java百分百获取到机器IP地址及MAC码

已测系统：

windows linux unix

排除127.0.0.1 和 0.0.0.0.1等非正常IP

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;public class IpUtil {private IpUtil(){}/*** 此方法描述的是：获得服务器的IP地址* @author:  zhangyang33@sinopharm.com* @version: 2014年9月5日 下午4:57:15*/public static String getLocalIP() {String sIP = "";InetAddress ip = null;try {boolean bFindIP = false;Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface.getNetworkInterfaces();while (netInterfaces.hasMoreElements()) {if (bFindIP) {break;}NetworkInterface ni = (NetworkInterface) netInterfaces.nextElement();Enumeration<InetAddress> ips = ni.getInetAddresses();while (ips.hasMoreElements()) {ip = (InetAddress) ips.nextElement();if (!ip.isLoopbackAddress() && ip.getHostAddress().matches("(\\d{1,3}\\.){3}\\d{1,3}")) {bFindIP = true;break;}}}} catch (Exception e) {OutUtil.error(IpUtil.class, e.getMessage());}if (null != ip) {sIP = ip.getHostAddress();}return sIP;}/*** 此方法描述的是：获得服务器的IP地址(多网卡)* @author:  zhangyang33@sinopharm.com* @version: 2014年9月5日 下午4:57:15*/public static List<String> getLocalIPS() {InetAddress ip = null;List<String> ipList = new ArrayList<String>();try {Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface.getNetworkInterfaces();while (netInterfaces.hasMoreElements()) {NetworkInterface ni = (NetworkInterface) netInterfaces.nextElement();Enumeration<InetAddress> ips = ni.getInetAddresses();while (ips.hasMoreElements()) {ip = (InetAddress) ips.nextElement();if (!ip.isLoopbackAddress() && ip.getHostAddress().matches("(\\d{1,3}\\.){3}\\d{1,3}")) {ipList.add(ip.getHostAddress());}}}} catch (Exception e) {OutUtil.error(IpUtil.class, e.getMessage());}return ipList;}/*** 此方法描述的是：获得服务器的MAC地址* @author:  zhangyang33@sinopharm.com* @version: 2014年9月5日 下午1:27:25*/public static String getMacId() {String macId = "";InetAddress ip = null;NetworkInterface ni = null;try {boolean bFindIP = false;Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface.getNetworkInterfaces();while (netInterfaces.hasMoreElements()) {if (bFindIP) {break;}ni = (NetworkInterface) netInterfaces.nextElement();// ----------特定情况，可以考虑用ni.getName判断// 遍历所有ipEnumeration<InetAddress> ips = ni.getInetAddresses();while (ips.hasMoreElements()) {ip = (InetAddress) ips.nextElement();if (!ip.isLoopbackAddress() // 非127.0.0.1&& ip.getHostAddress().matches("(\\d{1,3}\\.){3}\\d{1,3}")) {bFindIP = true;break;}}}} catch (Exception e) {OutUtil.error(IpUtil.class, e.getMessage());}if (null != ip) {try {macId = getMacFromBytes(ni.getHardwareAddress());} catch (SocketException e) {OutUtil.error(IpUtil.class, e.getMessage());}}return macId;}/*** 此方法描述的是：获得服务器的MAC地址(多网卡)* @author:  zhangyang33@sinopharm.com* @version: 2014年9月5日 下午1:27:25*/public static List<String> getMacIds() {InetAddress ip = null;NetworkInterface ni = null;List<String> macList = new ArrayList<String>();try {Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface.getNetworkInterfaces();while (netInterfaces.hasMoreElements()) {ni = (NetworkInterface) netInterfaces.nextElement();// ----------特定情况，可以考虑用ni.getName判断// 遍历所有ipEnumeration<InetAddress> ips = ni.getInetAddresses();while (ips.hasMoreElements()) {ip = (InetAddress) ips.nextElement();if (!ip.isLoopbackAddress() // 非127.0.0.1&& ip.getHostAddress().matches("(\\d{1,3}\\.){3}\\d{1,3}")) {macList.add(getMacFromBytes(ni.getHardwareAddress()));}}}} catch (Exception e) {OutUtil.error(IpUtil.class, e.getMessage());}return macList;}private static String getMacFromBytes(byte[] bytes) {StringBuffer mac = new StringBuffer();byte currentByte;boolean first = false;for (byte b : bytes) {if (first) {mac.append("-");}currentByte = (byte) ((b & 240) >> 4);mac.append(Integer.toHexString(currentByte));currentByte = (byte) (b & 15);mac.append(Integer.toHexString(currentByte));first = true;}return mac.toString().toUpperCase();}}

来自：http://jdkleo.iteye.com/blog/2113782博客