<?xml version="1.0" encoding="utf-8"?>  
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="http.send();initApp()">  
    <mx:Script>  
        <![CDATA[  
            import mx.rpc.events.ResultEvent;  
            import mx.collections.ArrayCollection;  
            [Bindable]  
            public var myData:ArrayCollection;  
            
            private function initApp():void {
                this.http.send();
            }
            
            
            public function resultHandler(event:ResultEvent):void{  
//                        error.text = event.result as String;  
                        myData = new ArrayCollection(event.result.shuju.shuiguo);            
                }

         ]]>  
    </mx:Script>

   <!--<mx:HTTPService id="http" url="http://localhost:8080/web.xml" useProxy="false" result="resultHandler(event)"/>-->  
    <mx:HTTPService id="http" url="http://localhost:8080/web.xml" useProxy="false" result="myData=ArrayCollection(http.lastResult.shuju.shuiguo)"/>
    



     <mx:DataGrid dataProvider="{myData}"
x="80" y="141" width="262" height="92"
id="shippingOptionsList"
editable="false" enabled="true">
<mx:columns>
<mx:DataGridColumn headerText="Task1" dataField="Task1" />
<mx:DataGridColumn headerText="Task2" dataField="Task2" />
</mx:columns>
</mx:DataGrid>

</mx:Application>

<mx:HTTPService id="http" url="http://localhost:8080/web.xml"
useProxy="false"
result="myData=ArrayCollection(http.lastResult.shuju.shuiguo)"/>

<mx:HTTPService id="http" url="http://localhost:8080/web.xml"
useProxy="false" result="resultHandler(event)"/>

TypeError: Error #1034: Type Coercion failed: cannot convert mx.collections::ArrayCollection@36f5741 into Array。
    at TEST2/resultHandler()[C:\Documents and Settings\Administrator\My Documents\Flex Builder 3\TEST2\src\TEST2.mxml:17]
    at TEST2/__http_result()[C:\Documents and Settings\Administrator\My Documents\Flex Builder 3\TEST2\src\TEST2.mxml:23]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at mx.rpc.http.mxml::HTTPService/http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\http\mxml\HTTPService.as:290]
    at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::resultHandler()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\AbstractInvoker.as:193]
    at mx.rpc::Responder/result()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\Responder.as:43]
    at mx.rpc::AsyncRequest/acknowledge()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\AsyncRequest.as:74]
    at DirectHTTPMessageResponder/completeHandler()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\messaging\channels\DirectHTTPChannel.as:403]
    at flash.events::EventDispatcher/dispatchEventFunction()