java获取连接到本机网络上的所有主机ip地址(本机必须当作交换机)

private static void getIpAddressByNetworkInterface() {

try {

Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();

                

NetworkInterface net;

InetAddress inetAddress;

while (nets.hasMoreElements()) {

net = nets.nextElement();

Enumeration<InetAddress> address = net.getInetAddresses();

while (address.hasMoreElements()) {

inetAddress = address.nextElement();

if (inetAddress!=null&&inetAddress instanceof Inet4Address)

System.out.println(inetAddress.getHostAddress());

}

}

} catch (SocketException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

本想用这个获取本机所连网络上的所有主机ip地址，结果不行，必须要本机开wifi，其他主机连到这个wifi上才行。考虑用广播实现获取所有主机ip地址。