java获得本机的mac

暴3421

　　import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
　　
public class Test1 {
　　/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
　　System.out.println("取得网卡的 Mac 地址" + getMACAddress());
}

public static String getWindowsMACAddress() {
String address = "";
try {
ProcessBuilder pb = new ProcessBuilder("ipconfig", "/all");
Process p = pb.start();
BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line;
while ((line = br.readLine()) != null) {
if (line.indexOf("Physical Address") != -1) {
int index = line.indexOf(":");
address = line.substring(index + 1);
break;
}
}
br.close();
return address.trim();
} catch (IOException e) {
}
return address;
}
public static String getLinuxMACAddress() {
String address = "";
try {
ProcessBuilder pb = new ProcessBuilder("ipconfig", "-a");
Process p = pb.start();
BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line;
while ((line = br.readLine()) != null) {
System.out.println(line);
if (line.indexOf("Link encap:Ethernet HWaddr") != -1) {
int index = line.indexOf("HWaddr");
address = line.substring(index + 7);
break;
}
}
br.close();
return address.trim();
} catch (IOException e) {
}
return address;
}
public static String getMACAddress() {
String address = "";
String os = System.getProperty("os.name");
// System.out.println(os);
if (os != null && os.startsWith("Windows")) {
address = getWindowsMACAddress();
address = address.replaceAll("-", ":");
} else {
address = getLinuxMACAddress();
}
return address;
}

}
　　
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