Re: [xwiki-users] AJAX and Macro

On 08/25/2011 09:50 AM, Grüner Heinrich wrote: Well, a java bean isn't exactly ready to respond to HTTP requests by itself, so you need to make an intermediary that lies somewhere in the way of HTTP requests and exposes this data. There are several ways to do this, depending on how complex you want to make this interaction. The best approach I'd advise is to write a scriptable service component that offers some specific methods you need, and use it inside a wiki document. Here's a short plan: 1. Write another class that implements org.xwiki.script.service.ScriptService as a component. See http://platform.xwiki.org/xwiki/bin/DevGuide/WritingComponents for more details about writing components (don't forget to declare it in components.txt). The hint of the component is the name of the service, so chose something descriptive. Being in Java, you'll find a way to get hold of your data and manipulate it as you wish. Build and put the jar in WEB-INF/lib, just like your macro (they can be both in the same jar). 2. Write a wiki document that calls your new scriptable service like: $service.myServiceName.getMyData() and outputs the data in the desired format. Don't forget to set the correct content type, so if you're outputting json put something like this: $response.setContentType('application/json') Of course, don't forget to wrap your code inside a {{velocity}} macro. 3. From Javascript make calls to this page using /get/ as the action and outputSyntax=plain as the query string. Don't hardcode the URL, use $xwiki.getURL('Service.DocumentName', 'get', 'outputSyntax=plain') to let the platform give you the correct URL. Speaking of javascript, for the best practice you should read http://platform.xwiki.org/xwiki/bin/DevGuide/SkinExtensionsTutorial