根据端口找到进程id

[root@localhost luban]# netstat -anp|grep "8999"
tcp6 0 0 :::8999 ::😗 LISTEN 93234/./luban #这里的93234就是占用8999端口进程的pid
[root@localhost luban]# ps -ef |grep luban
root 93234 91770 0 16:15 pts/1 00:00:00 ./luban
root 93491 91770 0 16:19 pts/1 00:00:00 grep --color=auto luban