Question

在哪里可以找到实现由AsyncToken和AsyncResponder异步调用的HTTPService的Flex应用程序示例？提前致谢

httpservice以一定的频率发送这样的字符串：

行＃列＃号＃行＃列＃号＃行＃列＃号＃....

编辑代码：

<?xml version="1.0" encoding="utf-8"?>
<mx:Application creationComplete="onCreationComplete()" 
xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
<![CDATA[
    import mx.rpc.remoting.RemoteObject;
    import mx.rpc.events.ResultEvent;
    import mx.rpc.events.FaultEvent;
    import mx.rpc.http.mxml.HTTPService;
    import mx.rpc.AsyncRequest;
    import mx.rpc.AsyncResponder;
    import mx.rpc.AsyncToken;
    import mx.collections.ArrayCollection;
    import mx.controls.advancedDataGridClasses.AdvancedDataGridColumn;
    import mx.controls.AdvancedDataGrid;
    import mx.controls.Alert;
    import mx.rpc.IResponder;


    [Bindable]
    public var dataList:ArrayCollection;

    public function getResults(source:String) : ArrayCollection {
    var ac:ArrayCollection = new ArrayCollection();
    var data:Array = source.split('#');
    for (var i:int = 0; i < data.length; i += 3) {
    var dataObj:Object = {row: data[i], column: data[i+1], value: data[i+2]};     
    ac.addItem(dataObj)
    }

    return ac;
    }
    public function result(event:ResultEvent):void{
    dataList = getResults( String(event.result) );
    }
    public function fault(event:FaultEvent) : void {
    dataList = getResults(String(event.fault)); 
    }

public function onCreationComplete():void
{
var service:HTTPService = new HTTPService();
service.url = "http://10.15.20.75/server4flex/servlet/Datagen";
service.resultFormat = "text";
var token:AsyncToken = service.send(dataList);
token.addResponder(new mx.rpc.Responder(result, fault));
}

]]>
</mx:Script>
<mx:AdvancedDataGrid id="dg"
dataProvider="{result}"  
liveScrolling="true"  
    x="10" y="10" width="621"
    verticalScrollPolicy="on"
 >
        <mx:columns>
                    <mx:AdvancedDataGridColumn dataField="row"
           headerText="Riga"/>
                    <mx:AdvancedDataGridColumn dataField="column"
           headerText="Colonna"/>
                    <mx:AdvancedDataGridColumn dataField="value" 
           headerText="Valore"/>
        </mx:columns>
 </mx:AdvancedDataGrid>

 </mx:Application>

Answer 1

我不知道你在照顾什么，但here或here是使用AsyncToken和AsyncResponder

的方法

修改

您的dataList必须是Bindable

不要在每次循环迭代中设置dataList

在结果准备就绪时，您必须在某个时刻给您打电话getResults
{li} event result函数中的Event是ResultEvent，还有result，其中包含您的数据的[Bindable] public var dataList:ArrayCollection; public function getResults(source:String) : ArrayCollection { var ac:ArrayCollection = new ArrayCollection(); var data:Array = source.split('#'); for (var i:int = 0; i < data.length; i += 3) { ac.addItem( {row: data[i], column: data[i+1], value: data[i+2]} ); } return ac; } private function result(event:ResultEvent) : void { dataList = getResults( String(event.result) ); }字段
这可能看起来像这样（未经测试）：

<?xml version="1.0" encoding="utf-8"?> <mx:Application creationComplete="onCreationComplete()" xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:Script> <![CDATA[ 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.http.mxml.HTTPService; [Bindable] public var dataList : ArrayCollection; public function getResults(source : String) : ArrayCollection { var ac : ArrayCollection = new ArrayCollection(); var data : Array = source.split('#'); for (var i : int = 0; i < data.length; i += 3) { var dataObj : Object = {row: data[i], column: data[i + 1], value: data[i + 2]}; ac.addItem(dataObj) } return ac; } public function result(event : ResultEvent) : void { dataList = getResults(String(event.result)); } public function fault(event : FaultEvent) : void { //here do whatever you want to manage the error you received } public function onCreationComplete() : void { var service : HTTPService = new HTTPService(); service.url = "http://127.0.0.1/getDatas.php"; service.resultFormat = "text"; var token : AsyncToken = service.send(); token.addResponder(new mx.rpc.Responder(result, fault)); } ]]> </mx:Script> <mx:AdvancedDataGrid id="dg" dataProvider="{dataList}" liveScrolling="true" x="10" y="10" width="621" verticalScrollPolicy="on" > <mx:columns> <mx:AdvancedDataGridColumn dataField="row" headerText="Riga"/> <mx:AdvancedDataGridColumn dataField="column" headerText="Colonna"/> <mx:AdvancedDataGridColumn dataField="value" headerText="Valore"/> </mx:columns> </mx:AdvancedDataGrid> </mx:Application>

<强> EDIT2 ：

这是一个使用简单的php文件来获取在本地Web服务器上运行的数据的工作示例。

Flex部分

<?php print "1#c1#v1#2#c2#v2#3#c3#v3"?>

Php part（getDatas.php）

{{1}}

Answer 2

private function onCreationComplete():void
{
    var service:HTTPService = new HTTPService();
    service.url = "http://www.google.com";
    service.resultFormat = "text";
    var token:AsyncToken = service.send();
    token.addResponder(new mx.rpc.Responder(result, fault));
}

private function result(event:Event):void
{
    trace(1, event);
}

private function fault(event:Event):void
{
    trace(2, event);
}

找到here。

HTTPService AsyncToken和AsyncResponder示例

2 个答案: