win+r enter the command window:
View all ports: netstat -ano
View and filter a certain port, such as 9080: netstat -ano|findstr "9080"
The process number is: 192792, open the task manager, find the process option, and find the end of the process number 192792 (if there is no PID column in the process option, you can select it in the "process" tab in the menu "view"" 》Select column.. Check PID.)