MACROMEDIA FLEX-GETTING STARTED WITH FLEX Instrukcja Użytkownika Pobierz pdf (Strona 85)

POSTing to the Server with Flex

In this example, I’ll post a simple subscription form to the

server. The Flex code for the interface appears in Example 5-1.

Example 5-1. Form.mxml

<?xml version="1.0" encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"

layout="absolute">

<mx:HTTPService id="srv" url="http://localhost/formtest.php"

method="POST"

result="mx.controls.Alert.show

(srv.lastResult.toString());">

<mx:request>

<first>{first.text}</first>

<email>{email.text}</email>

</mx:request>

</mx:HTTPService>

<mx:Form>

<mx:FormItem label="First Name">

<mx:TextInput id="first"/>

</mx:FormItem>

<mx:FormItem label="Last Name">

<mx:TextInput id="last"/>

</mx:FormItem>

<mx:FormItem label="Email">

<mx:TextInput id="email"/>

</mx:FormItem>

<mx:FormItem>

<mx:Button label="Subscribe" click="srv.send()"/>

</mx:FormItem>

</mx:Form>

</mx:Application>

This is pretty straightforward stuff. At the bottom of the ap-

plication file is a big form tag that has all of the fields and the

Subscribe button. At the top of the file is the definition for the

HTTP service that will be called when the user clicks the Sub-

scribe button.

The server code, shown in Example 5-2, is equally straightfor-

ward.

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