Pacote | mx.rpc.http.mxml |
Classe | public class HTTPService |
Herança | HTTPService HTTPService AbstractInvoker EventDispatcher Object |
Implementações | IMXMLSupport, IMXMLObject |
Versão da linguagem: | ActionScript 3.0 |
Versão de produto: | Flex 3 |
Versões de runtime: | Flash Player 9, AIR 1.1 |
<mx:HTTPService>
tag to represent an
HTTPService object in an MXML file. When you call the HTTPService object's
send()
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.
Sintaxe MXMLOcultar sintaxe MXMLThe <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.
Elementos da API relacionados
Método | Definido por | ||
---|---|---|---|
Creates a new HTTPService. | HTTPService | ||
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registra um objeto de ouvinte de evento em um objeto EventDispatcher, de forma que o ouvinte receba a notificação de um evento. | EventDispatcher | ||
[substituir]
Cancels the last service invocation or an invokation with the specified ID. | HTTPService | ||
[substituir]
Sets the result property of the invoker to null. | HTTPService | ||
Disconnects the service's network connection. | HTTPService | ||
Envia um evento para o fluxo de eventos. | EventDispatcher | ||
Verifica se o objeto EventDispatcher tem ouvintes registrados para um tipo específico de evento. | EventDispatcher | ||
Indica se um objeto tem uma propriedade especificada definida. | Object | ||
Called after the implementing object has been created and all
component properties specified on the MXML tag have been
initialized. | HTTPService | ||
Indica se uma ocorrência da classe Object está na cadeia de protótipos do objeto especificado como o parâmetro. | Object | ||
Logs the user out of the destination. | HTTPService | ||
Indica se a propriedade especificada existe e é enumerável. | Object | ||
Remove um ouvinte do objeto EventDispatcher. | EventDispatcher | ||
Executes an HTTPService request. | HTTPService | ||
Sets the credentials for the destination accessed by the service. | HTTPService | ||
Define a disponibilidade de uma propriedade dinâmica para operações de repetição. | Object | ||
The username and password to authenticate a user when accessing
the HTTP URL. | HTTPService | ||
This hook is exposed to update the lastResult property. | AbstractInvoker | ||
Retorna a representação da string deste objeto, formatado segundo as convenções específicas para a localidade. | Object | ||
Retorna a representação de string do objeto especificado. | Object | ||
Retorna o valor primitivo do objeto especificado. | Object | ||
Verifica se um ouvinte de evento está registrado nesse objeto EventDispatcher ou em qualquer um de seus ancestrais para o tipo de evento especificado. | EventDispatcher |
HTTPService | () | Construtor |
public function HTTPService(rootURL:String = null, destination:String = null)
Versão da linguagem: | ActionScript 3.0 |
Versão de produto: | Flex 3 |
Versões de runtime: | 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.
ParâmetrosrootURL: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.
|
initialized | () | método |
public function initialized(document:Object, id:String):void
Versão da linguagem: | ActionScript 3.0 |
Versão de produto: | Flex 3 |
Versões de runtime: | 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
.
Parâmetros
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.
|
<?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>
Wed Jun 13 2018, 11:10 AM Z