小辛博客

Java获取本机IP地址

网上比较流行的一种方法：

InetAddress addr = InetAddress.getLocalHost();
ip=addr.getHostAddress(); //IP
address=addr.getHostName(); //Name

不过，在我的Linux上不好用啊，仅仅是可以获得 127.0.0.1 这个环回地址，实在是不怎么样。貌似在windows下好用(没测试过)。
最后，看了这位仁兄的帖子,用的是这个：

import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

public class LocalIP {

	private static Enumeration<NetworkInterface> allNetInterfaces = null;

	public static void getAllLocalIP() {

		try {
			allNetInterfaces = NetworkInterface.getNetworkInterfaces();
		} catch (SocketException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		InetAddress ip = null;
		while (allNetInterfaces.hasMoreElements()) {
			NetworkInterface netInterface = (NetworkInterface) allNetInterfaces
					.nextElement();
			System.out.println(netInterface.getName());
			Enumeration<InetAddress> addresses = netInterface
					.getInetAddresses();
			while (addresses.hasMoreElements()) {
				ip = (InetAddress) addresses.nextElement();
				if (ip != null && ip instanceof Inet4Address) {
					System.out.println("本机的IP = " + ip.getHostAddress());
				}
			}
		}
	}

}