Passing data from a servlet to a jsp

Hello,
 I would like pass some data that a servlet gets to a jsp page. Could some body show me some sample code how to do this.
Ramani
ramani081399Asked:
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cheekycjCommented:
there are three approaches.

1. use cookies.
2. use session vars.
3. use request object.

I will show code examples of 2 and 3.

2:
in the servlet add this:
HttpSession session = request.getSession(true);
session.setAttribute("SOME_KEY", theVariable);

now redirect or forward to jsp.

in the JSP you can retrieve the value using:
varType varName = (varType) session.getAttribute("SOME_KEY");

3:
In the servlet add this:

request.setAttribute("SOME_KEY", theVariable);
getServletContext().getRequestDispatcher("/jsp/jsptoforwardto.jsp").forward(request, response);

now in your JSP you can retrieve the value using:

varType varName = (varType) request.getAttribute("SOME_KEY");

HTH,
CJ
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raid999Commented:
i really dont understand you fully but if you put this in a jsp page
<jsp:include page="../Servlet/nameofservlet"/>
and make that servlet to display in html format then the user opening that jsp page will also get the result from the servlet if that what you mean

but if you mean just passing a variable then in the servlet get the variable and then use
request.sendRedirect("http://www.yoursite.com/filename.jsp?variable="+variablename);

___________
cheers
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cheekycjCommented:
raid99: that will only work for scalor values what about arrays or date or any other object?

CJ
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cheekycjCommented:
any updates for us?

CJ
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cheekycjCommented:
Glad I could help and Thank you for the "A"

CJ
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climbingjaffaCommented:
Hi just confused where you put this in the jsp

" varType varName = (varType) request.getAttribute("SOME_KEY");2



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cheekycjCommented:
Hi climbingjaffa : you should open your own question for this but to answer simply:
You can put it anywhere in the JSP as long as it is before any code that references the jsp.

I usually like to put my var retrievals at the top like

<%
varType varName = (varType) request.getAttribute("SOME_KEY");
%>
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