public static String trimUni(String s){
        int len = s.length();
        int st = 0;
        char[] val = s.toCharArray();

        while (st < len && (val[st] <= ' ' || val[st] == '　')) {
            st++;
        }
        while (st < len && (val[len - 1] <= ' ' || val[len - 1] == '　')) {
            len--;
        }
        
        if(st > 0 || len < s.length()) {
            return s.substring(st, len);
        }
        
        return s;
    }