springclond 架构下 jar 启动脚本

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springclond 架构下 jar 启动脚本

? springcloud ? ? jar ? ? urandom ? ? 随机数 ? 488 0 0

swimming ? springcloud ? ? jar ? ? urandom ? ? 随机数 ?

> 近期收藏一个基于 springcloud 的 jar 启动脚本,脚本关键为随机数的获取

```bash
#!/usr/bin/env bash
#!/bin/sh
## java env

API_NAME=profit-task
JAR_NAME=$API_NAME\.jar
PID=$API_NAME\.pid

#使用说明，用来提示输入参数
usage() {
    echo "Usage: sh [start|stop|restart|status]"
    exit 1
}

#检查程序是否在运行
is_exist(){
  pid=`ps -ef|grep $JAR_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 1
  else
    return 0
  fi
}

#启动方法
start(){
  is_exist
  if [ $? -eq "0" ]; then
    echo ">>> ${JAR_NAME} is already running PID=${pid} <<<"
  else
    nohup /usr/local/java/bin/java -Xms1024m -Xmx1024m -Djava.security.egd=file:///dev/urandom -Drocketmq.client.logLevel=WARN -Ddruid.connectProperties='oracle.jdbc.ReadTimeout=10000;oracle.net.CONNECT_TIMEOUT=10000' -Ddruid.keepAlive=true -jar $JAR_NAME >/dev/null 2>&1 &
    echo $! > $PID
    #tail -f --lines=1 --pid=$! ../logs/$API_NAME.log.$(date '+%F').log|sed '/Started Application/Q'
    echo ">>> start $JAR_NAME successed PID=$! <<<"
   fi
  }

#停止方法
stop(){
  #is_exist
  pidf=$(cat $PID)
  #echo "$pidf"
  echo ">>> api PID = $pidf begin kill $pidf <<<"
  kill $pidf
  rm -rf $PID
  sleep 2
  is_exist
  if [ $? -eq "0" ]; then
    echo ">>> api 2 PID = $pid begin kill -9 $pid  <<<"
    kill -9  $pid
    sleep 2
    echo ">>> $JAR_NAME process stopped <<<"
  else
    echo ">>> ${JAR_NAME} is not running <<<"
  fi
}

#输出运行状态
status(){
  is_exist
  if [ $? -eq "0" ]; then
    echo ">>> ${JAR_NAME} is running PID is ${pid} <<<"
  else
    echo ">>> ${JAR_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
exit 0
```

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