Mac查看端口占用进程

解决

$ lsof -i:8081
COMMAND   PID       USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
java    67202 zhangyalin  183u  IPv6 0xd2de982e22f0a15b      0t0  TCP *:sunproxyadmin (LISTEN)
$ kill -9 67202

参考