There is a conf folder under the TOCAT installation directory. Open the server.xml file inside, find port 8080, and modify OK.

Conf folder, and open the server.xml file in it.

find

& lt connector port ="80 "protocol ="HTTP/ 1. 1"

connectionTimeout="20000 "

Redirect port ="8443 "

useBodyEncodingForURI = " true "/& gt；

Changed the value of the port.