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HttpService 传递参数的方法

2010-02-09 10:33 489 查看

1 使用 URLVariables:

例如:

flex 端

var httpService:HTTPService=new HTTPService();
var params:URLVariables=new URLVariables();
params.test_id=sTestId;
params.password=sPassword;
httpService.url=sServerHostUrl_ + TEST_STUDENT_URL;
httpService.method=HTTP_SENT_POST;
httpService.resultFormat=HTTPService.RESULT_FORMAT_E4X;
httpService.addEventListener(HTTP_RESULT_METHOD, getHttpResultByIDAndPass);
httpService.addEventListener(HTTP_RESULT_FAULT, httpFault);
httpService.send(params);

服务端:

接受参数: test_id password.

2 使用flex 本身.

用actionscript给服务器请求添加参数难免会很麻烦，使用mx:request标签就可以解决这一问题，可以把他
嵌套到HTTPService标签中实现参数的提交。如下例所示：

flex:

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

private function goLogin():void
{
login.send();
}

private function resultHandler(event:ResultEvent):void
{
Alert.show(event.result.toString());
}
]]>
</mx:Script>
<mx:HTTPService id="login"
method="POST"
showBusyCursor="true"
url="http://localhost/php/login.php"
result="resultHandler(event)">

<mx:request xmlns="">
<mx:username>
{username.text}
</mx:username>
<mx:userpwd>
{userpwd.text}
</mx:userpwd>
</mx:request>

或者:

<mx:request >
<username>
{username.text}
</username>
<userpwd>
{userpwd.text}
</userpwd>
</mx:request>


</mx:HTTPService>
<mx:Panel width="310"
height="265"
layout="absolute"
title="登录"
fontSize="12"
fontWeight="normal"
x="296"
y="153">
<mx:TextInput x="93"
y="51"
id="username"
fontSize="12"/>
<mx:TextInput x="92"
y="95"
id="userpwd"
fontSize="12"
displayAsPassword="true"/>
<mx:Button x="73"
y="154"
label="登录"
id="btn1"
click="goLogin()"
fontWeight="normal"
fontSize="12"/>
<mx:Label x="32"
y="53"
text="用户名："
fontSize="12"/>
<mx:Label x="43"
y="97"
text="密码："
fontSize="12"/>
<mx:Button x="154"
y="154"
label="注册"
fontSize="12"
fontWeight="normal"
id="btn2"/>
<mx:Label x="10"
y="10"
text="测试用用户名 User 密码 123456"
fontSize="12"
width="243"/>
</mx:Panel>
</mx:Application>

php 服务端:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>flex login</title>
</head>

<body>
<?php
$return="";
if(isset($_POST[username]) && isset($_POST[userpwd])){
if ("User"==$_POST[username] && "123456"==$_POST[userpwd])
$return="ok";
else
$return="error";
}
$xml_return = '<users>';
$xml_return.= '<a>'.$return.'</a>';
$xml_return.= '</users>';
echo $xml_return;

?>
</body>
</html>

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