Hi,
I should probably listen your advice and first try to do without ajax. I was
confusing lots of things. But maybe my last question on this topic, because
i feel that it is almost working.
I have UsersAjaxAction class in actions.admin package. This is the class:
(I'm basically trying to do pagination with ajax calls. I send parameters to
list function based on the page number user clicked.)
public class UsersAjaxAction extends ActionSupport {
private List<User> users;
private UserService service;
public String smd() {
return SUCCESS;
}
@SMDMethod
public String list(int maxResult, int offset) {
service = new UserService();
users = service.findUserEntities(maxResult, offset);
return SUCCESS;
}
public List<User> getUsers() {
return users;
}
}
Then in my struts.xml I have this:
<package name="actions.admin" namespace="/admin" extends="json-default">
<action name="UsersAjaxAction" class="actions.admin.UsersAjaxAction"
method="smd">
<interceptor-ref name="json">
<param name="enableSMD">true</param>
</interceptor-ref>
<result type="json">
<param name="enableSMD">true</param>
</result>
</action>
</package>
Here, i'm not sure if the 'name' and 'namespace' parameters are correct. As
i said my class is in actions.admin package.
This is the generated html code where i make rpc call
dojo.require("dojo.rpc.JsonpService");
var service = new
dojo.rpc.JsonService("/myproject/admin/UsersAjaxAction");
//execute remote method
defered.addCallback(callback);
................
I assume the line above matches to some action based on struts.xml, but I
got the following error after i click the link which initiates javascript
function. (Otherwise, the page renders ok. i see no error messages in
eclipse console. but immediately after i clicked the link, i got this error.
SEVERE: Servlet.service() for servlet default threw exception
java.lang.NoSuchMethodError:
com.opensymphony.xwork2.ActionContext.get(Ljava/lang/Object;)Ljava/lang/Object;
at com.googlecode.jsonplugin.JSONResult.execute(JSONResult.java:157)
at
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:361)
Sorry for taking your time. If i'm writing too long and breaking some rules
of the mailing list, please warn me. Don't worry i won't get offended.
On Sat, Jan 10, 2009 at 4:17 PM, Musachy Barroso <[email protected]> wrote:
> > a) Can I extend the first line as <s:url id="smdUrl"
> namespace="/nodecorate"
> > action="SMDAction" *method="list"*/> (save ,delete also) and NOT define
> any
> > interceptors?
>
> yes you can specify method in the url. You do not define interceptors
> in the url, but the action mapping.
>
> > b) If I have to define interceptors is it gonna be something like this
> > @InterceptorRefs({
> > @InterceptorRef("list"),
> > @InterceptorRef("save")
> > @InterceptorRef("delete")
> > }) on the class.
> >
>
> Do you have an interceptor stack for each method? I think you are
> getting things mixed here.
>
> > c) Doc says: Add the map inside a package that extends
> > "json-default"<package name="example" extends="
> > *json-default*">
> > <action name="JSONExample" class="example.JSONExample">
> > <result type="json"/>
> > </action>
> > </package>
> >
>
> Create a package that extends the json package (it inherits the
> results and interceptor there), and then use the @ParentPackage
> (
> http://cwiki.apache.org/WW/convention-plugin.html#ConventionPlugin-ParentPackageannotation
> )
> in your actions.
>
> > Do i need this extends parameter? If so, how can i use it with convention
> > plugin?
> >
> > One more thing: Which libs do i need: Just jsonplugin-0.32.jar* *and
> > struts2-dojo-plugin-2.1.5.jar. What is the purpose of json-lib-2.1.jar?
>
> You don't need json-lib. If you are just getting started this might be
> confusing, I would suggest that you get the crud working with plain
> html first, using convention, and then try to port it to JSON RPC, it
> will be easier (and less frustrating if you are learning)
>
> musachy
> --
> "Hey you! Would you help me to carry the stone?" Pink Floyd
>
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