
 }

 #启动方法
 start(){
   is_exist
   if [ $? -eq "" ]; then
     echo "${APP_NAME} is already running. pid=${pid} ."
   else
     #port=$(random_range  )
     port=
     nohup java $JAVA_OPTS -jar $workdir/$APP_NAME --server.port=$port > /dev/null >& &
     is_exist
     if [ $? -eq "" ]; then
        echo "${APP_NAME} started. pid=${pid}, port=$port."
     fi
   fi
 }

 #停止方法
 stop(){
   is_exist
   if [ $? -eq "" ]; then
     kill $pid

     let kwait=$SHUTDOWN_WAIT
     count=;
     until [ `ps -p $pid | grep -c $pid` = '' ] || [ $count -gt $kwait ]
     do
       echo -n -e "\n\e[00;31mwaiting for processes to exit\e[00m";
       sleep
       let count=$count+;
     done

     if [ $count -gt $kwait ]; then
       echo -n -e "\n\e[00;31mkilling processes didn't stop after $SHUTDOWN_WAIT seconds\e[00m"
       kill - $pid
     fi

     echo "${APP_NAME} stoped."
   else
     echo "${APP_NAME} is not running"
   fi
 }

 #输出运行状态
 status(){
   is_exist
   if [ $? -eq "" ]; then
     echo "${APP_NAME} is running. Pid is ${pid}"
   else
     echo "${APP_NAME} is NOT running."
   fi
 }

 #重启
 restart(){
   stop
   start
 }

 #根据输入参数，选择执行对应方法，不输入则执行使用说明
 case "$1" in
   "start")
     start
     ;;
   "stop")
     stop
     ;;
   "status")
     status
     ;;
   "restart")
     restart
     ;;
   *)
     usage
     ;;
 esac