Question

我遇到了WCF服务调用的问题。该服务采用一个复杂的对象，其中包含许多对象列表。当对象太大时会发生此问题。我收到一个未找到的通信异常。只要项目不是太大，呼叫就会起作用。任何帮助，将不胜感激。以下是客户端配置文件的相关部分：

<bindings>
    <basicHttpBinding>
        <binding name="BasicHttpBinding_ICartService" maxBufferSize="2147483647"
                 maxReceivedMessageSize="2147483647">
            <security mode="None" />
        </binding>
    </basicHttpBinding>
</bindings>
<client>
    <endpoint address="../Services/CartService.svc"
              binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ICartService"
              contract="AccessPoint.RichClient.Wcf.ICartService"
              name="BasicHttpBinding_ICartService" />
</client>

web.config文件包含以下内容：

<bindings>
    <basicHttpBinding>
        <binding name="basicHttpLargeMessage" closeTimeout="00:02:00"
                 openTimeout="00:02:00" receiveTimeout="00:10:00" sendTimeout="00:02:00"
                 maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647">
            <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647"
                maxArrayLength="2147483647" maxBytesPerRead="2147483647"
                maxNameTableCharCount="2147483647" />
        </binding>
    </basicHttpBinding>
</bindings>

<services>
    <service behaviorConfiguration="CartService.CartServiceBehavior"
             name="AccessPoint.WcfServices.CartService">
        <endpoint address="" behaviorConfiguration="CartServiceBehavior"
                  binding="basicHttpBinding" bindingConfiguration="basicHttpLargeMessage"
                  contract="AccessPoint.WcfServices.ICartService" />
</service>

<behaviors>
    <serviceBehaviors>
        <behavior name="CartService.CartServiceBehavior">
            <serviceMetadata httpGetEnabled="true" />
            <serviceDebug includeExceptionDetailInFaults="true" />
            <dataContractSerializer maxItemsInObjectGraph ="2147483647"/>
        </behavior>
    </serviceBehaviors>
    <endpointBehaviors>
        <behavior name="CartServiceBehavior">
            <dataContractSerializer maxItemsInObjectGraph="2147483647" />
        </behavior>
    </endpointBehaviors>
</behaviors>

Answer 1

任何服务器错误都将在Silverlight中反映为“未找到”异常。您需要使用一些网络嗅探工具（例如Fiddler）来查看响应是否有关于错误的一些其他信息，或者在服务器端使用enable tracing来查看它为何返回不成功的响应。

http://blogs.msdn.com/b/silverlightws/archive/2010/09/23/debugging-wcf-services-in-silverlight.aspx上的帖子有一个视频，其中包含有关在Silverlight中调试WCF服务的大量信息。

大型对象找不到WCF错误

1 个答案: