读取本地外网IP地址

读取本地外网IP地址.

根据启动并运行的网卡名称，找到本机实际的IP地址(已知当前运行的无线网卡名包含某一个字符）

import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;


public class URL{
    public static void main(String[] args) throws Exception {
        Enumeration<NetworkInterface> en = NetworkInterface
                .getNetworkInterfaces();
        while (en.hasMoreElements()) {
            NetworkInterface ni = en.nextElement();
            printParameter(ni);

        }
    }

    public static void printParameter(NetworkInterface ni)
            throws SocketException {
        //if (null != ni.getDisplayName()&& ni.getDisplayName().contains("Wireless") && ni.isUp()) {
            System.out.println(" Name = " + ni.getName());
            System.out.println(" Display Name = " + ni.getDisplayName());
            System.out.println(" Is up = " + ni.isUp());
            System.out.println(" Support multicast = " + ni.supportsMulticast());
            System.out.println(" Is loopback = " + ni.isLoopback());
            System.out.println(" Is virtual = " + ni.isVirtual());
            System.out.println(" Is point to point = " + ni.isPointToPoint());
            System.out.println(" Hardware address = " + ni.getHardwareAddress());
            System.out.println(" MTU = " + ni.getMTU());
            System.out.println("\nList of Interface Addresses:");
            List<InterfaceAddress> list = ni.getInterfaceAddresses();
            Iterator<InterfaceAddress> it = list.iterator();

            while (it.hasNext()) {
                InterfaceAddress ia = it.next();
                if(null!=ia.getBroadcast()){
                    System.out.println(" 联网网卡IPv4地址： " + ia.getAddress().getHostAddress());
                }
            }

            System.out .println("**************************************************");
       // }
    }
}

装载：

http://bbs.csdn.net/topics/390904895