mx.rpc.http.mxml


Packagemx.rpc.http.mxml
Classpublic class HTTPService
InheritanceHTTPService Inheritance HTTPService Inheritance AbstractInvoker Inheritance EventDispatcher Inheritance Object
ImplementsIMXMLSupport, IMXMLObject
Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

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You use the <mx:HTTPService> tag to represent an HTTPService object in an MXML file. When you call the HTTPService object'ssend() method, it makes an HTTP request to the specified URL, and an HTTP response is returned. Optionally, you can pass parameters to the specified URL. When you do not go through the server-based proxy service, you can use only HTTP GET or POST methods. However, when you set the useProxy property to true and you use the server-based proxy service, you can also use the HTTP HEAD, OPTIONS, TRACE, and DELETE methods.
Note: Due to a software limitation, HTTPService does not generate user-friendly error messages when using GET.
MXML SyntaxexpandedHide MXML Syntax
The <mx:HTTPService> tag accepts the following tag attributes:
<mx:HTTPService
 Properties
 concurrency="multiple|single|last"
 contentType="application/x-www-form-urlencoded|application/xml"
 destination="DefaultHTTP"
 id="No default."
 method="GET|POST|HEAD|OPTIONS|PUT|TRACE|DELETE"
 resultFormat="object|array|xml|e4x|flashvars|text"
 showBusyCursor="false|true"
 makeObjectsBindable="false|true"
 url="No default."
 useProxy="false|true"
 xmlEncode="No default."
 xmlDecode="No default."
 
 Events
 fault="No default."
 result="No default."
 />
The <mx:HTTPService> tag can have a single <mx:request> tag under which the parameters can be specified.






Related API Elements

mx.rpc.http.HTTPService






mx.validators.Validator
mx.managers.CursorManager

Public Properties

Method
Defined By
      HTTPService(rootURL:String = null, destination:String = null)
Creates a new HTTPService.
HTTPService
      initialized(document:Object, id:String):void
 Called after the implementing object has been created and all      component properties specified on the MXML tag have been     initialized.
HTTPService
Public Constants
Constructor Detail

HTTPService

()Constructor
public function HTTPService(rootURL:String = null, destination:String = null)
Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1

Creates a new HTTPService. This constructor is usually called by the generated code of an MXML document. You usually use the mx.rpc.http.HTTPService class to create an HTTPService in ActionScript.
Parameters
rootURL:String (default = null) — The URL the HTTPService should use when computing relative URLS.
 
destination:String (default = null) — An HTTPService destination name in the service-config.xml file.
Method Detail

initialized

()method
public function initialized(document:Object, id:String):void
Language Version: ActionScript 3.0
Product Version: Flex 3
Runtime Versions: Flash Player 9, AIR 1.1


Called after the implementing object has been created and all component properties specified on the MXML tag have been initialized. If you create this class in ActionScript and want it to function with validation, you must call this method and pass in the MXML document and the HTTPService's id.
Parameters
document:Object — The MXML document that created this object.
 
id:String — The identifier used by document to refer to this object. If the object is a deep property on document, id is null.
Examples How to use this example
HTTPServiceExample.mxml
<?xml version="1.0" encoding="utf-8"?>
<!-- Simple example to demonstrate the HTTPService tag. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
     xmlns:s="library://ns.adobe.com/flex/spark" 
     xmlns:mx="library://ns.adobe.com/flex/mx"
    creationComplete="feedRequest.send();">
        
        <!-- The url property specifies the location of the requested file, 
        in this case the RSS 2.0 feed of Matt Chotin's blog. 
        As of this writing, the URL was still valid, but you should 
        check to make sure it hasn't changed. 
        You should use the latest RSS 2.0 URL listed on the right side of 
        the blog at http://www.adobe.com/go/mchotinblog. -->
        
    
    <fx:Declarations>
        <mx:HTTPService 
            id="feedRequest" 
            url="http://weblogs.macromedia.com/mchotin/index.xml" 
            useProxy="false" />
    </fx:Declarations>
        
    <mx:Panel title="HTTPService Example" height="75%" width="75%" 
        paddingTop="10" paddingBottom="10" paddingLeft="10" paddingRight="10">
            
        <mx:DataGrid id="dgPosts" height="50%" width="75%" 
            dataProvider="{feedRequest.lastResult.rss.channel.item}">
            <mx:columns>
                <mx:DataGridColumn headerText="Posts" dataField="title"/>
                <mx:DataGridColumn headerText="Date" dataField="pubDate"/>
            </mx:columns>
        </mx:DataGrid>
            
        <mx:TextArea height="50%" width="75%" htmlText="{dgPosts.selectedItem.description}"/>
    </mx:Panel>    
</s:Application>

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