CODEWITHSUNDEEP
javadatestruts2localizationinternationalization
meskobalazs
meskobalazs

Reputation: 16041

How to change default date formats in Struts2?

I am developing a multilingual Struts2 application, and I have quite a few actions which are dealing with Calendar properties. The default type conversion works most of the time, however in some locales I would like to change the default format used.

Specifically I would like to have the dates in English locale to follow the yyyy-MM-dd format. However, this does not work (strangely yyyy-MM-dd HH:mm works fine, but in this case I do not want to have a time part), as Struts2 expect dates in English locale to look different.

So, I would like to change the expected format of the conversion. I am looking for a sane solution for this. The options I have already tried:

How to fix the solution A? Or is there an alternative approach? Of course, if this can be done entirely in configuration, that would be the best.

Upvotes: 3

Views: 1134

Answers (1)

meskobalazs
meskobalazs

Reputation: 16041

Okay, I found a solution for my problem at hand, still, I think this could done in a saner way. Anyway, I am posting my own type converter:

public class DateConverter extends StrutsTypeConverter {

    private DateFormat dateFormat;

    {
        ActionContext ctx = ActionContext.getContext();
        ActionSupport action = (ActionSupport) ctx.getActionInvocation().getAction();
        String formatString = action.getText("dateformat.ui");
        dateFormat = new SimpleDateFormat(formatString);
    }

    public Object convertFromString(Map context, String[] values, Class toClass) {
        String input = values[0];
        try {
            Date date = dateFormat.parse(input);
            Calendar cal = Calendar.getInstance();
            cal.setTime(date);
            return cal;
        } catch (ParseException e) {
            return null;
        }
    }

    public String convertToString(Map context, Object object) {
        Calendar cal = (Calendar) object;
        return dateFormat.format(cal.getTime());
    }

}

I removed the non-essential parts of the code, but this is a working solution.

Upvotes: 2

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