Apache flex 什么'；flex3中LoadVars的等效值是多少？

如何在Flex3中执行上述操作

更新

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如何使用

urloader

？

和HTTPService一起使用

    var lv = new LoadVars();
    var r = new LoadVars();
    lv.action = "update";
            r.onLoad = function(success) 
    {
                //do further logic here
            }
    lv.sendAndLoad("http://example.net/service.php", r, "POST");

使用URLLoader

var vo:Object = new Object;
    vo.action = "update";
    s = new HTTPService();
    s.url = "http://example.net/service.php"
    s.method = "POST";
    s.resultFormat = "e4x"; //or xml or whatever
    s.send(vo);
    s.addEventListener(ResultEvent.RESULT,onLoad);

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如何使用URLLoader？

var loader:URLLoader = new URLLoader();
var request:URLRequest = new URLRequest("url here");
var vars:URLVariables = new URLVariables();     
vars.action = "update";
request.data = vars;
request.method = URLRequestMethod.POST;
loader.load(request);
loader.addEventListener(Event.COMPLETE,onComplete);