Apache flex 如何在外部类中实现RemoteObject？

代码如下：

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";
        ro.addEventListener(ResultEvent.RESULT,onResult);
        ro.getCells();
        info = info + "Loader called ... \n";




    }

    public function onResult(event:ResultEvent):void
    {
        var array:ArrayCollection = event.result as ArrayCollection;
        info = info + "Schemlength = " + String(array.length)+ "\n";
    }


    private function onFault(event:FaultEvent):void
    {
        info = info + "Errorhandler Called";
    }
    //Eventhandlers


    //Getters, Setters
}

不幸的是，当我调用loadCurrentSchem（）函数时，它没有到达eventHandler。怎么了

我是这样称呼这个班的：

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

        import mx.collections.ArrayCollection;
        import mx.rpc.AsyncToken;
        import mx.rpc.Responder;
        import mx.rpc.events.FaultEvent;
        import mx.rpc.events.ResultEvent;
        import mx.rpc.remoting.RemoteObject;

        protected function button1_clickHandler(event:MouseEvent):void
        {
            var schem:Schem = new Schem();
            schem.loadCurrentSchem();
            textfeld.text = schem.info;
        }

    ]]>
</fx:Script>

---

这里。

问题是您没有正确地确保结果处理程序调用正确。问题是，当您使用：

textfeld.text = schem.info;

您已经设置了以下值：

info = info + "Loader called ... \n";

作为文本字段的文本，此值在结果处理程序中不会更改

您至少可以通过两种方式解决此问题：

• 从

  EventDispatcher

  扩展您的

  Schem

  类，并将事件元数据放在那里

班级：

[Event(name="result", type="mx.rpc.events.ResultEvent")]
[Event(name="fault", type="mx.rpc.events.FaultEvent")]
public class Schem extends EventDispatcher
{
    public var info:String="";      

    public function Schem()
    {
    }

    public function loadCurrentSchem():void
    {
        var ro:RemoteObject = new RemoteObject("Hibernatetest");
        ro.endpoint = "http://Jesus/blazeds/messagebroker/amf";
        ro.addEventListener(ResultEvent.RESULT,onResult);
        ro.addEventListener(FaultEvent.FAULT,onFault);
        ro.getCells();
        info += "Loader called ... \n";




    }

    private function onResult(event:ResultEvent):void
    {
        var array:ArrayCollection = event.result as ArrayCollection;
        info += "Schemlength = " + String(array.length)+ "\n";
        dispatchEvent(event);
    }


    private function onFault(event:FaultEvent):void
    {
        info += "Errorhandler Called";
        dispatchEvent(event);
    }
    //Eventhandlers


    //Getters, Setters
}

然后在MXML类中：

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

        import mx.collections.ArrayCollection;
        import mx.rpc.AsyncToken;
        import mx.rpc.Responder;
        import mx.rpc.events.FaultEvent;
        import mx.rpc.events.ResultEvent;
        import mx.rpc.remoting.RemoteObject;

        protected function button1_clickHandler(event:MouseEvent):void
        {
            var schem:Schem = new Schem();
            schem.addEventListener(ResultEvent.RESULT,onResult);
            schem.addEventListener(FaultEvent.FAULT,onFault);
            schem.loadCurrentSchem();
            textfeld.text = schem.info;

        }

    private function onResult(event:ResultEvent):void
    {
        textfeld.text = event.currentTarget.info;
    }

    private function onFault(event:FaultEvent):void
    {
        textfeld.text = event.currentTarget.info;
    }
    ]]>
</fx:Script>

在MXML中：

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

        import mx.collections.ArrayCollection;
        import mx.rpc.AsyncToken;
        import mx.rpc.Responder;
        import mx.rpc.events.FaultEvent;
        import mx.rpc.events.ResultEvent;
        import mx.rpc.remoting.RemoteObject;

        [Bindable]
        private var schem:Schem;

        protected function button1_clickHandler(event:MouseEvent):void
        {
            schem = new Schem();
            schem.loadCurrentSchem();
        }

    ]]>
</fx:Script>
<s:Label id="textfeld" text="{schem.info}" />

---

希望这有帮助！：）

你确定你的终点被击中了吗？是的。原因有二。第一：这段代码在应用程序脚本标记中工作得很好，第二：BlazeDS控制台计算成功调用的次数。您是否也尝试订阅

fault

事件？也许结果处理程序不调用是因为某些错误，而您根本不听？只是这样做了，正如预期的那样，什么也没有。我不明白其中的区别…它应该在serpate类中工作，对吗？将来使用调试器断点或

trace（）

语句来确保某个方法是否正在调用：）确实有帮助。使用您的方法，我发现我的类的功能相当强大，问题是将结果传递给其他类。我将尝试一种不同的方法来做到这一点。（有约束力）

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

        import mx.collections.ArrayCollection;
        import mx.rpc.AsyncToken;
        import mx.rpc.Responder;
        import mx.rpc.events.FaultEvent;
        import mx.rpc.events.ResultEvent;
        import mx.rpc.remoting.RemoteObject;

        [Bindable]
        private var schem:Schem;

        protected function button1_clickHandler(event:MouseEvent):void
        {
            schem = new Schem();
            schem.loadCurrentSchem();
        }

    ]]>
</fx:Script>
<s:Label id="textfeld" text="{schem.info}" />