what port tomcat7 use? how do i set AWS Security group?

I run a tomcat7 in ubuntu in aws. not use apache. and my site use default tomcat port 8080.

i don't want to open port except 8080 so i'm setting in aws security gruop. inbound 8080 TCP anywhere and outbound allTraffic.

but i try to rest call to http://my_aws_ip:8080/test.do but it dosen't work.

what should i open the port? doese tomcat7 use a some port?

thank you for reading this question.