一、JVM参数配置

• JDK11以上（包含JDK11）：

JVM_OPTS="-Dname=$AppName  -Duser.timezone=Asia/Shanghai -Xms512m -Xmx512m -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc*:./logs/gc.log:time:filecount=10:filesize=10m -XX:NewRatio=1 -XX:SurvivorRatio=30 -XX:+UseParallelGC -XX:+UseParallelOldGC"

• JDK11以下：

JVM_OPTS="-Dname=$AppName  -Duser.timezone=Asia/Shanghai -Xms128M -Xmx256M -XX:PermSize=128M -XX:MaxPermSize=256M -XX:+HeapDumpOnOutOfMemoryError -XX:+PrintGCDateStamps  -XX:+PrintGCDetails -XX:NewRatio=1 -XX:SurvivorRatio=30 -XX:+UseParallelGC -XX:+UseParallelOldGC"

二、创建 run.sh 脚本

• 需自行创建文本文档，复制以下代码，并根据实际情况调整AppName、jvm参数，命名为run.sh
• 使用时，需先赋予权限 chmod 777 run.sh

#!/bin/sh
#AppName 需根据实际情况设置
AppName=xxxxx.jar

# JVM参数
JVM_OPTS="-Dname=$AppName  -Duser.timezone=Asia/Shanghai -Xms512m -Xmx512m -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Xlog:gc*:./logs/gc.log:time:filecount=10:filesize=10m -XX:NewRatio=1 -XX:SurvivorRatio=30 -XX:+UseParallelGC -XX:+UseParallelOldGC"

APP_HOME=`pwd`
LOG_PATH=$APP_HOME/logs/$AppName.log

if [ "$1" = "" ];
then
    echo -e "\033[0;31m 未输入操作名 \033[0m  \033[0;34m {start|stop|restart|status} \033[0m"
    exit 1
fi

if [ "$AppName" = "" ];
then
    echo -e "\033[0;31m 未输入应用名 \033[0m"
    exit 1
fi

function start()
{
    PID=`ps -ef |grep java|grep $AppName|grep -v grep|awk '{print $2}'`

    if [ x"$PID" != x"" ]; then
        echo "$AppName is running..."
    else
        nohup java $JVM_OPTS -jar $AppName > /dev/null 2>&1 &
        echo "Start $AppName success..."
    fi
}

function stop()
{
    echo "Stop $AppName"

    PID=""
    query(){
        PID=`ps -ef |grep java|grep $AppName|grep -v grep|awk '{print $2}'`
    }

    query
    if [ x"$PID" != x"" ]; then
        kill -TERM $PID
        echo "$AppName (pid:$PID) exiting..."
        while [ x"$PID" != x"" ]
        do
            sleep 1
            query
        done
        echo "$AppName exited."
    else
        echo "$AppName already stopped."
    fi
}

function restart()
{
    stop
    sleep 2
    start
}

function status()
{
    PID=`ps -ef |grep java|grep $AppName|grep -v grep|wc -l`
    if [ $PID != 0 ];then
        echo "$AppName is running..."
    else
        echo "$AppName is not running..."
    fi
}

case $1 in
    start)
    start;;
    stop)
    stop;;
    restart)
    restart;;
    status)
    status;;
    *)

esac

三、使用方式：

./run.sh start 启动 
./run.sh stop 停止 
./run.sh restart 重启 
./run.sh status 状态