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Flex Viewer 开发教程(7)Widget与服务器交互

发布时间:2020-12-15 04:10:02 所属栏目:百科 来源:网络整理
导读:本小节将不涉及具体的代码细节,因为Widget与服务器的交互不会因为Flex Viewer的架构而有所不同,了解了Flex程序如何与服务器端进行交互,直接应用到Widget中即可。下表是Flex与服务器端进行交互可用的技术,具体细节可参考《Flex 4 in Action》中的第15章。

本小节将不涉及具体的代码细节,因为Widget与服务器的交互不会因为Flex Viewer的架构而有所不同,了解了Flex程序如何与服务器端进行交互,直接应用到Widget中即可。下表是Flex与服务器端进行交互可用的技术,具体细节可参考《Flex 4 in Action》中的第15章。

Communication

Server Support

Application

Benefits

HTTP

(includes REST and RPC hybrids)

??-All

Simple Widget-based applications; speed and real-time UI updates aren’t required.

Easy implementation via the HTTPService object; RPC hybrid protocols can be invoked using RemoteObject.

SOAP/WSDL

??-All

Data aggregation from external web services.

Easy implementation; pull data from multiple outside resources regardless of platform.

AML

??-BlazeDS&LiveCycle Data Services(LCDS):Java,

??-.NETZend: PHP

??-AMFPHP: PHP

??-WebOrb: .NET,Ruby,PHP

Approaching enterprise level; speed is important; data is usually pulled from server by polling.

Binary data compression makes communications 12 times faster; strong data typing; multiplatform support.

RTMP

??-LiveCycle Data Services(LCDS),

??-Flash Media Server(FMS)

Enterprise level,messaging,instantaneous UI updates; data can be pushed to the client; streaming media content; data intensive RIAs.

Integrates into existing J2EE infrastructure; document management,rapid data transfer,clustering,data tracking,syncing,paging,and conflict resolution.

Flash Remoting

??-Native to ColdFusion

Robust,enterprise platform for client/server Flex communications; native.

Seamless integration with the Flash platform; removes the need for an intermediate code library to do data type mapping and date serialization.

JSON

??-All (JavaScript data objects are serialized and transferred in binary form.)

AIR applications that use AJAX or Flex applications that use the ExternalInterface API.

Easy implementation with the HTTPService object; part of the AS3CorLib library.

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