1 #!/bin/bash

  2

  3 JAVA_HOME=/usr/java/default

  4

  5 #java虚拟机启动参数

  6 JAVA_OPTS="-server -Xms1366m -Xmx2g -Xmn768m -Xss256k -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=256M -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/video-api/gc.log "

  7

  8 #这里可替换为你自己的执行程序，其他代码无需更改

  9 APP_NAME=video.jar

 10 APP_USER=tomcat

 11

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

 13 SHUTDOWN_WAIT=90

 14

 15 workdir=$(cd $(dirname $0); pwd)

 16

 17 #使用说明，用来提示输入参数

 18 usage() {

 19     echo "Usage: sh 执行脚本.sh [start|stop|restart|status]"

 20     exit 1

 21 }

 22

 23 #检查程序是否在运行

 24 is_exist(){

 25   pid=`ps -ef|grep $APP_NAME|grep -v grep|awk '{print $2}' `

 26   #如果不存在返回1，存在返回0

 27   if [ -z "${pid}" ]; then

 28    return 1

 29   else

 30     return 0

 31   fi

 32 }

 33

 34 # @args <beg> <end>

 35 # return random integer in [<beg>, <end>)

 36 function random_range() {

 37     local beg=$1

 38     local end=$2

 39     echo $((RANDOM % ($end - $beg) + $beg))

 40 }

 41

 42 #启动方法

 43 start(){

 44   is_exist

 45   if [ $? -eq "0" ]; then

 46     echo "${APP_NAME} is already running. pid=${pid} ."

 47   else

 48     #port=$(random_range 30000 60000)

 49     port=8004

 50     nohup java $JAVA_OPTS -jar $workdir/$APP_NAME --server.port=$port > /dev/null 2>&1 &

 51     is_exist

 52     if [ $? -eq "0" ]; then

 53        echo "${APP_NAME} started. pid=${pid}, port=$port."

 54     fi

 55   fi

 56 }

 57

 58 #停止方法

 59 stop(){

 60   is_exist

 61   if [ $? -eq "0" ]; then

 62     kill $pid

 63

 64

 65     let kwait=$SHUTDOWN_WAIT

 66     count=0;

 67     until [ `ps -p $pid | grep -c $pid` = '0' ] || [ $count -gt $kwait ]

 68     do

 69       echo -n -e "\n\e[00;31mwaiting for processes to exit\e[00m";

 70       sleep 1

 71       let count=$count+1;

 72     done

 73

 74     if [ $count -gt $kwait ]; then

 75       echo -n -e "\n\e[00;31mkilling processes didn't stop after $SHUTDOWN_WAIT seconds\e[00m"

 76       kill -9 $pid

 77     fi

 78

 79     echo "${APP_NAME} stoped."

 80   else

 81     echo "${APP_NAME} is not running"

 82   fi

 83 }

 84

 85 #输出运行状态

 86 status(){

 87   is_exist

 88   if [ $? -eq "0" ]; then

 89     echo "${APP_NAME} is running. Pid is ${pid}"

 90   else

 91     echo "${APP_NAME} is NOT running."

 92   fi

 93 }

 94

 95 #重启

 96 restart(){

 97   stop

 98   start

 99 }

100

101 #根据输入参数，选择执行对应方法，不输入则执行使用说明

102 case "$1" in

103   "start")

104     start

105     ;;

106   "stop")

107     stop

108     ;;

109   "status")

110     status

111     ;;

112   "restart")

113     restart

114     ;;

115   *)

116     usage

117     ;;

118 esac