vim /lib/systemd/system/nacos.service：
   
    [Unit]
    Description=nacos
    After=network.target

     [Service]
    Type=forking
    ExecStart=/usr/local/nacos/bin/startup.sh -m standalone
    ExecReload=/usr/local/nacos/bin/shutdown.sh
    ExecStop=/usr/local/nacos/bin/shutdown.sh
    PrivateTmp=true

    [Install]
    WantedBy=multi-user.target

vim /usr/local/nacos/bin/startup.sh：
        [ ! -e "$JAVA_HOME/bin/java" ] && JAVA_HOME=/usr/local/jdk1.8.0_191
        #[ ! -e "$JAVA_HOME/bin/java" ] && JAVA_HOME=/usr/java
        #[ ! -e "$JAVA_HOME/bin/java" ] && JAVA_HOME=/opt/taobao/java
        #[ ! -e "$JAVA_HOME/bin/java" ] && unset JAVA_HOME

cd  /usr/local/nacos/bin/
    systemctl daemon-reload #重新加载开机启动脚本
    systemctl start nacos.service  #开启nacos
    systemctl stop nacos.service  #关闭nacos脚本
    systemctl status nacos.service #查看状态
    systemctl enable nacos.service #设置开机启动