如何通过AsyncToken处理远程方法调用？

如何解决如何通过AsyncToken处理远程方法调用？

| 所以这是我想要工作的mxml：

<?xml version=\"1.0\" encoding=\"utf-8\"?>
<s:Application xmlns:fx=\"http://ns.adobe.com/mxml/2009\" 
               xmlns:s=\"library://ns.adobe.com/flex/spark\" 
               xmlns:mx=\"library://ns.adobe.com/flex/mx\" minWidth=\"955\" minHeight=\"600\">

    <fx:Script>
        <![CDATA[
            import argoseye.main.Golem;

            import mx.collections.ArrayCollection;
            import mx.rpc.AsyncResponder;
            import mx.rpc.AsyncToken;
            import mx.rpc.Responder;
            import mx.rpc.events.FaultEvent;
            import mx.rpc.events.InvokeEvent;
            import mx.rpc.events.ResultEvent;
            import mx.rpc.remoting.RemoteObject;
            protected function button1_clickHandler(event:MouseEvent):void
            {
                var ro:RemoteObject = new RemoteObject(\"destination\");
                ro.endpoint = \"http://Jesus/blazeds/messagebroker/amf\";
                ro.addEventListener(InvokeEvent.INVOKE,onInvoke);

                var token:AsyncToken = new AsyncToken();
                token.addResponder(new AsyncResponder(onResult,onFault));

                token = ro.getCells();
                textfeld.text = textfeld.text + \"Clickhandler called .... \\n\";

            }

            public function onResult(event:ResultEvent,token:Object):void {
                textfeld.text = textfeld.text + \"Resulthandler called .... \\n\";
                var cellList:ArrayCollection = event.result as ArrayCollection;

            }

            public function onFault(event:FaultEvent,token:Object):void
            {
                textfeld.text = textfeld.text + \"Faulthandler called .... \\n\";
            }

            public function onInvoke(event:InvokeEvent):void {
                textfeld.text = textfeld.text + \"Invokehandler called .... \\n\";
            }
        ]]>
    </fx:Script>

    <fx:Declarations>
        <!-- Place non-visual elements (e.g.,services,value objects) here -->
    </fx:Declarations>
    <s:Button x=\"1093\" y=\"575\" label=\"Button\" click=\"button1_clickHandler(event)\"/>
    <s:TextArea x=\"1022\" y=\"183\" id=\"textfeld\"/>
</s:Application>

输出是   调用处理程序称为....      Clickhandler称为...。 尽管BlazeDS控制台注册了成功的Resultevent，但是Resulthandler不会被调用。我做错了什么？ 编辑：我试图将过程导出到一个类，应该管理这些事情。

package argoseye.main

{     导入flash.events.Event;

import mx.collections.ArrayCollection;
import mx.messaging.ChannelSet;
import mx.messaging.channels.AMFChannel;
import mx.rpc.AsyncResponder;
import mx.rpc.AsyncToken;
import mx.rpc.events.FaultEvent;
import mx.rpc.events.ResultEvent;
import mx.rpc.remoting.RemoteObject;

public class Schem
{
    public var info:String=\"\";


    public function Schem()
    {       
    }

    public function loadCurrentSchem():void
    {
        var ro:RemoteObject = new RemoteObject(\"Hibernatetest\");
        ro.endpoint = \"http://jesus/blazeds/messagebroker/amf\";

        var token:AsyncToken = ro.getCells();
        token.addResponder(new AsyncResponder(onResult,onFault));

        info = info + \"Loader Called ...\";


    }

    public function onResult(event:ResultEvent,token:Object):void {
        var cellList:ArrayCollection = event.result as ArrayCollection;
        info = info + \"Resulthandler Called\";

    }

    public function onFault(event:FaultEvent,token:Object):void
    {

    }
    //Eventhandlers


    //Getters,Setters


}

} 如果我叫它，它不会到达事件处理程序。我的错误在哪里？     

解决方法

您的错误在于以下几行：

var token:AsyncToken = new AsyncToken();
token.addResponder(new AsyncResponder(onResult,onFault));
token = ro.getCells();

您正在第1行上创建一个新令牌。 您在第2行上分配响应者。 然后在第3行上重新分配令牌。 您在第3行上所做的实际上是在创建一个新令牌，因此它没有附加响应者，因为它是一个新实例。 因此应该是：

var token:AsyncToken = ro.getCells(); 
//ro.getCells() will return a new instance of AsyncToken
token.addResponder(new AsyncResponder(onResult,onFault));

    ,使用以下代码：

<fx:Script>
    <![CDATA[
        import argoseye.main.Golem;

        import mx.collections.ArrayCollection;
        import mx.rpc.AsyncResponder;
        import mx.rpc.AsyncToken;
        import mx.rpc.Responder;
        import mx.rpc.events.FaultEvent;
        import mx.rpc.events.InvokeEvent;
        import mx.rpc.events.ResultEvent;
        import mx.rpc.remoting.RemoteObject;
        protected function button1_clickHandler(event:MouseEvent):void
        {
            var ro:RemoteObject = new RemoteObject(\"destination\");
            ro.endpoint = \"http://Jesus/blazeds/messagebroker/amf\";
            ro.addEventListener(InvokeEvent.INVOKE,onInvoke);

            var token:AsyncToken = ro.getCells();
            token.addResponder(new AsyncResponder(onResult,onFault));
            textfeld.text = textfeld.text + \"Clickhandler called .... \\n\";

        }

        public function onResult(event:ResultEvent,token:Object):void {
            textfeld.text = textfeld.text + \"Resulthandler called .... \\n\";
            var cellList:ArrayCollection = event.result as ArrayCollection;

        }

        public function onFault(event:FaultEvent,token:Object):void
        {
            textfeld.text = textfeld.text + \"Faulthandler called .... \\n\";
        }

        public function onInvoke(event:InvokeEvent):void {
            textfeld.text = textfeld.text + \"Invokehandler called .... \\n\";
        }
    ]]>
</fx:Script>

<fx:Declarations>
    <!-- Place non-visual elements (e.g.,services,value objects) here -->
</fx:Declarations>
<s:Button x=\"1093\" y=\"575\" label=\"Button\" click=\"button1_clickHandler(event)\"/>
<s:TextArea x=\"1022\" y=\"183\" id=\"textfeld\"/>