JAVA获得网卡MAC地址

package test;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.text.ParseException;
import java.util.StringTokenizer;

public final class NetworkUtils {

private final static int MACADDR_LENGTH = 17;
private final static String WIN_OSNAME = "Windows";
private final static String LINUX_OSNAME = "Linux";
private final static String OSX_OSNAME = "Mac OS X";
private final static String MACADDR_REG_EXP = "^[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}$";
private final static String WIN_MACADDR_EXEC = "ipconfig /all";
private final static String LINUX_MACADDR_EXEC = "ifconfig";
private final static String OSX_MACADDR_EXEC = "ifconfig";

public final static String getMacAddress() throws IOException{
String os = System.getProperty("os.name");
try{
if(os.startsWith(WIN_OSNAME)){
return windowsParseMacAddress(windowsIpConfigCommand());
}else if(os.startsWith(LINUX_OSNAME)){
return linuxParseMacAddress(linuxRunIfConfigCommand());
}else if(os.startsWith(OSX_OSNAME)) {
return osxParseMacAddress(osxRunIfConfigCommand());
}else{
throw new IOException("OS not supported : " + os);
}
}catch(Exception e){
e.printStackTrace();
throw new IOException(e.getMessage());
}
}

/**
* OSX stuff
*/
private final static String osxParseMacAddress(String ipConfigOutput) 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(ipConfigOutput, "\n");
String lastMacAddress = null;
while(tokenizer.hasMoreTokens()) {
String line = tokenizer.nextToken().trim();
boolean containsLocalHost = line.indexOf(localHost) >= 0;
//see if line contains IP address
if(containsLocalHost && lastMacAddress != null){
return lastMacAddress;
}
//see if line contains MAC address
int macAddressPosition = line.indexOf("ether");
if(macAddressPosition != 0) {
continue;
}
String macAddressCandidate = line.substring(macAddressPosition + 6).trim();
if(osxIsMacAddress(macAddressCandidate)) {
lastMacAddress = macAddressCandidate;
continue;
}
}
ParseException ex = new ParseException
("cannot read MAC address for " + localHost + " from [" + ipConfigOutput + "]", 0);
ex.printStackTrace();
throw ex;

}

private final static boolean osxIsMacAddress(String macAddressCandidate){
if(macAddressCandidate.length() != MACADDR_LENGTH){
return false;
}
if(!macAddressCandidate.matches(MACADDR_REG_EXP)){
return false;
}
return true;
}

private final static String osxRunIfConfigCommand() throws IOException{
Process p = Runtime.getRuntime().exec(OSX_MACADDR_EXEC);
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;
}

/**
* Linux stuff
*/
private final static String linuxParseMacAddress(String ipConfigOutput) throws ParseException{
String localHost = null;
try {
localHost = InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
throw new ParseException(e.getMessage(),0);
}
StringTokenizer tokenizer = new StringTokenizer(ipConfigOutput,"\n");
String lastMacAddress = null;
while(tokenizer.hasMoreTokens()){
String line = tokenizer.nextToken().trim();
boolean containsLocalHost = line.indexOf(localHost) >= 0;
//see if line contains IP address
if(containsLocalHost && lastMacAddress != null){
return lastMacAddress;
}
//see if line contains MAC address
int 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 [" + ipConfigOutput + "]",0);
ex.printStackTrace();
throw ex;
}

private final static boolean linuxIsMacAddress(String macAddressCandidate){
if(macAddressCandidate.length() != MACADDR_LENGTH){
return false;
}
if(!macAddressCandidate.matches(MACADDR_REG_EXP)){
return false;
}
return true;
}

private final static String linuxRunIfConfigCommand() throws IOException{
Process p = Runtime.getRuntime().exec(LINUX_MACADDR_EXEC);
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 ipConfigOutput) throws ParseException{
String localHost = null;
try {
localHost = InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
throw new ParseException(e.getMessage(),0);
}
StringTokenizer tokenizer = new StringTokenizer(ipConfigOutput,"\n");
String lastMacAddress = null;
while(tokenizer.hasMoreTokens()){
String line = tokenizer.nextToken().trim();
//see if line contains IP address
if(line.endsWith(localHost) && lastMacAddress != null){
return lastMacAddress;
}
//see if line contains MAC address
int 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 [" + ipConfigOutput + "]",0);
ex.printStackTrace();
throw ex;
}

private final static boolean windowsIsMacAddress(String macAddressCandidate){
if(macAddressCandidate.length() != MACADDR_LENGTH){
return false;
}
if(!macAddressCandidate.matches(MACADDR_REG_EXP)){
return false;
}
return true;
}

private final static String windowsIpConfigCommand() throws IOException {
Process p = Runtime.getRuntime().exec(WIN_MACADDR_EXEC);
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;
}

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try{

System.out.println(" MAC ADDRESS");
System.out.println(" OS :" + System.getProperty("os.name"));
System.out.println(" IP/Localhost : " + InetAddress.getLocalHost().getHostAddress());
System.out.println(" MAC Address : " + getMacAddress());

}catch(Throwable t){
t.printStackTrace();
}
}



}