Need help in Delete operation using blazeDS

Question

Please find the flex client code and servlet code given below
Trying to call a DELETE methods on the servlet using BlazeDS.Configuration is perfect in the proxy-config.xml and services-config.xml
when DELETE is called with paramter user="krishna it is being printed as
received DELETE operation with parameternull   
My Question is why the servlet printing null value for the user where it should print "someuser"?Can some one help me on this?
FLEX CLIENT
<?xml version="1.0" encoding="utf-8"?><mx:Application  xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical">
<mx:Script><![CDATA[
 import mx.controls.Alert; 
import mx.rpc.http.HTTPService; 
import mx.rpc.events.ResultEvent; 
import mx.rpc.events.FaultEvent; 
public function callServletDELETE():void { 
var service:HTTPService = new HTTPService();  
//service.url= "http://localhost:8080/examples/blazeDS";service.destination=
"BlazeDSHTTP"; //this is configured in proxy-config.xml fileservice.useProxy =
true; service.method =
"DELETE"; service.resultFormat=
"e4x"; service.addEventListener(
"result", billingCarrierResult);service.addEventListener(
"fault", httpFault); service.send({user:
'someuser'});}
protected function billingCarrierResult(event:ResultEvent):void{
serviceResultsTextArea.text =
"Success with BlazeDS!\n"+event.result; 
protected function httpFault(event:FaultEvent):void{
serviceResultsTextArea.text =
"Failure trying to access service.\n"+ event.fault.faultString + "\n" + event.fault.faultDetail;}
]]>
</mx:Script> <mx:TextArea  id="serviceResultsTextArea" width="50%" height="50%" />
<mx:Button  label="DELETE" click="callServletDELETE()"/>
</mx:Application>
servlet
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
* Simple example intended to demonstrate BlazeDS with HttpService.
public class BlazeHttpExample extends HttpServlet
   //excluded other methods GET,POST as they are working fine
    * Handles the HTTP <code>DELETE</code> method.
    * @param request servlet request
    * @param response servlet response
   @Override
   protected void doDelete(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException
      System.out.println("received DELETE operation with parameter"+request.getParameter("user"));
   @Override
   public String getServletInfo()
      return "Simple intended to illustrate BlazeDS HttpService support.";

Answer 1

in your java code you are considering user as the parameter.. but that is not a parameter..
When making a http call in flex try something like this
var obj:Object = new Object();
obj["user"] = 'someuser';
service.send(obj);
this should work hopefully.