Flex调用Servlet的例子

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MXML代码

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
<![CDATA[
import mx.controls.Alert;
import mx.rpc.events.ResultEvent;
import mx.rpc.events.FaultEvent;
import mx.rpc.Fault;

private function call():void{
jspServlet.request.param = "hello"; //向request中赋上一个名为param的属性，值是hello
jspServlet.send();
}

private function resultHandler(event:ResultEvent):void{
txt1.text = event.result as String;
}

private function faultHandler(event:FaultEvent):void{
var fault:Fault = event.fault;
var s : String = (fault.faultDetail != null)? fault.faultDetail : fault.faultString;
Alert.show(s);
}
]]>
</mx:Script>
<mx:HTTPService id="jspServlet" method="POST" useProxy="false" resultFormat="text" url="./jspServlet"
fault="faultHandler(event)"
result="resultHandler(event)"
showBusyCursor="true"/>
<mx:Button x="27" y="28" useHandCursor="true" buttonMode="true" label="Load" click="call()"/>
<mx:TextArea x="27" y="58" width="450" height="143" id="txt1"/>
</mx:Application>

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