一.用lsof命令(如果没有，请用yum install安装)
# lsof -i :8080 |grep "(LISTEN)"
java    25768 root  108u  IPv6 1374286      0t0  TCP *:webcache (LISTEN)

二.用netstat命令:
[root@alpha-task-17-61 ~]# netstat -lnp|awk 'BEGIN{prt=":8080$"}{if ($4 ~ prt) print $0}'
tcp        0      0 :::8080                     :::*                        LISTEN      25768/java     

三.用ss命令:
[root@alpha-task-17-61 ~]# ss -lnp|grep 8080
LISTEN     0      50                       :::8080                    :::*      users:(("java",25768,108))