flex与amfphp通信

package lalo
{
import Connection;
import .ObjectEncoding;
public class RemotingConnection extends NetConnection
{
//构造函数
public function RemotingConnection(sURL:String)
{
objectEncoding=ObjectEncoding.AMF3;
if(sURL)
{
connect(sURL);//link to the server
}
}
public function AppendToGatewayUrl(s:String):void
{
//追加网关参数
}
}
}
以上是一个类，以下是主程序：
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="/2006/mxml"
layout="absolute" creationComplete="initApp()">
<mx:Script>
<![CDATA[
import mx.controls.Alert;
import lalo.RemotingConnection;
import .Responder;
//声明一个RemotingConnection远程连接对象
public var gateway:RemotingConnection;
//初始化
public function initApp():void
{
gateway=new
RemotingConnection("http://localhost/amfphp/gateway.php");
//这里使用localhost,访问时也应该是http://localhost/;如果使用127.0.0.1，访问就使用http://127.0.0.1
gateway.call("municationTest",new
Responder(onResult,onFault));
}
//返回结果
public function onResult(result:Object):void
{
Alert.show(result.toString());
//Alert.show("ok");
}
//捕获异常
public function onFault(fault:Object):void
{
Alert.show("dd");
//trace(fault);
//Alert.show("no");
//trace(fault);
}
]]>
</mx:Script>
</mx:Application>
municationTest：sample为afmphp->services里的文件名；qq为类名
<?php
class qq
{
function communicationTest()
{
return 1;
}
}
?>
以下程序直接在主程序里连接amfphp:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="/2006/mxml"> <mx:TextArea id="amfphptest" width="200"/>
<mx:Button label="call amfphp" click="callAmfPHP(amfphptest.text)" />
<mx:Script>
<![CDATA[
import .Responder;
import Connection;
import mx.controls.Alert;
private var gateway_url:String =http://localhost/amfphp/gateway.php"; //网关地址
private var geteway_conn:NetConnection = new NetConnection();
//网络链接对象，有点像数据库里的连接对象
//处理结果响应的，Responder，2个参数回调(callback)函数,第一个正确结果响应，后面第2个参数可选，响应错误状态,str是要传的参数，多个参数可以继续加，以逗号隔开public function callAmfPHP(str:String):void
{
geteway_conn.connect(gateway_url);
geteway_conn.call("HelloWorld.say", new Responder(onResult,
onFault), str);
//调用amp服务器端的HelloWorld类的eb163say方法
}
private function onResult(result:Object):void//获得反馈结果成功时 {
amfphptest.text = result.toString();
}
private function onFault(fault:String):void//获得反馈结果失败时
{
amfphptest.text = fault;
}
]]>
</mx:Script>
</mx:Application>
HelloWorld.say:类，存放在services下面
<?php
class HelloWorld
{
public function say($sMessage)
{
return ' say: welcome,' . $sMessage;
}
}
?>。