创建一个管理Java服务的shell脚本

2024-11-19

创建脚本 run.sh:

#!/bin/bash
APP_NAME=/opt/apps/app.jar

DEFAULT_JAVA_OPTS="-server \
    -Xms1024m \
    -Xmx1024m \
    -Dfile.encoding=utf-8 \
    -Duser.timezone=GMT+08 \
    -Dspring.profiles.active=test"

JAVA_OPTS=${JAVA_OPTS:-$DEFAULT_JAVA_OPTS}

usage() {
    echo "Usage: sh run.sh [start|stop|restart|status]"
    exit 1
}

is_exist(){
  pid=$(ps -ef|grep $APP_NAME|grep -v grep|awk '{print $2}')
  if [ -z "${pid}" ]; then
   return 1
  else
    return 0
  fi
}

start(){
  is_exist
  if [ $? -eq "0" ]; then
    echo "${APP_NAME} is already running. pid=${pid} ."
  else
    java $JAVA_OPTS -jar ./$APP_NAME
  fi
}

stop(){
  is_exist
  if [ $? -eq "0" ]; then
    kill -9 $pid
  else
    echo "${APP_NAME} is not running"
  fi
}

status(){
  is_exist
  if [ $? -eq "0" ]; then
    echo "${APP_NAME} is running. Pid is ${pid}"
  else
    echo "${APP_NAME} is NOT running."
  fi
}

restart(){
  stop
  start
}

case "$1" in
  "start")
    start
    ;;
  "stop")
    stop
    ;;
  "status")
    status
    ;;
  "restart")
    restart
    ;;
  *)
    usage
    ;;
esac

赋予执行权限
chmod +x run.sh
执行脚本
sh run.sh start

技术积木

创建一个管理Java服务的shell脚本