正则表达式判断姓名输入格式是否正确

public static boolean checkPassengerNameValid(String passengerName) {
    //姓名中可包含汉字和字母
    String RULE = "([\u4e00-\u9fa5]+|[a-zA-Z]+)";
    Pattern pattern = Pattern.compile(RULE);
    Matcher matcher = pattern.matcher(passengerName);
    if(matcher.matches()) {
        //不包含特殊字符
        return true;
    } else {
        //包含了特殊字符
        return false;
    }

}