Pass parameters to Struts forward

I need to pass some parameters to my forward,like that:

www.something/myapp/newslist.do?sysId=4

here is my action delaration:

      <action path="/newscreate"
            type="NewsCreateAction"
            name="newsForm">
            <forward name="success" path="/newslist.do"/>
      </action>

      <action path="/newslist"
            type="NewsListAction">
            <forward name="success" path="/NewsSystem/newslist.jsp"/>
      </action>

and here is my forward code in NewsCreateAction:
//I want to add some parameters here
      // Forward control to the specified success URI
            return (mapping.findForward("success"));

...i did'nt find this in Struts docs, and i'm too lazy today
to dig Struts sources, it's a friday ;)

Crossposted in JSP.

try setting redirect to false in your forward:
<forward name="success" path="/NewsSystem/newslist.jsp" redirect="false"/>

Hiya!

I was trying to do this too...with no success...what I ended up doing was (I haven't got my source code here at home, so this will be approximate):

ActionMapping success = mapping.findForward("success") ;
success = new ActionMapping( success.getPath() + "?sysid=" + sysid, success.getRedirect() ) ;
return success ;

Hope that helps you with a solution, and I hope you find a nicer way to do it, as then I will use that way too ;-)

Tim

> try setting redirect to false in your forward:
if it's false, i even can't point my browser to ......../newslist.do?sysId=4

ohhh....it seems i need to examine Struts sources...hm...%-/
strange...so simple thing, and no support for it...

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hm...yeah...there no anything about it in Struts ;(
Tim, i believe you mean ActionForward not ActionMapping :)
I get the same answer from JSP guys.
So, i write simple wrapper class for it, like this :
................................
import java.util.*;
import org.apache.struts.action.*;

/**
* Encupsulates parameters for ActionForward.
*/
public class ForwardParameters{
      private Map params=new HashMap();

      public ForwardParameters add(String paramName,String paramValue){
            params.put(paramName,paramValue);
            return this;
      }

      /**
      * Add parameters to provided ActionForward
      * @param forward ActionForward to add parameters to
      * @return ActionForward with added parameters to URL
      */
      public ActionForward forward(ActionForward forward){
            StringBuffer path=new StringBuffer(forward.getPath());
            Iterator iter=params.entrySet().iterator();
            if(iter.hasNext()){
              //add first parameter, if avaliable
                  Map.Entry entry=(Map.Entry)iter.next();
                  path.append("?"+entry.getKey()+"="+entry.getValue());
              //add other parameters
                  while(iter.hasNext()){
                        entry=(Map.Entry)iter.next();
                        path.append("&"+entry.getKey()+"="+entry.getValue());
                  }
            }

            return new ActionForward(path.toString());
      }
}
.................................

and my life become much easier now :):
........................
            return new ForwardParameters().add("sysId","4")
              .add("id","5")
              .add("some","value")
              .forward(mapping.findForward("success"));
......................

Thans Tim.

Woo! Nice wrapper :-)

I think I'll use that too :-) Woo!

Good luck!!

Tim

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LVL 92

Mick BarryJava DeveloperCommented: 2003-12-19

LVL 35

TimYatesCommented: 2003-12-19

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LVL 15

dualsoulAuthor Commented: 2003-12-20

TimYatesCommented: 2003-12-22

dualsoulAuthor Commented: 2003-12-22

have a nice week :)

Pass parameters to Struts forward

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