校验日期格式

public static boolean checkDate(String date) {
    String datePattern1 = "\\d{4}-\\d{2}-\\d{2}";
    String datePattern2 = "^((\\d{2}(([02468][048])|([13579][26]))"
            + "[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|"
            + "(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?"
            + "((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/\\s]?("
            + "(((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?"
            + "((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))";
    if ((date != null)) {
        Pattern pattern = Pattern.compile(datePattern1);
        Matcher match = pattern.matcher(date);
        if (match.matches()) {
            pattern = Pattern.compile(datePattern2);
            match = pattern.matcher(date);
            boolean matches = match.matches();
            if(Boolean.FALSE.equals(matches)){
                return false;
            }
        }else {
            return false;
        }
    }
    return true;
}