通过shell脚本对Java服务启停进行控制。支持单个服务和多个服务的 start、stop、status、restart。支持自定义启动命令。（不限于Java服务，适用于各类通过命令行启动的服务）

脚本名称为 runjar.sh , 底部提供源码。通过三部分进行说明：操作说明、维护自定义服务列表、脚本源码

操作说明

• 查看可执行的命令 ./runjar.sh

  

• 启动单个服务 ./runjar.sh start 服务名（已经处于运行状态的服务不会重复运行并提示进程号）

  

  

• 查看单个服务的运行状态 ./runjar.sh status 服务名

  

• 停止单个服务 ./runjar.sh stop 服务名

  

• 批量启动服务 ./runjar.sh start

  

• 批量停止服务 ./runjar.sh stop

  

• 批量查看各个服务的状态 ./runjar.sh status

  

维护自定义服务列表

1. 新建 runjar.txt 文件放到 runjar.sh 脚本的同级目录。

2. 自定义服务的启动命令 启动命令 === 自定义服务名称 ，每个服务占据一行，启动命令和自定义服务名之间用 === 隔开，所有的启停操作通过自定义的服务名称进行。例如：

   /home/jdk1.8/bin/java -jar /home/myjar/jarzip.jar === jarzip
   /home/jdk1.8/bin/java -jar /home/myjar/jarzip2.jar === myzip
   

脚本源码

#!/bin/bash
function getcmdbyline(){
    command=`echo $1 | awk 'BEGIN {FS="==="} {print $1}' | tr -d '\r\n' | tr -d '\n'`
    echo $command
}
function getappid(){
    id=`echo $1 | awk 'BEGIN {FS="==="} {print $2}' | tr -d '\r\n' | tr -d '\n'` # 防止使用 CRLF文件出现的问题
    echo $(echo $id)
}
CONFIG_FILE="./runjar.txt" # 可自定义配置文件名称
function getcmdbyfile(){ 
    cat $CONFIG_FILE | while read line || [[ -n ${line} ]] 
    do
        command=`getcmdbyline "$line"`
        appid=`getappid "$line"`
        if [ $appid == $1 ]
        then
            echo $command
            break
        fi
    done
}


function isrunning(){
    cmd=`getcmdbyfile $1`
    if [ -n "$cmd" ]
    then
        num=`ps aux|grep "$cmd" | wc -l`
        if [ $num -gt 1 ]
        then 
            ps -ef | grep "$cmd" | grep -v grep | grep -v "$0" | awk '{print $2}' 
        fi
    fi
}
function operservice(){
    if [ $1 == "start" ]
    then 
        echo "start $2..."
        cmd=`getcmdbyfile $2`
        if [ -n "$cmd" ]
        then
            isrun=`isrunning $2`
            if [ -n "$isrun" ]
            then
                echo "app is already running, don't start again , service id is $isrun"
            else
                nohup ${cmd} 2>&1 & > null
                echo "done"
            fi
        else
            echo "not found cmd"
        fi
    fi

    if [ $1 == "stop" ]
    then 
        echo "stop $2..."
        isrun=`isrunning $2`
        if [ -n "$isrun" ]
        then
            kill -9 $isrun
            echo "kill done"
        else
            echo "app not run, not need to kill"
        fi
        
    fi
  
    if [ $1 == "restart" ]
    then 
        echo "restart $2"
        cmd=`getcmdbyfile $2`
        if [ -n "$cmd" ]
        then
            isrun=`isrunning $2`
            if [ -n "$isrun" ]
            then
                kill -9 $isrun
                echo "stop done"
            fi
            nohup ${cmd} 2>&1 &
            echo "start done"
        else
            echo "not found cmd, please config."
        fi

    fi

    if [ $1 == "status" ]
    then 
        echo "status $2"
        isrun=`isrunning $2`
        if [ -n "$isrun" ]
        then
           echo "app is running , service id is $isrun"
        else
            echo "app not running."
        fi
    fi
}

if [ ! -n "$1" ]
then 
    echo "Usage: ./runjar { start | stop | restart | status }"
else
    if [ ! -n "$2" ]
    then
        cat $CONFIG_FILE | while read line || [[ -n ${line} ]]
        do
           
            # command=`getcmdbyline "$line"` # 将 $line 整体作为一个参数
            appid=`getappid "$line"`
            echo "####### $appid #######"
            operservice $1 $appid
            echo "done"
        done
    else
        operservice $1 $2
    fi
fi