View port number cmd command

To view the occupancy of a specified port
c:\>netstat-aon|findstr "9050"

Protocol local address external address state PID

TCP 127.0.0.1:9050 0.0.0.0:0 LISTENING 2016

P: See, Port is occupied by process number 2016 process, continue to execute the following command: (You can also go to the task Manager to see the PID corresponding process)

See links for detailed explanations

http://www.iteye.com/topic/1117270

General Tomcat boot ports are occupied to first close the Java Program End Task in Task Manager

View port number cmd command