FlexRest下載 - FlexRest源代碼下載

有幾種自定義的序列化濾鏡可以使您的生活更輕鬆（需要Flex 4）。

CompositeserializationFilter

HTTP序列化過濾器的複合設計模式實現。使用不同的濾波器實例覆蓋5個序列化濾波器的方法中的任何一種：

 <mx:HTTPService>
	<mx:serializationFilter>
		<rest:CompositeSerializationFilter>
			<!-- Serialize requests in JSON -->
			<rest:bodySerializer>
				<rest:JSONSerializationFilter />
			</rest:bodySerializer>
			<!-- Deserialize replies in JSON -->
			<rest:resultDeserializer>
				<rest:JSONSerializationFilter />
			</rest:resultDeserializer>
			<!-- Build REST-style URLs dynamically -->
			<rest:urlSerializer>
				<rest:RESTSerializationFilter />
			</rest:urlSerializer>
			<!-- Use custom HTTP methods -->
			<rest:parametersSerializer>
				<rest:RESTSerializationFilter />
			</rest:parametersSerializer>
			<!-- Set request content type to application/json -->
			<rest:contentTypeProvider>
				<rest:RESTSerializationFilter requestContentType="application/json" />
			</rest:contentTypeProvider>
		</rest:CompositeSerializationFilter>
	</mx:serializationFilter>
</mx:HTTPMultiService>

可以超越的SerializationFilter方法：

deserializeResult
getRequestContentType
serializeParameters
serializeBody
serializeURL

使用常規序列化窗口處理未覆蓋的方法。

靜止化窗口

實現serializeParameters ， contentTypeProvider和serializeURL方法。

允許您發送自定義的HTTP動詞，除了獲取或發布以外，默認情況下，Flash Player不支持。您可以指定這樣做的三種可能的方法之一：

將其發送到X- HTTP -Method-override標頭中（ methodOverride="header" ）。不要忘記更新您的crossdomain.xml文件以允許將標題發送到其他域。
將_method參數附加到所有URL（ methodOverride="url" ）。
將其作為_method參數（ methodOverride="variable" ）發送請求主體。這將迫使您的請求被序列化為application/x-www-form-urlencoded 。

該序列化過濾器也可用於構建引起令牌化參數（封閉在方括號中）的動態URL。

 <fx:Declarations>
	<rest:RESTSerializationFilter 
		id="restSerializer" 
		methodOverride="variable"
		requestContentType="application/x-www-form-urlencoded" />
	<mx:HTTPMultiService
		id="service"
		baseURL="http://example.com/api/"	
	>
		<mx:serializationFilter>
			<!-- contentTypeProvider is required in order to convert custom HTTP verbs to POST 
			and to set content type to 'application/x-www-form-urlencoded'. -->
			<!-- urlSerializer will replace square bracket tokens in URLs. -->
			<!-- parametersSerializer will add a '_method' variable to your requests, if needed. -->
			<rest:CompositeSerializationFilter 
				contentTypeProvider="{restSerializer}" 
				urlSerializer="{restSerializer}"
				parametersSerializer="{restSerializer}" />
		</mx:serializationFilter>		
		<mx:operationList>
			<!-- 
				[ID] and any other token will be automatically 
				replaced by variables from operation arguments object 
			-->
			<mx:HTTPOperation
				name="getUser"
				url="User/[ID]" />			
			<!--
				Request will be sent as a POST request
				with a "_method"="DELETE" variable
			-->
			<mx:HTTPOperation
				name="deleteUser"
				url="User/[ID]"
				method="DELETE" />
		</mx:operationList>
	</mx:HTTPMultiService>
</fx:Declarations>

 import mx.rpc.AbstractOperation;
import mx.rpc.AsyncToken;
		
import vo.User;
		
private function getUser(userId:uint):AsyncToken
{
	var operation:AbstractOperation = service.getOperation("getUser");
	operation.arguments = { ID: userId }; //replace URL tokens
			
	return operation.send();
	//You can also add your variable to requests:
	//return operation.send({ varname: "varvalue" });
}

jsonserializationFilter

實現deserializeResult ， contentTypeProvider和serializeBody方法。

使用快速的本機JSON Parser（僅在FP11版本中； FP9版本依賴AS3Corelib的JSON Parser），在JSON中序列化並進行序列化答复。請求和答复可以從即時轉換為強大的物體。可用以下對象映射功能：

傳入的數組可以映射到強大的矢量或鍵入對象的陣列。
ArrayElementType metatag可用於映射鍵入對象的數組。
在請求和響應中都尊重Transient元素。
JSON格式/Date(1325376000000)/可以將日期字符串轉換為Date對象，反之亦然。

例如，當您收到此內容時：

 {
	"owner":{
		"birthday":"/Date(1325376000000)/",
		"firstName":"John",
		"lastName":"Smith"
	}
	"wheels":[
		{ "position": { "x":1, "y":1 } },
		{ "position": { "x":1, "y":-1 } },
		{ "position": { "x":-1, "y":1 } },
		{ "position": { "x":-1, "y":-1 } }
	]
}

它可以轉換為以下：

 public class User
{
	public var birthday:Date;		
	public var firstName:String;		
	public var lastName:String;
}	
public class Car
{
	public var owner:User;
	[ArrayElementType("vo.Wheel")] 
	public var wheels:Array;	
	//You can just use vectors instead
	//public var wheels:Vector.<Wheel>
}
import flash.geom.Point;
public class Wheel
{
	public var position:Point;
}

使用以下代碼：

 <fx:Declarations>
	<mx:HTTPMultiService
		id="service"
		baseURL="http://example.com/api/"	
	>
		<mx:serializationFilter>
			<rest:CompositeSerializationFilter>
				<!-- Serialize requests from objects to JSON. -->
				<rest:bodySerializer>
					<rest:JSONSerializationFilter />
				</rest:bodySerializer>
				<!-- Deserialize replies from JSON to strongly-typed objects. -->
				<rest:resultDeserializer>
					<rest:JSONSerializationFilter />
				</rest:resultDeserializer>
				<!-- Forces requests content type to be 'application/json'.
				     This is required in order to encode requests in JSON.
				     If content type is not changed either this way, 
				     or manually on an operation, Flex will handle 
				     request body encoding by itself. -->
				<rest:contentTypeProvider>
					<rest:RESTSerializationFilter requestContentType="application/json" />
				</rest:contentTypeProvider>
				<!-- This serializer is required for JSON requests. -->
				<rest:parametersSerializer>
					<rest:RESTSerializationFilter />
				</rest:parametersSerializer>
			</rest:CompositeSerializationFilter>
		</mx:serializationFilter>		
		<mx:operationList>
			<!-- 
				Note that there is a resultElementType
				property set on the operation
			-->
			<mx:HTTPOperation
				name="getCar"
				url="Car/[ID]"
				method="GET"
				resultElementType="{Car}"
				result="onCarLoaded(event)" />
		</mx:operationList>
	</mx:HTTPMultiService>
</fx:Declarations>

 import mx.rpc.events.ResultEvent;
		
import vo.Car;
import vo.User;
import vo.Wheel;
		
private function onCarLoaded(event:ResultEvent):void
{
	var car:Car = Car(event.result);
	var wheels:Vector.<Wheel> = car.wheels;
			
	var owner:User = car.owner;
	var birthday:Date = owner.birthday;
}

如果您有各種各樣的對象…

 [
	{ "x":1, "y":5 },
	{ "x":2, "y":4 },
	{ "x":3, "y":3 },
	{ "x":4, "y":2 },
	{ "x":5, "y":1 }
]

…您可以通過設置resultFormat="array"和resultElementType="{ElementClass}"來接收它作為強大的對象的數組。默認情況下，所有數組都包裹在ArrayCollection中。為避免這種行為，只需在操作實例上設置makeObjectsBindable="false" 。

 <mx:HTTPOperation
	name="getPoints"
	url="Points/[FROM]/[TO]"
	resultFormat="array"
	makeObjectsBindable="false"
	resultElementType="{Point}"
	result="onPointsLoaded(event)" />

 private function onPointsLoaded(event:ResultEvent):void
{
	trace(event.result.length);
	
	for each(var point:Point in event.result)
		trace(point.x + point.y);
}

JSONSerializationFilter是處理類型轉換的抽象TypedSerializationFilter濾波器的實現，而具體的子類則處理實際數據序列化和避免化。

將resultFormat設置為任何其他值，除了array和object （默認值）將導致在所選的HTTPOperation中抑制JSONSerializationFilter （或任何其他TypedSerializationFilter ）。

XMLSerializationFilter

實現deserializeResult ， contentTypeProvider和serializeBody方法。

與JSONSerializationFilter相同的方式。您可以使用可選的xmlEncode和xmlDecode屬性來分配自定義序列化方法：

 <mx:HTTPService>
	<mx:serializationFilter>
		<rest:CompositeSerializationFilter>
			<!-- Serialize requests from objects to XML. -->
			<rest:bodySerializer>
				<rest:XMLSerializationFilter xmlEncode="{doXmlEncode}" />
			</rest:bodySerializer>
			<!-- Deserialize replies from XML to strongly-typed objects. -->
			<rest:resultDeserializer>
				<rest:XMLSerializationFilter xmlDecode="{doXmlDecode}" />
			</rest:resultDeserializer>
			<!-- Forces requests content type to be 'application/xml'. -->
			<rest:contentTypeProvider>
				<rest:RESTSerializationFilter requestContentType="application/xml" />
			</rest:contentTypeProvider>
			<!-- This serializer is required for XML requests. -->
			<rest:parametersSerializer>
				<rest:RESTSerializationFilter />
			</rest:parametersSerializer>
		</rest:CompositeSerializationFilter>
	</mx:serializationFilter>
</mx:HTTPMultiService>

 private function doXmlEncode(body:Object):XMLNode
{
	return new XMLNode(1, '<body id="' + body.id + '"/>');
}

private function doXmlDecode(node:XMLNode):Object
{
	return { id: node.attributes.id };
}

基本義務式縮寫

使用兩個新屬性擴展了CompositeSerializationFilter ： username和password 。將在所有請求中添加基本的HTTP身份驗證標頭。

 <mx:HTTPService>
	<mx:serializationFilter>
		<rest:BasicAuthenticationSerializationFilter username="admin" password="qwerty">
			<rest:bodySerializer>
				<rest:XMLSerializationFilter />
			</rest:bodySerializer>
			<rest:resultDeserializer>
				<rest:XMLSerializationFilter />
			</rest:resultDeserializer>
			<rest:contentTypeProvider>
				<rest:RESTSerializationFilter requestContentType="application/xml" />
			</rest:contentTypeProvider>
			<rest:parametersSerializer>
				<rest:RESTSerializationFilter />
			</rest:parametersSerializer>
		</rest:BasicAuthenticationSerializationFilter>
	</mx:serializationFilter>
</mx:HTTPMultiService>

OauthserializationFilter

擴展CompositeSerializationFilter 。可用於創建並為您的請求分配OAuth標頭。

 <mx:HTTPService>
	<mx:serializationFilter>
		<rest:OAuthSerializationFilter id="oauthFilter" keySecret="kAcSOqF21Fu85e7zjz7ZN2U4ZRhfV3WpwPAoE3Z7kBw" tokenSecret="LswwdoUaIvS8ltyTt5jkRh4J50vUPVVHtR2YPi5kE">
			<rest:bodySerializer>
				<rest:XMLSerializationFilter />
			</rest:bodySerializer>
			<rest:resultDeserializer>
				<rest:XMLSerializationFilter />
			</rest:resultDeserializer>
			<rest:contentTypeProvider>
				<rest:RESTSerializationFilter requestContentType="application/xml" />
			</rest:contentTypeProvider>
			<rest:parametersSerializer>
				<rest:RESTSerializationFilter />
			</rest:parametersSerializer>
		</rest:BasicAuthenticationSerializationFilter>
	</mx:serializationFilter>
	<mx:operationList>
		<mx:HTTPOperation
			name="getUser"
			url="User/[ID]" />			
	</mx:operationList>
</mx:HTTPMultiService>

 import mx.rpc.AbstractOperation;
import mx.rpc.AsyncToken;
import mx.rpc.http.OAuthHeader;
import mx.rpc.utils.OAuthUtil;
		
import vo.User;
		
private function getUser(userId:uint):AsyncToken
{
	var oauthData:OAuthHeader = new OAuthHeader();
	oauthData.oauth_version = "1.0";
	oauthData.oauth_consumer_key = "xvz1evFS4wEEPTGEFPHBog";
	oauthData.oauth_token = "370773112-GmHxMAgYyLbNEtIKZeRNFsMKPR9EyMZeS9weJAEb";
	oauthData.oauth_nonce = OAuthUtil.generateNonce();
	oauthData.oauth_signature_method = OAuthHeader.SIGNATURE_METHOD_HMAC_SHA1;
	oauthData.oauth_timestamp = OAuthUtil.getTimestamp();

	var operation:AbstractOperation = service.getOperation("getUser");
	operation.arguments = { ID: userId }; //replace URL tokens

	oauthFilter.oauthData = oauthData;

	return operation.send();
}

靜態mx.utils.TypeUtil類可用於上面列出的所有類型鑄件。

mx.rpc.OperationResponder可用於使操作處理程序更加簡單。它模擬了Flex的AsyncResponder類，但具有不同的結果/故障功能簽名。有效的結果處理程序簽名為function(valueObject:Object):void 。結果處理程序功能將接收ResultEvent.result值，因此您可以將結果類型設置為處理程序： function(valueObject:MyResultClass):void 。有效的故障處理程序簽名為function(fault:Fault):void 。

 import mx.rpc.OperationResponder;
		
import vo.User;
		
private function getUser():void
{	
	service.getOperation("getUser").send().addResponder(new OperationResponder(onResult, onFault));
}

private function onResult(user:User):void
{
	trace(user.firstName);
}

private function onFault(fault:Fault):void
{
	trace(fault.faultDetail);
}

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