On Sun, May 30, 2010 at 9:42 AM, Witold Szczerba <pljosh.mail_at_gmail.com> wrote:
> I am sorry, but still, I do not get it. You are saying my servlet is
> supposed to place appropriate values into the request or session and
> forward the request to the view. What does it mean the container is
> responsible for writing view to the response?
Just like the container is responsible for writing static pages -- HTML,
CSS, JavaScript -- to the response.
> According to what you say - it is wrong, as servlet should not write
> data to the response, the container should do it. So in this case, my
> servlet should place the "Customer" object into the request or session
> (an then what?). What does it mean? Could you give me some tiny
> example?
Servlet:
Customer customer = Customer.find(customerId);
request.setAttribute("customer", customer);
RequestDispatcher rd =
this.getServletContext().getRequestDispatcher(someViewPage);
rd.forward(request, response);
JSP (someViewPage):
<p>Hello, ${customer.firstName}</p>
That's HTML, but you can as easily format as XML, JSON, whatever.
The container is responsible for interpreting it and writing the response.
--
Hassan Schroeder ------------------------ hassan.schroeder_at_gmail.com
twitter: @hassan