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Martin--
----- Original Message -----
From: "Ted Husted" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <user@struts.apache.org>
Sent: Friday, October 19, 2007 7:45 AM
Subject: Re: JSON RPC
> I've been doing some work with Struts and JSON, but I don't know
> anything about using JSON RPC with Swing.
>
> For Struts, you don't really need to use full-blown JSON RPC. You can
> use an ordinary XHR submit, and then use the JSON plugin for the
> result. The tricky part is handling exceptions. Without RPC, it's
> helpful to setup a base Action support class that exposes the
> Exception messages as properties.
>
> In the Action support class, we add properties like this:
>
> public String getExceptionMessage() {
> ActionContext context = ActionContext.getContext();
> Object value = context.getValueStack().
> findValue("exception.message");
> if (value==null) return null;
> return value.toString();
> }
>
> public String getExceptionStack() {
> ActionContext context = ActionContext.getContext();
> Object value = context.getValueStack().
> findValue("exceptionStack");
> if (value==null) return null;
> return value.toString();
> }
>
> and add an exception handler to struts.xml
>
> <global-results>
> <result name="error"/>
> </global-results>
>
> <global-exception-mappings>
> <exception-mapping
> exception="java.lang.Exception" result="error"/>
> </global-exception-mappings>
>
> Then, on the client-side, we check for the exception. Here's the code
> we use for YUI:
>
> my.asyncRequest = function (sAction, fnCallback) {
> return YAHOO.util.Connect.asyncRequest("POST", sAction, {
> success : function(o) {
> var oPayload = eval("(" + o.responseText + ")") ;
> if (oPayload.exceptionMessage) {
> my.asyncRequestException(o.responseText);
> }
> fnCallback(oPayload);
> },
> failure : function(o) {
> my.asyncRequestError(o.responseText);
> }
> });
> };
>
> This is working for now, but we'd like to refine the approach so that
> it looks more like JSON RPC.
>
> I'll be speaking more about this approach at the Ajax Experience in
> Boston next week.
>
> -- HTH, Ted
> <http://www.husted.com/ted/blog/>
>
>
> On 10/19/07, Frans Thamura <[EMAIL PROTECTED]> wrote:
> > hi
> >
> > anyone have successdevelop JSON on Struts but the apps is not read but
> > submit data
> >
> > i know this is JSON RPC
> >
> > but anyone success create it?
> >
> > i want the client is not javacsript buat swing
> >
> > any glue for me all?
> >
> > Frans
> > Indonesia
> >
>
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