根据IP地址获取用户的MAC地址Java代码

2016-12-20 13:16| 发布者: zhangjf| 查看: 496| 评论: 0

摘要: 根据IP地址获取用户的MAC地址代码 /** * 根据IP地址获取mac地址 * @param ipAddress 127.0.0.1 * @return * @throws SocketException * @throws UnknownHostException */ p ...

根据IP地址获取用户的MAC地址

[Java]代码

/**
* 根据IP地址获取mac地址
* @param ipAddress 127.0.0.1
* @return
* @throws SocketException
* @throws UnknownHostException
*/
public static String getLocalMac(String ipAddress) throws SocketException,
UnknownHostException {
// TODO Auto-generated method stub
String str = "";
String macAddress = "";
final String LOOPBACK_ADDRESS = "127.0.0.1";
// 如果为127.0.0.1,则获取本地MAC地址。
if (LOOPBACK_ADDRESS.equals(ipAddress)) {
InetAddress inetAddress = InetAddress.getLocalHost();
// 貌似此方法需要JDK1.6。
byte[] mac = NetworkInterface.getByInetAddress(inetAddress)
.getHardwareAddress();
// 下面代码是把mac地址拼装成String
StringBuilder sb = new StringBuilder();
for (int i = 0; i < mac.length; i++) {
if (i != 0) {
sb.append("-");
}
// mac[i] & 0xFF 是为了把byte转化为正整数
String s = Integer.toHexString(mac[i] & 0xFF);
sb.append(s.length() == 1 ? 0 + s : s);
}
// 把字符串所有小写字母改为大写成为正规的mac地址并返回
macAddress = sb.toString().trim().toUpperCase();
return macAddress;
} else {
// 获取非本地IP的MAC地址
try {
System.out.println(ipAddress);
Process p = Runtime.getRuntime()
.exec("nbtstat -A " + ipAddress);
System.out.println("===process=="+p);
InputStreamReader ir = new InputStreamReader(p.getInputStream());
BufferedReader br = new BufferedReader(ir);
while ((str = br.readLine()) != null) {
if(str.indexOf("MAC")>1){
macAddress = str.substring(str.indexOf("MAC")+9, str.length());
macAddress = macAddress.trim();
System.out.println("macAddress:" + macAddress);
break;
}
}
p.destroy();
br.close();
ir.close();
} catch (IOException ex) {
}
return macAddress;
}
}

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根据IP地址获取用户的MAC地址Java代码

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