java jsp 获取电脑MAC地址

来源：互联网发布：中国防火墙知乎编辑：程序博客网时间：2024/05/17 01:18

package filters;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;

public class GetMACAddress {
   public String getMACAddress(String ipAddress) {
       String str = "", strMAC = "", macAddress = "";
       try {
           Process pp = Runtime.getRuntime().exec("nbtstat -a " + ipAddress);
           InputStreamReader ir = new InputStreamReader(pp.getInputStream());
           LineNumberReader input = new LineNumberReader(ir);
           for (int i = 1; i < 100; i++) {
               str = input.readLine();
               if (str != null) {
                   if (str.indexOf("MAC Address") > 1) {
                       strMAC = str.substring(str.indexOf("MAC Address") + 14,
                               str.length());
                       break;
                   }
               }
           }
       } catch (IOException ex) {
           return "Can't Get MAC Address!";
       }
       //
       if (strMAC.length() < 17) {
           return "Error!";
       }

       macAddress = strMAC.substring(0, 2) + ":" + strMAC.substring(3, 5)
               + ":" + strMAC.substring(6, 8) + ":" + strMAC.substring(9, 11)
               + ":" + strMAC.substring(12, 14) + ":"
               + strMAC.substring(15, 17);
       //
       return macAddress;
   }

   public static void main(String[] args) {
       GetMACAddress getMACAddress = new GetMACAddress();
       System.out.println(getMACAddress.getMACAddress("192.168.0.100")); // 获得该ip地址的mac地址
   }

   public static String procAll(String str) {
       return procStringEnd(procFirstMac(procAddress(str)));
   }

   public static String procAddress(String str) {
       int indexof = str.indexOf("Physical Address");
       if (indexof > 0) {
           return str.substring(indexof, str.length());
       }
       return str;
   }

   public static String procFirstMac(String str) {
       int indexof = str.indexOf(":");
       if (indexof > 0) {
           return str.substring(indexof + 1, str.length()).trim();
       }
       return str;
   }

   public static String procStringEnd(String str) {
       int indexof = str.indexOf("\r");
       if (indexof > 0) {
           return str.substring(0, indexof).trim();
       }
       return str;
   }
}