Hi all,
I had the same problem..
I think there's nothing in Struts to achieve a redirect + parameters..
If you do this :
> myForward = mapping.findForward("toSomeAction");
> myForward.setRedirect(true);
> myForward.setQueryString(someJavaUtilMap);
> return myForward;
As the mapping.findForward() return you the *common* instance of
ActionForward, you'll end up with a messy ActionForward, as each time you'll
execute this code, the ActionForward keeps you're QueryString from one call
to another.
I finally code a quick and dirty method in my 'Mother of all' Action to
allow forward redirects :
One to 'clone' an ActionForward, based on the mapping :
public ActionForward cloneActionForward(ActionMapping mapping, String
name) {
ActionForward af = mapping.findForward(name);
if (af == null ) {
return null;
}
StringBuffer url = new StringBuffer(af.getPath());
actionCache.addParams(url);
af.setPath(url.toString());
logger.debug("cloneActionForward : "+url.toString());
ActionForward copyAF = new ActionForward();
copyAF.setName(af.getName());
copyAF.setPath(af.getPath());
copyAF.setRedirect(af.getRedirect());
return copyAF;
}
And an other one to add a parameter, and 'URL-Encode' it :
public ActionForward addParameter(ActionForward fwd, String key, Object
value) {
StringBuffer path = new StringBuffer( fwd.getPath() );
UrlUtil.addParam(path,key,value);
fwd.setPath( path.toString() );
return fwd;
}
So now, I redirect this way in my actions :
public ActionForward insert(ActionMapping mapping, SicolActionForm form,
HttpServletRequest req, HttpServletResponse resp)
throws ServletException, TorqueException, BusinessException {
// Code here that does an insert in database
// as we dont't want a 'Refresh' to re-fire this action, let's
redirect to the view :
ActionForward fwd = cloneActionForward(mapping, "displayView");
return addParameter(fwd, "key", obj.getPrimaryKey());
}
Hope this helps.
Alex.
PS :
I think this kind of fonctionality should be Struts-native, no ?
Or maybe we're the only one doing redirects here ?
> -----Message d'origine-----
> De : Arik Levin ( Tikal ) [mailto:[EMAIL PROTECTED]]
> Envoyé : mardi 11 juin 2002 08:52
> À : 'Struts Users Mailing List'
> Objet : RE: Adding query string to redirect w/in an action
>
>
> If you are redirecting from one action to another it's true,
> I had this problem, you can always use forward ;-)
>
> -----Original Message-----
> From: Roy Truelove [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 11, 2002 4:01 AM
> To: Struts Users Mailing List
> Subject: Adding query string to redirect w/in an action
>
> Hello all,
>
> Question about redirects.. I want to redirect from one action
> to another, but I want to append a query string to the URL.
> I know how to do this the "dirty" way, by creating a
> context-relative ActionForward and slapping the queryString
> onto the end. What I'm looking for (in theory) is the
> equivalent to this :
>
> myForward = mapping.findForward("toSomeAction");
> myForward.setRedirect(true);
> myForward.setQueryString(someJavaUtilMap);
> return myForward;
>
> Is there a clean way to add a query string to a redirect when
> the redirect goes to an action?
>
> Thanks,
> Roy
>
>
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