[置顶] mac下查询占用端口的进程，并且杀死它

1.sudo lsof -i :8080

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
com.apple 381 jianan 9u IPv4 0xfebc24bb4ae582b 0t0 TCP localhost:51720->localhost:http-alt (ESTABLISHED)
com.apple 381 jianan 20u IPv4 0xfebc24bc96d6503 0t0 TCP localhost:51721->localhost:http-alt (ESTABLISHED)
com.apple 381 jianan 24u IPv4 0xfebc24bb4ae582b 0t0 TCP localhost:51720->localhost:http-alt (ESTABLISHED)
com.apple 381 jianan 26u IPv4 0xfebc24bc96d6503 0t0 TCP localhost:51721->localhost:http-alt (ESTABLISHED)
java 2581 jianan 44u IPv6 0xfebc24bb5b5e673 0t0 TCP *:http-alt (LISTEN)
java 2581 jianan 341u IPv6 0xfebc24bb46a9673 0t0 TCP localhost:http-alt->localhost:51721 (ESTABLISHED)
java 2581 jianan 342u IPv6 0xfebc24bb46a9113 0t0 TCP localhost:http-alt->localhost:51720 (ESTABLISHED)

2.kill 2581