发出 HTTPRequest 并获得响应 (Adobe Flex) [英] Making HTTPRequest and getting response (Adobe Flex)

问题描述

我尝试在 Adob​​e Flex (Actionscript) 中发出 HTTP 请求，如下所示:

Im trying to make a HTTP Request in Adobe Flex (Actionscript) as follows:

var p:PersonSearchController = new PersonSearchController();
showAlertDialog();
p.search(sc);
alert.cancel();

navigator.pushView(views.PersonSearchResults, +p.getResp());

所以基本上，在搜索之前我们会得到一个正在搜索..."警报对话框，一旦搜索完成，对话框就会消失，结果屏幕会被推到屏幕上...

So basically, before the search we get a "Searching..." AlertDialog box, once the search is complete, the dialog box disappears and the results screen is pushed onto the screen...

这里是搜索方法:

function search{
var requestSender:URLLoader= new URLLoader();

dispatcher.addEventListener(Event.COMPLETE, completeHandler);

var urlRequest :URLRequest = new URLRequest("http://airpoint05:8888/MPS2/PersonSearch");

var msg:String = "blah";

/* Setup HTTP Request */
urlRequest.data = msg;
urlRequest.contentType = "application/x-www-form-urlencoded";
urlRequest.method = URLRequestMethod.POST;
requestSender.load(urlRequest);
}

这里是 completeHandler 函数:

And here is the completeHandler function:

/* URL has completed and got a response */
private function completeHandler(event:Event):void
{
    var response:URLLoader = URLLoader(event.target);
    this.res = URLLoader(event.target).data;
    trace(this.res);
    response.close();   
}

当这一行被调用时:navigator.pushView(views.PersonSearchResults, +p.getResp());

When this line is called: navigator.pushView(views.PersonSearchResults, +p.getResp());

p.getResp() 什么都不是，因为响应还没有回来.我希望程序基本上阻塞，直到收到 HTTPResponse 以便我可以处理结果.目前，弹出窗口快速出现和消失，并且在后台搜索停止并发出请求......我得到了响应，但只有在结果屏幕被推出后.在我们有 HTTP 响应之前，如何阻止弹出窗口?

p.getResp() is nothing as the response hasn't came back yet. I want the program to basically block until the HTTPResponse is received so I can process the results. At the moment the Popup appear and disappears quickly, and in the background the search goes off and makes the request... I get the response but only after the results screen has been pushed out. How can I make the popup block until we have a HTTPresponse?

谢谢菲尔

推荐答案

不要为此使用 URLLoader，使用 HTTPService:

Don't use URLLoader for this, use HTTPService:

<fx:Script>
<![CDATA[
private function search(text:String):void
{
service.send({search:text}); // your service will receive the variable 'search' with your string
}

private function resultHandler(e:ResultEvent):void
{
var data:Object = e.result;
// do whatever else here
}
]]>
</fx:Script>
<s:HTTPService id="service" method="POST" url="http://airpoint05:8888/MPS2/PersonSearch" result="resultHandler" />

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