监听网络地址

import java.io.*;import java.net.*;import java.util.*;import static java.lang.System.out;public class ListNets {    public static void main(String args[]) throws SocketException {        Enumeration nets = NetworkInterface.getNetworkInterfaces();        for (NetworkInterface netint : Collections.list(nets))            displayInterfaceInformation(netint);    }    static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {        out.printf("Display name: %s/n", netint.getDisplayName());        out.printf("Name: %s/n", netint.getName());        Enumeration inetAddresses = netint.getInetAddresses();        for (InetAddress inetAddress : Collections.list(inetAddresses)) {            out.printf("InetAddress: %s/n", inetAddress);        }        out.printf("/n");     }}  
 
执行结果：
Display name: bge0Name: bge0InetAddress: /fe80:0:0:0:203:baff:fef2:e99d%2InetAddress: /121.153.225.59Display name: lo0Name: lo0InetAddress: /0:0:0:0:0:0:0:1%1InetAddress: /127.0.0.1