java根據本地Ip擷取mac地址

標籤：

 1 import java.net.InetAddress; 2 import java.net.NetworkInterface; 3 import java.net.SocketException; 4 import java.net.UnknownHostException; 5  6 public class MacAddress { 7  8     /** 9      * @param args10      * @throws UnknownHostException 11      * @throws SocketException 12      */13     public static void main(String[] args) throws UnknownHostException, SocketException {14 15         InetAddress ia = InetAddress.getLocalHost();16         System.out.println(ia);17         getLocalMac(ia);18     }19     private static void getLocalMac(InetAddress ia) throws SocketException {20         // TODO Auto-generated method stub21         //擷取網卡，擷取地址22         byte[] mac = NetworkInterface.getByInetAddress(ia).getHardwareAddress();23         24         System.out.println("mac數組長度："+mac.length);25         StringBuffer sb = new StringBuffer("");26         for(int i=0; i<mac.length; i++) {27             if(i!=0) {28                 sb.append("-");29             }30             //位元組轉換為整數31             int temp = mac[i]&0xff;32             String str = Integer.toHexString(temp);33             System.out.println("每8位:"+str);34             if(str.length()==1) {35                 sb.append("0"+str);36             }else {37                 sb.append(str);38             }39         }40         System.out.println("本機MAC地址:"+sb.toString().toUpperCase());41     }42 }

本來想通過寫web程式通過獲得使用者ip然後得到使用者的網卡地址，這樣可以做某些業務了。。。結果發現web暫時沒有實現方法，找另外方法去了

java根據本地Ip擷取mac地址