正则表达式：^([0-9]+)$ -> ^：匹配以0-9开头，[0-9]：匹配0-9数字，+：匹配至少一个数字，$：匹配以数字结尾

/***正则表达式:验证字符串数字*两种方式：*1.pattern.matcher(number.trim()).find()*2.Pattern.matches(numberRegexp,number.trim())**/public static boolean matchNumber(String number) {    boolean result = false;    if (number!=null) {        final String numberRegexp = "^([0-9]+)$";        try {            Pattern pattern = Pattern.compile(numberRegexp);            if (pattern.matcher(number.trim()).find()) {                result = true;            }            /*if (Pattern.matches(numberRegexp,number.trim())) {                result = true;            }*/        } catch (Exception e) {            result = false;        }    } else {        result = false;    }    return result;}