cm-cloud/cloud-security/src/main/java/com/cm/security/utils/AddressUtil.java

package com.cm.security.utils;

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;

public class AddressUtil {

	/**
	 * 获取MAC地址, 可能会为空
	 * 
	 * @return
	 * @throws Exception
	 */
	@Deprecated
	public static final String getMacAddress() throws Exception {
		InetAddress inetAddress = InetAddress.getLocalHost();
		byte[] mac = NetworkInterface.getByInetAddress(inetAddress).getHardwareAddress();
		StringBuilder macAddress = new StringBuilder();
		for (byte macByte : mac) {
			if (macAddress.length() > 0) {
				macAddress.append("-");
			}
			int macInt = macByte & 0xff;
			String str = Integer.toHexString(macInt);
			macAddress.append(str.length() == 1 ? 0 + str : str);
		}
		return macAddress.toString().toUpperCase();
	}

	/**
	 * 此方法描述的是：获得服务器的IP地址
	 */
	public static String getLocalIP() throws Exception {
		String sIP = "";
		InetAddress ip = null;
		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;
				}
			}
		}
		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)
	 */
	public static List<String> getLocalIPS() throws Exception {
		InetAddress ip = null;
		List<String> ipList = new ArrayList<String>();
		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());
				}
			}
		}
		return ipList;
	}

	/**
	 * 获得服务器的MAC地址
	 */
	public static String getMacId() throws Exception {
		String macId = "";
		InetAddress ip = null;
		NetworkInterface ni = null;
		boolean bFindIP = false;
		Enumeration<NetworkInterface> netInterfaces = (Enumeration<NetworkInterface>) NetworkInterface
				.getNetworkInterfaces();
		while (netInterfaces.hasMoreElements()) {
			if (bFindIP) {
				break;
			}
			ni = (NetworkInterface) netInterfaces
					.nextElement();
			Enumeration<InetAddress> ips = ni.getInetAddresses();
			while (ips.hasMoreElements()) {
				ip = (InetAddress) ips.nextElement();
				// 非127.0.0.1
				if (!ip.isLoopbackAddress()
						&& ip.getHostAddress().matches(
						"(\\d{1,3}\\.){3}\\d{1,3}")) {
					bFindIP = true;
					break;
				}
			}
		}
		if (null != ip) {
			macId = getMacFromBytes(ni.getHardwareAddress());
		}
		return macId;
	}

	/**
	 * 获得服务器的MAC地址(多网卡)
	 */
	public static List<String> getMacIds() throws Exception {
		InetAddress ip = null;
		NetworkInterface ni = null;
		List<String> macList = new ArrayList<String>();
		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ip
			Enumeration<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()));
				}
			}
		}
		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();
	}

}