https://www.tutorialspoint.com/wcf/wcf_versus_web_service.htm

There are some major differences that exist between WCF and a Web service which are listed below.

這里總結了WCF和網絡服務之間主要的不同之處

• Attributes?- WCF service is defined by ServiceContract and OperationContract attributes, whereas a web service is defined by WebService and WebMethod attributes.

• Protocols?- WCF supports a range of protocols, i.e., HTTP, Named Pipes, TCP, and MSMQ, whereas a web service only supports HTTP protocol.

• Hosting Mechanisms?- Various activation mechanisms are there for WCF hosting, i.e., IIS (Internet Information Service), WAS (Windows Activation Service), Self-hosting and Windows Service, but a web service is hosted only by IIS.

• Services?- WCF supports a robust security, trustworthy messaging, transaction and interoperability, while a web service only supports security services.

• Serializer?- WCF Supports DataContract serializer by employing System.Runtime.Serialization, whereas a web service supports XML serializer by making use of System.Xml.Serialization.

• Tools?- ServiceMetadata tool (svcutil.exe) is used for client generation for a WCF service, while WSDL.EXE tool is used for generating the same for a web service.

• Exception Handling?- In WCF, unhandled exceptions are handled in a better way by making use of FaultContract. They do not return to the client like in a web service as SOAP faults.

• Has

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1.特質：WCF服務由服務契約和操作契約定義，然而web服務是由WebService以及WebMethod屬性來定義的

2.協議：WCF支持一系列的協議，例如HTTP、命名管道、消息隊列，然而web服務僅僅支持HTTP協議

3.托管機制：wcf有各種可用的機制，例如IIS(互聯網信息服務)、WAS(windows激活服務)、Self-hosting(自托管)以及windows服務，但是webService僅僅支持IIS

4.服務：wcf提供了一個穩健的安全,可靠的消息,事務以及互操作性。然而webService僅僅支持安全服務

5.序列化器:wCF通過使用System.Runtime.Serialization提供數據契約序列化器,然而webservice是通過使用System.Xml.Serialization來支持XML序列化器的

6.工具：svcutil.exe被客戶端用來生成一個wcf服務，然而webservice使用WSDL.EXE工具

7.異常處理：在wcf中，未處理的異常會由faultContract來以一種較好的方式來處理。wcf并不會像webservice那樣將未處理的異常作為soap故障返回給客戶端

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轉載于:https://www.cnblogs.com/chucklu/p/4628502.html

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