Question

How to check date format in Spring WebFlow2.

I am trying to find some code that will work with Spring Webflow to check that the date the user entered is valid. I would think this is a easy check

Answer 1

Use a JavaScript regular expression on the client side and java.text.DateFormat on the server side:

DateFormat formatter = new SimpleDateFormat("yyyy-MMM-dd");
formatter.setLenient(false);
String dateAsString = request.getParameter("date");
Date date = formatter.parse(dateAsString); // throws an exception if the String is incorrectly formatted.