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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 PrintServerMacInfo {
private static ListgetMacAddress4Linux() throws Exception {
ListmacAddressList = new ArrayList<>();
ListinetAddresses = getLocalAllInetAddress();
if (inetAddresses != null && inetAddresses.size() >0) {
for( InetAddress inetAddress:inetAddresses ) {
String macAddress = getMacByInetAddress(inetAddress);
macAddressList.add( macAddress );
}
}
return macAddressList;
}
private static ListgetMacAddress4Windows() throws Exception {
ListmacAddressList = new ArrayList<>();
ListinetAddresses = getLocalAllInetAddress();
if (inetAddresses != null && inetAddresses.size() >0) {
for( InetAddress inetAddress:inetAddresses ){
String macAddress = getMacByInetAddress(inetAddress);
macAddressList.add( macAddress );
}
}
return macAddressList;
}
private static ListgetLocalAllInetAddress() throws Exception {
Listresult = new ArrayList<>(4);
for (Enumeration networkInterfaces = NetworkInterface.getNetworkInterfaces(); networkInterfaces.hasMoreElements(); ) {
NetworkInterface iface = (NetworkInterface) networkInterfaces.nextElement();
for (Enumeration inetAddresses = iface.getInetAddresses(); inetAddresses.hasMoreElements(); ) {
InetAddress inetAddr = (InetAddress) inetAddresses.nextElement();
if (!inetAddr.isLoopbackAddress()
&& !inetAddr.isLinkLocalAddress() && !inetAddr.isMulticastAddress()) {
result.add(inetAddr);
}
}
}
return result;
}
private static String getMacByInetAddress(InetAddress inetAddr) {
try {
byte[] mac = NetworkInterface.getByInetAddress(inetAddr).getHardwareAddress();
StringBuffer stringBuffer = new StringBuffer();
for (int i = 0; i< mac.length; i++) {
if (i != 0) {
stringBuffer.append("-");
}
String temp = Integer.toHexString(mac[i] & 0xff);
if (temp.length() == 1) {
stringBuffer.append("0" + temp);
} else {
stringBuffer.append(temp);
}
}
return stringBuffer.toString().toUpperCase();
} catch (SocketException e) {
e.printStackTrace();
}
return null;
}
private static void printServerInfo() throws Exception {
System.out.println( "server info:" );
System.out.println( "macAddress list:" );
String osName = System.getProperty("os.name").toLowerCase();
ListmacAddressList = null;
if (osName.startsWith("windows")) {
macAddressList = getMacAddress4Windows();
} else if (osName.startsWith("linux")) {
macAddressList = getMacAddress4Linux();
}else{
macAddressList = getMacAddress4Linux();
}
if( macAddressList == null || macAddressList.size() == 0 ){
return;
}
for( String macAddress:macAddressList ){
System.out.println( " " + macAddress );
}
}
public static void main(String[] args) throws Exception {
printServerInfo();
}
}
javac PrintServerMacInfo.java
java PrintServerMacInfo
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