"Shun, Vadim" wrote:
>
> Hi,
>
> what is the alternative of passing classes through HttpSession from servlet
> classes to JSP?
> I've been using session in conjunction with:
> ServletContext sc = servlet.getServletContext();
> RequestDispatcher rd = sc.getRequestDispatcher (url);
> rd.forward (req, res);
>
> and would like to change "session approach" to request/response pair when
> possible.
> While JSP-ToServlet change was easy (use request.getParameter on the server
> of JSP value placed in a form), I am shortsighted as to how to pass the data
> the other way without resorting to session.
If you only need the data to continue processing of the same request in a
JSP, you can use request attributes:
ServletContext sc = servlet.getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher (url);
req.setAttribute("foo", myBean);
rd.forward (req, res);
The JSP page can then access the object from the request scope, e.g.
<jsp:useBean id="foo" class="myPackage.MyBean" />
Note that the id attribute value must match the name you give the
attribute in the servlet.
Hans
--
Hans Bergsten [EMAIL PROTECTED]
Gefion Software http://www.gefionsoftware.com
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