shell启动脚本(java)

前言

    将项目部署到服务器后，为了方便启动，我们通常会编写一个shell脚本，一键执行启动服务，这样可以为我们节约大量运维成本。
       启动方式：sh  shell.sh start (sh命令，脚本名称，执行操作)
       
下面是实际案例分析

image.png

shell启动服务2.jpg


#!/bin/sh
BASE_PATH="$(cd `dirname $0`; pwd)"
source "${BASE_PATH}"/env.sh
JAR_PATH="${BASE_PATH}/../jars"

DIR_NAME="`dirname ${BASE_PATH}`"
PACKAGE_NAME="`basename ${DIR_NAME}`"
# 查找从右往左，第一个-，然后截取之前的字符串，比如 mizar-v4.4.0 取出 mizar
PROJECT=${PACKAGE_NAME}
RUN_JARs="`ls ${JAR_PATH}`"

action=$1
if [[ $? != 0 ]]; then
  echo '找不到 jars 目录'
  exit 1
fi

# 判断启动用户
user="`whoami`"

if [[ "${user}" != "${SHUXI_USER}" ]];then
  echo 当前用户为 ${user}，启动用户为 ${SHUXI_USER}，两者不一致。
  echo 请确认登录用户，或者更改配置文件。
  exit 1
fi

start()
{
  jar=$1
  app=${jar%-*}
  process="`ps -ef|grep java|grep ${app}|awk '{print $2}'`"
  conf_path="${SHUXI_CONF_PATH}/${PROJECT}/bootstrap.${APPLICATION_CONFIG_TYPE}"
  if [[ -n ${process} ]];then
    echo "程序 ${app} 已经启动，请先手动停止程序。"
    exit 1
  fi
  if [ ! -f ${conf_path} ];then
    echo -e "${conf_path} 不存在, 请检查启动脚本中的配置文件路径是否正确或检查文件是否存在.";
    exit 1
  fi
  echo 开始启动程序，${app}
  nohup java -Djava.security.egd=file:/dev/./urandom \
             ${SHUXI_JVM_OPTS} -jar \
             -Djasypt.encryptor.password=${JASYPT_PASSWORD}  ${JAR_PATH}/${jar} \
             --spring.config.location=${conf_path}\
             >/dev/null 2>&1 &
  sleep 2
  ps -ef|grep ${app}|grep -v grep
}

stop()
{
  jar=$1
  app=${jar%-*}
  # 去掉 provider
  app=${app%-*}
  echo "开始停止程序，${app}"
  process="`ps -ef|grep java|grep ${app}|awk '{print $2}'`"
  if [[ -n ${process} ]];then
    for p in ${process};do
      kill ${p}
    done
  fi
  sleep 1
  # 防止进程没有退出，强制删除
  process="`ps -ef|grep java|grep ${app}|awk '{print $2}'`"
  if [[ ! -n ${process} ]];then
    echo "${process} 进程还在，强制删除"
    for p in ${process};do
      kill ${p}
    done
  fi
  echo "完成停止程序，${app}"
}

restart()
{
  jar=$1
  stop ${jar}
  sleep 1
  start ${jar}

}


if [ ! $# == 1 ] ;then
    echo "参数是 start、stop、restart"
    exit;
fi

if [ "${action}" = "start" ] ;then
  jar_count=${#RUN_JARs[@]}
  if [[ ${jar_count} == 0 ]]; then
    echo "找不到 provider 的 jar 包"
    exit 1
  fi
  for jar in ${RUN_JARs}; do
    if [[ ${jar} == *data* ]]; then
      start ${jar}
    fi
  done

elif [ "${action}" = "stop" ] ;then
  for jar in ${RUN_JARs}; do
    if [[ ${jar} == *data* ]]; then
      stop ${jar}
    fi
  done

elif [ "${action}" = "restart" ] ;then
  for jar in ${RUN_JARs}; do
    if [[ ${jar} == *data* ]]; then
      restart ${jar}
    fi
  done

else
    echo "输入的参数是： ${action}, 而不是 [start, stop, restart]"
fi

#!/bin/sh
export SHUXI_CONF_PATH=${SHUXI_CONF_PATH:-/opt/workSpace/conf}
export SHUXI_DATA_PATH=${SHUXI_DATA_PATH:-/data01}
export SHUXI_JVM_OPTS=${SHUXI_JVM_OPTS:- -Xms256m -Xmx256m}
# 如果设置启动用户是 deploy，用其他用户启动会失败。
export SHUXI_USER=${SHUXI_USER:-deploy}
export APPLICATION_CONFIG_TYPE=${APPLICATION_CONFIG_TYPE:-yml}

最后编辑于：2020.08.28 15:10:38