Method isNumeric

src/main/java/util/CommonUtils.java:252–259

利用正则表达式判断字符串是否是数字 @param str @return

(String str)

     * @return
     */
    public static boolean isNumeric(String str) {
        Pattern pattern = Pattern.compile("[0-9]*");
        Matcher isNum = pattern.matcher(str);
        if (!isNum.matches()) {
            return false;
        }
        return true;
    }

    /**
     * 获取错误提示