1.Tomcat默认端口

<Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />

<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />

<Server port="8005" shutdown="SHUTDOWN">

2.MySQL数据库默认端口

[client]
port=3306

3.Oracle数据库默认端口

1521

4.Nacos默认端口

8848