“普通”SVC与“Silverlight”SVC (WCF)

Question

我正在尝试从我的Silverlight 3应用程序调用WCF服务。但是..。当试图在我的web项目中创建一个“启用silverlight的wcf服务”时，我的VS2008在创建项目的过程中崩溃了(我想是在编辑web.config的时候)。

所以我想:让我们创建一个“普通的”wcf服务，并手动将其编辑为“支持silverlight的webservice”。

所以我想知道它们的区别是什么，第二:为什么从silverlight应用程序调用的服务与非silverlight应用程序调用的服务之间存在差异？

这就是我现在拥有的绑定(我有一个没有接口契约的服务，首先只公开了一个直接的类)：

<system.serviceModel>
        <behaviors>
            <serviceBehaviors>
                <behavior name="RadControlsSilverlightApp1.Web.GetNewDataBehavior">
                    <serviceMetadata httpGetEnabled="true" />
                    <serviceDebug includeExceptionDetailInFaults="false" />
                </behavior>
            </serviceBehaviors>
        </behaviors>
        <bindings>
            <customBinding>
                <binding name="customBinding0">
                    <binaryMessageEncoding />
                    <httpTransport />
                </binding>
            </customBinding>
        </bindings>
        <serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
        <services>
            <service behaviorConfiguration="RadControlsSilverlightApp1.Web.GetNewDataBehavior"
             name="RadControlsSilverlightApp1.Web.GetNewData">
                <endpoint address="" binding="customBinding" bindingConfiguration="customBinding0"
                 contract="RadControlsSilverlightApp1.Web.GetNewData" />
                <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
            </service>
        </services>

    </system.serviceModel>

这个方法不起作用，因为当我从silverlight应用程序中添加对它的引用时，我会收到以下消息：

Warning 2   Custom tool warning: Cannot import wsdl:portType
Detail: An exception was thrown while running a WSDL import extension: System.ServiceModel.Description.DataContractSerializerMessageContractImporter
Error: Exception has been thrown by the target of an invocation.
XPath to Error Source: //wsdl:definitions[@targetNamespace='']/wsdl:portType[@name='GetNewData']    C:\Silverlight\RadControlsSilverlightApp1\RadControlsSilverlightApp1\Service References\ServiceReference1\Reference.svcmap  1   1   RadControlsSilverlightApp1
Warning 3   Custom tool warning: Cannot import wsdl:binding
Detail: There was an error importing a wsdl:portType that the wsdl:binding is dependent on.
XPath to wsdl:portType: //wsdl:definitions[@targetNamespace='']/wsdl:portType[@name='GetNewData']
XPath to Error Source: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:binding[@name='CustomBinding_GetNewData']    C:\Silverlight\RadControlsSilverlightApp1\RadControlsSilverlightApp1\Service References\ServiceReference1\Reference.svcmap  1   1   RadControlsSilverlightApp1
Warning 4   Custom tool warning: Cannot import wsdl:port
Detail: There was an error importing a wsdl:binding that the wsdl:port is dependent on.
XPath to wsdl:binding: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:binding[@name='CustomBinding_GetNewData']
XPath to Error Source: //wsdl:definitions[@targetNamespace='http://tempuri.org/']/wsdl:service[@name='GetNewData']/wsdl:port[@name='CustomBinding_GetNewData']  C:\Silverlight\RadControlsSilverlightApp1\RadControlsSilverlightApp1\Service References\ServiceReference1\Reference.svcmap  1   1   RadControlsSilverlightApp1
Warning 5   Custom tool warning: No endpoints compatible with Silverlight 3 were found. The generated client class will not be usable unless endpoint information is provided via the constructor.  C:\Silverlight\RadControlsSilverlightApp1\RadControlsSilverlightApp1\Service References\ServiceReference1\Reference.svcmap  1   1   RadControlsSilverlightApp1

(另外，该服务可以在浏览器中启动，我得到的信息是：

svcutil.exe http://localhost:9599/GetNewData.svc?wsdl

)

Answer 1

似乎手头还有另一个问题，这里有答案。

can i use a generic list in a WCF called from silverlight?

Answer 2

主要为您做的是：

Web.config is configured to use basicHttpBinding since Silverlight does not support ws*. 
ASP compatibility mode: <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/> 

因此，一个好的开始应该是将您的服务转换为使用basicHttpBinding。有关适用于服务的web.config部分的更多信息，请查看Configuring Services Using Configuration Files。

在使用Silverlight enabled WCF Service Template is Bad Practice中描述的模板时，可能会失去一些灵活性