centos服务器重启后，jar包自启动

第一种方法：

systemctl服务自启动

在/usr/lib/systemd/system目录下，创建service：start_jar.servie

[Unit]
Description=Your Java Application as a Service
After=network.target
 
[Service]
User=root
Type=simple
ExecStart=/usr/bin/java -jar /data/*.jar
Restart=on-failure
 
[Install]
WantedBy=multi-user.target

启动 

配置生效：systemctl daemon-reload

启动：systemctl start start_jar.service

启停止：systemctl stop start_jar.service

自启动：systemctl enable start_jar.service

第二种方法：

编写脚本auto_start.sh加载到rc.local启动服务中

如下：自动生成脚本:auto_create.sh

#!/bin/bash
ScriptPath=/data/auto_start.sh
ScriptPathb=/data/auto_start_bak.sh
if [ -z "$1" ]; then
    echo "jar包的路径不能为空！"
	exit 1 
	
fi
if [ -f "$ScriptPath" ]; then
    echo "文件存在,需要删除！"
    cp $ScriptPath $ScriptPathb
    touch $ScriptPath	
else
    touch $ScriptPath
	echo "空脚本创建成功"

    echo "#!/bin/bash" >> $ScriptPath
	

    echo "nohup java -jar  $1 >/dev/null 2>&1 &" >> $ScriptPath
	
	echo "脚本初始化成功"

    chmod +x /data/auto_start.sh

    #vim /etc/rc.local 打开添加在最后一行。/data/auto_start.sh
	#备份：rc.local
	cp /etc/rc.local /etc/rc.local_bak
	#加载启动脚本到rc.local
    echo "$ScriptPath" >> /etc/rc.local

    chmod +x  /etc/rc.local
	
	echo "脚本添加到自启动中"

fi

执行脚本 

sh auto_create.sh jar包路径