Use connection class

import java.sql.Connection;

public class MailItemAction extends MyAction{

  public static Logger logger = Logger.getLogger(MailItemAction.class);

  public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException{
        logger.debug("execute");
        Connection conn = null;
         try {
            conn = ConnectionFactory.getConnection(dataSourceName);
            MailItemForm myForm = (MailItemForm)form;
        }catch (Exception e) {
            logger.info("errore " + e.getMessage());
        }finally {
            try {
                conn.close();
             } catch (Exception e) {
                throw new ServletException(e.getMessage());
            }
        }
    }
}