request.getSession() session data to be retained upon redirection -how?

[phillip.s.powell]

What is the best form of redirection to ensure that
request.getSession() data is not lost?

<code>
<pre>
// DO STUFF AND RETAIN IN request.getSession() in index.jsp
response.sendRedirect(forwardUrl);
</pre>
</code>

The moment you go to "forwardUrl":

<code>
<pre>
out.println(request.getSession().toString()); // YOU SEE A BRAND NEW
request OBJECT WITH NO SESSION DATA
</pre>
</code>

How do I prevent this? Is &lt;jsp:forward page="<%= forwardUrl %>" /
&gt; the best option or do you recommend another method?

Phil

 

[Dave Miller]

What is the best form of redirection to ensure that
request.getSession() data is not lost?

<code>
<pre>
// DO STUFF AND RETAIN IN request.getSession() in index.jsp
response.sendRedirect(forwardUrl);
</pre>
</code>

The moment you go to "forwardUrl":

<code>
<pre>
out.println(request.getSession().toString()); // YOU SEE A BRAND NEW
request OBJECT WITH NO SESSION DATA
</pre>
</code>

How do I prevent this? Is &lt;jsp:forward page="<%= forwardUrl %>" /
&gt; the best option or do you recommend another method?

Phil

Depending on what you're forwarding to, you might try
RequestDispatcher or jsp:include