String IPV4_REGEX = "\\A(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}\\z";

        List<String> list = Arrays.asList(split);

        for (String item : list) {

            if(Pattern.matches(IPV4_REGEX, item) == false){

                throw new Exception("存在不合规的ip");

            }

        }