java那個(gè)方法可以獲取本地ip?有代碼示例嗎？

import java.net.InetAddress;
public class T {
    public static void main(String[] args) throws Exception {
         InetAddress addr = InetAddress.getLocalHost();
         String ip=addr.getHostAddress().toString(); //獲取本機(jī)ip
         System.out.println(ip);
  }
}