报错:
Several ports (8005, 8080, 8009) required by Tomcat v9.0 Server at localhost are already in use. The server may already be running in another process, or a system process may be using the port. To start this server you will need to stop the other process or change the port number(s).
如图:
解决办法:
找到任务管理器,点击详细信息, 禁用javax.exe进程即可。