我如何获得jsp客户端机器的MAC地址

Question

我正在开发一个安全投票系统的应用程序。我需要将特定机器的MAC地址设置为“投票机”。我如何获得客户机的MAC地址？

Answer 1

  //InetAddress address = InetAddress.getLocalHost(); 
      InetAddress address = InetAddress.getByName("192.168.46.53"); 

      /* 
      * Get NetworkInterface for the current host and then read the 
      * hardware address. 
      */ 
      NetworkInterface ni = NetworkInterface.getByInetAddress(address); 
      if (ni != null) { 
       byte[] mac = ni.getHardwareAddress(); 
       if (mac != null) { 
        /* 
        * Extract each array of mac address and convert it to hexa with the 
        * following format 08-00-27-DC-4A-9E. 
        */ 
        for (int i = 0; i < mac.length; i++) { 
         System.out.format("%02X%s", mac[i], (i < mac.length - 1) ? "-" : ""); 
        } 
       } else { 
        // Address doesn't exist or is not accessible. 
       } 
      } else { 
       // Network Interface for the specified address is not found. 
      }