QUESTION 15

You have a simple wpb application that has a single Front Controller servlet that dispatches to JSPs generate a
variety of views. Several of these views require further database processing to retrieve the necessary order
object using the orderID request parameter. To do this additional processing, you pass the request first to a
servlet that is mapped to the URL pattern /WEB INF / retrieveOrder.do. in the deployment descriptor. This
servlet takes two request parameters, the ordered and the jspID and the jspURL. It handles the database calls
to retrieve and build the complex order objects and then it dispatches to the jspURL. Which code snippet in the
Front Controller servlet dispatches the request to the order retrieval servlet?

A. request.setAttribute("orderID", orderID);
   request.setAttribute("jspURL", jspURL);
   RequestDispatcher view  = context.getRequestDispatcher("/WEB-INF/retreiveOrder.do");
   view.forward(request, response);
B. request.setParameter("orderID", orderID);
   request.setParameter("jspURL", jspURL);
   Dispatcher view = request.getDispatcher("/WEB-INF/retreiveOrder.do");
   view.forwardRequest(request, response);
C. String T="/WEB-INF/retreiveOrder.do?orderID=%d&jspURL=%s";
   String url = String.format(T, orderID, jspURL);
   RequestDispatcher view = context.getRequestDispatcher(url);
   view.forward(request, response);
D. String T="/WEB-INF/retreiveOrder.do?orderID=%d&jspURL=%s";
   String url = String.format(T, orderID, jspURL);
   Dispatcher view = context.getDispatcher(url);
   view.forwardRequest(request, response);

  
Correct Answer: C