用java获得MAC地址
package com.etong.bms;import java.io.BufferedInputStream;import java.io.IOException;import java.io.InputStream;import java.net.InetAddress;import java.util.StringTokenizer;import com.sun.org.apache.xerces.internal.impl.xpath.regex.ParseException;public final class GetMacAddr {private final static String getMacAddress() throws IOException {String os = System.getProperty("os.name");try {if (os.startsWith("Windows")) {return windowsParseMacAddress(windowsRunIpConfigCommand());} else if (os.startsWith("Linux")) {return linuxParseMacAddress(linuxRunIfConfigCommand());} else {throw new IOException("unknown operating system: " + os);}} catch (ParseException ex) {ex.printStackTrace();throw new IOException(ex.getMessage());}}/* * Linux stuff */private final static String linuxParseMacAddress(String ipConfigResponse)throws ParseException {String localHost = null;try {localHost = InetAddress.getLocalHost().getHostAddress();} catch (java.net.UnknownHostException ex) {ex.printStackTrace();throw new ParseException(ex.getMessage(), 0);}StringTokenizer tokenizer = new StringTokenizer(ipConfigResponse, "\n");String lastMacAddress = null;while (tokenizer.hasMoreTokens()) {String line = tokenizer.nextToken().trim();boolean containsLocalHost = line.indexOf(localHost) >= 0;// see if line contains IP addressif (containsLocalHost && lastMacAddress != null) {return lastMacAddress;}// see if line contains MAC addressint macAddressPosition = line.indexOf("HWaddr");if (macAddressPosition <= 0)continue;String macAddressCandidate = line.substring(macAddressPosition + 6).trim();if (linuxIsMacAddress(macAddressCandidate)) {lastMacAddress = macAddressCandidate;continue;}}ParseException ex = new ParseException("cannot read MAC address for "+ localHost + " from [" + ipConfigResponse + "]", 0);ex.printStackTrace();throw ex;}private final static boolean linuxIsMacAddress(String macAddressCandidate) {// TODO: use a smart regular expressionif (macAddressCandidate.length() != 17)return false;return true;}private final static String linuxRunIfConfigCommand() throws IOException {Process p = Runtime.getRuntime().exec("ifconfig");InputStream stdoutStream = new BufferedInputStream(p.getInputStream());StringBuffer buffer = new StringBuffer();for (;;) {int c = stdoutStream.read();if (c == -1)break;buffer.append((char) c);}String outputText = buffer.toString();stdoutStream.close();return outputText;}/* * Windows stuff */private final static String windowsParseMacAddress(String ipConfigResponse)throws ParseException {String localHost = null;try {localHost = InetAddress.getLocalHost().getHostAddress();} catch (java.net.UnknownHostException ex) {ex.printStackTrace();throw new ParseException(ex.getMessage(), 0);}StringTokenizer tokenizer = new StringTokenizer(ipConfigResponse, "\n");String lastMacAddress = null;while (tokenizer.hasMoreTokens()) {String line = tokenizer.nextToken().trim();// see if line contains IP addressif (line.endsWith(localHost) && lastMacAddress != null) {return lastMacAddress;}// see if line contains MAC addressint macAddressPosition = line.indexOf(":");if (macAddressPosition <= 0)continue;String macAddressCandidate = line.substring(macAddressPosition + 1).trim();if (windowsIsMacAddress(macAddressCandidate)) {lastMacAddress = macAddressCandidate;continue;}}ParseException ex = new ParseException("cannot read MAC address from ["+ ipConfigResponse + "]", 0);ex.printStackTrace();throw ex;}private final static boolean windowsIsMacAddress(String macAddressCandidate) {// TODO: use a smart regular expressionif (macAddressCandidate.length() != 17)return false;return true;}private final static String windowsRunIpConfigCommand() throws IOException {Process p = Runtime.getRuntime().exec("ipconfig /all");InputStream stdoutStream = new BufferedInputStream(p.getInputStream());StringBuffer buffer = new StringBuffer();for (;;) {int c = stdoutStream.read();if (c == -1)break;buffer.append((char) c);}String outputText = buffer.toString();stdoutStream.close();return outputText;}/* * Main */public final static void main(String[] args) {try {System.out.println("Network infos");System.out.println(" Operating System: "+ System.getProperty("os.name"));System.out.println(" IP/Localhost: "+ InetAddress.getLocalHost().getHostAddress());System.out.println(" MAC Address: " + getMacAddress());} catch (Throwable t) {t.printStackTrace();}}}
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