Spring Framework - Date Field in a SimpleFormController

1. Override the initBinder method.
2. Create a SimpleDateFormat, e.g. MM/dd/yyyy HH:mm:ss where M is month, d is day, y is year, H is hour(0-23), m is minute, and s is second.
3. Set the date format lenient false, which means inputs do not have to match the format exactly
4. Create a CustomDateEditor(dateFormat, true), where true means empty allowed.
5. Register the editor to Date.class.