JSF 2 Default DateTime Converter Pattern

问题

My JSF pages display DateTime from managed beans in this format: "MM/dd/yyyy h:mm a"

I want avoid duplicate converter declaration in different pages: <f:convertDateTime type="both" pattern="MM/dd/yyyy h:mm a" dateStyle="short" timeStyle="medium" />

Is there a way to make the above converter default for all DateTime fields?

(Experience with JSF 2: 2 months.)

回答1:

Just extend the DateTimeConverter class behind <f:convertDateTime> and set the defaults in the constructor.

@FacesConverter("defaultDateConverter")
public class DefaultDateConverter extends DateTimeConverter {

    public DefaultDateConverter() {
        setPattern("MM/dd/yyyy h:mm a");
    }

}

Use it as <f:converter converterId="defaultDateConverter" />

Please note that I omitted other attributes as they are ignored anyway when pattern is specified.

来源：https://stackoverflow.com/questions/14990960/jsf-2-default-datetime-converter-pattern