Hi Jeromy, thanks for the respose.
The response is already committed in the action class (before the Result is
executed). In the execute() method, the result of 'response.isCommitted()'
is true. So I think the response is committed even before getting to the
Result.
According to J2EE documentation, when using
RequestDispatcher.include(rquest, response), you can't set headers in the
response, which means you can't set cookies. That's the problem I'm having
- I can't set a cookie in the action class called via s:action. So perhaps
that's what s:action does, it does an include.
David
Jeromy Evans
<[EMAIL PROTECTED]
eskyminds.com.au> To
Struts Users Mailing List
06/13/2008 10:04 <user@struts.apache.org>
PM cc
Subject
Please respond to Re: Response already committed when
"Struts Users using ActionTag
Mailing List"
<[EMAIL PROTECTED]
he.org>
[EMAIL PROTECTED] wrote:
> I have a JSP that uses an ActionTag <s:action> to call a Struts 2 action
> class directly from the JSP. But in the action class, the HTTP response
> has already been committed. This makes it impossible for me to set
cookies
> from my action class.
>
> I tested this by calling HttpServletResponse.isCommitted() is my
execute()
> method of my action class, and it returns true.
>
> Is this a bug? Why is the response committed if the JSP hasn't finished
> rendering?
>
Struts2 ActionInvocations are not designed to be nested, but the
s:action tag attempts to do this. It works most of the time, but not all
Results can be executed within another page, and not pages can handle
changes to the ActionContext by the nest invocation. The Action tag is
quite dodgy for this reason but there is currently no better alternative
in S2.
The problem is your case is with the Result that was executed. I
presume it has executed a ServletRedirectResult which assumes it can
commit the response (and does). TilesResult also has the same problem.
Try a different Result type.
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