Hi,
why does your forward "ShowList" forward to an action url? In good old
Struts1 manner, this should not be necessary. Instead, i would implement
place-list.jsp in such a way that it extracts all necessary information
from the user's session. Your action PlaceAction should then prepare
everything correctly so that place-list.jsp finds it. The same thing
holds for place-details.jsp (and the forward named "Edit"): It should
rely on the session state and that PlaceDetailsAction has prepared
everything correctly. You only need to find a good way to maintain the
correct information in the session. In Struts1, i would traditionally
use a class extending ActionForm to accomplish this.
Unrelated to your problems but still relevant to Struts in general: If
you are starting with Struts freshly anyway, why not use Struts2
instead? I would suggest to talk to your superiours and/or your customer
to use Struts2. If you need to use it side-by-side with Struts1, this is
also possible and you will find a lot of resources about how to do this
in the net (or come back to this list anyway, the folks here usually are
happy to help).
Robert
Peter Schmitt schrieb:
Hi,
I'm new to Struts, using version 1.2.4, so this might in fact be a
configuration problem...
Here's an extract from my struts-config.xml first:
<action path = "/place"
type = "de.isogmbh.srp.strutstest.client.PlaceAction"
name = "PlaceForm"
scope = "request"
validate = "true"
input = "/place.jsp"
parameter = "do"
>
<forward name="ShowList" path="/place-list.do" />
</action>
<action path = "/place-list"
type =
"de.isogmbh.srp.strutstest.client.PlaceDetailAction"
name = "PlaceForm"
scope = "request"
validate = "true"
input = "/place-list.jsp"
parameter = "do"
>
<forward name="Edit" path="/place-details.do" />
</action>
<action path = "/place-details"
forward = "/place-details.jsp" />
On the page place.jsp, the user can enter a place name. PlaceAction will
then load a list of all places with that name, to be displayed on
place-list.jsp. place-list.jsp has links to place-details.jsp, which shows
more information about one particular place. There is no JavaScript in my
JSP and no empty img tags.
PlaceAction and PlaceDetailAction are both subclasses of DispatchAction.
PlaceAction has a method showList, and PlaceDetailAction has a method
getPlace. Here's an extract of place.jsp:
<html:form action="/place?do=showList">
<bean:message key="place.jsp.question"/>
<html:text property="name" size="30" />
<html:submit property="submit"><bean:message
key="place.jsp.search"/></html:submit>
</html:form>
And here's an extract of place-list.jsp:
<html:link
module="/place-details"
action="/place-details?do=getPlace"
paramName="entry" paramProperty="id" paramId="placeId" >
<bean:write property="name"
name="entry"/>
</html:link>
My Struts application is in a .war file running on Tomcat 5.0. When I
entered a place name on place.do (using Internet Explorer 6), I got a
NoSuchMethodException because PlaceDetailAction does not define a method
showList.
When I debugged the whole thing, I saw what happened: At the end of
PlaceAction.showList, I return mapping.findForward("ShowList"). That method
performs a kind of lookup in struts-config, where I said ShowList is a
forward to place-list.do. Now place-list calls PlaceDetailAction, where it
expects a method showList...
What am I doing wrong?
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