java代码如何获取网卡信息呢?

Enumeration<NetworkInterface> ns= NetworkInterface.getNetworkInterfaces();
while (ns.hasMoreElements()) {
    NetworkInterface n= ns.nextElement();
    if (n.isLoopback() || n.isVirtual()) {
        continue;
    }
    System.out.println(ToStringBuilder.reflectionToString(n, ToStringStyle.MULTI_LINE_STYLE));

    NetworkInterface t1= NetworkInterface.getByName(n); 
      System.out.println(ToStringBuilder.reflectionToString(t1)); 
      System.out.println(t1.getInterfaceAddresses().get(1).getAddress().getHostAddress());
}