Posted on 2007-09-09 00:07
黎波 阅读(687)
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.NET CF
- .NET Compact Framework 3.5 已经支持 Windows Communication Foundation (WCF)了，这是 .NET CF 3.5 最让人兴奋的特性之一。不过，.NET CF 版的 WCF 是 .NET Framework 3.5 版 WCF 的功能子集。MSDN Library for Visual Studio 2008 Beta 2 (Development Tools and Languages|Visual Studio|.NET Framework Programming in Visual Studio|.NET Compact Framework|Application Development|Windows Communication Foundation (WCF) Development|Messaging in the .NET Compact Framework) 中是这样描述的：
The subset of Windows Communication Foundation (WCF) that is implemented in the .NET Compact Framework provides a unified programming model for building message-oriented applications. It enables developers to build secure messaging applications that work across platforms and that support interaction with existing WCF services on the desktop.
(译文：.NET 精简框架实现了 WCF 的子集，为构建面向消息的应用程序提供了统一的编程模型。这使得开发人员能够构建跨平台的安全的消息应用程序，并且支持跟现有的运行在桌面平台的 WCF 服务交互。)
WCF messaging layer on the .NET Compact Framework
Support for the WS-Security version 1.0 specification includes SOAP message security using X.509 certificates. The Message class is built on the WS-Addressing standard.
MSDN Library for Visual Studio 2008 Beta 2 对 Compact WCF 与 Desktop WCF 之间的差异描述得不够详尽，只是简单描述了一下架构和安全方面的不同。
今天发现有人整理了一个比较详细的表格，供大家参考：
|
Feature
|
Desktop WCF
|
Compact WCF
|
| Bindings: |
|
|
| · BasicHttpBinding |
Yes |
Yes |
| · CustomBinding |
Yes |
Yes |
| · WindowsMobileMailBinding |
N/A |
Yes |
| · ExchangeWebServiceMailBinding |
Yes, via NetCF install |
Yes |
| Formatters: |
|
|
| · SoapFormatter |
Yes |
Yes |
| · BinaryFormatter |
Yes |
No |
| Encoders: |
|
|
| · TextMessageEncoder |
Yes |
Yes |
| · BinaryMessageEncodingBindingElement |
Yes |
No |
| · MTOMEncoder |
Yes |
No |
| · GzipEncoder |
Sample available |
Sample available |
| Transports: |
|
|
| · HttpTransportBindingElement |
Yes |
Yes |
| · HttpsTransportBindingElement |
Yes |
Yes |
| · MailTransportBindingElement |
Yes, via NetCF install |
Yes |
| · MsmqTransportBindingElement |
Yes |
No |
| · TcpTransportBindingElement |
Yes |
No |
| · (other transports) |
Yes |
No |
| XmlDictionaryReader/Writer |
Yes |
Yes; stub around XmlTextReader/Writer |
| DataContractSerializer |
Yes |
No; but can be wire-compatible with DCS via XmlSerializer |
| Service proxy generation |
Yes; via SvcUtil.exe |
Yes; via NetCFSvcUtil.exe, not integrated into VS2008 |
| · Non-HTTP transports |
Yes |
No |
| · Custom headers |
Yes |
No |
| WS-Addressing |
Yes |
Yes |
| WS-Security message level security |
|
|
| · X.509 |
Yes |
Yes |
| · Username/password |
Yes |
No |
| · SecurityAlgorithmSuite.Basic256Rsa15 |
Yes |
Yes |
| · SecurityAlgorithmSuite.Basic256 |
Yes |
No |
| WS-ReliableMessaging |
Yes |
No |
| Patterns |
|
|
| · Service model |
Yes |
No |
| · Message layer programming |
Yes |
Yes |
| · Buffered messages |
Yes |
Yes |
| · Streaming messages |
Yes |
No |
| · Endpoint descriptions in .config files |
Yes |
No |
| Channel extensibility |
Yes |
Yes |
| Security channel extensibility |
Yes |
No |
其中 Mail Binding 是很有意思的一个特性，我
以前的随笔有提过。不过这个功能需要跟 Exchange Server 配合使用，有一定的局限性。WCF Exchange Server Mail Transport 使用方法可以参考 MSDN 文档。