/**
     * 验证字符串是否为数字
     * */
    private boolean isNumberic(String str) {
        try {
            Boolean strResult = str.matches("-?[0-9]+.*[0-9]*");
            if (strResult == true) {
                return true;
            }
            //            Pattern pattern = Pattern.compile("[0-9]*");
            //            Matcher isNum = pattern.matcher(str);
            //            if (isNum.matches()) {
            //                return true;
            //            }
        } catch (Exception e) {
            log.severe(e);
            e.printStackTrace();
        }
        return false;
    }