最近,我遇到了 wcf 服务调用的问题,在消息的开头和结尾的消息中随机返回了 2 次标头。这是我通过提琴手看到的一个例子:
HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/xml; charset=utf-8
Vary: Accept-Encoding
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Thu, 16 Feb 2012 15:48:22 GMT
Content-Length: 308
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body><Person_UpdateLastCSIDResponse/></s:Body></s:Envelope>HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 126
Content-Type: text/xml; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
这并非一直发生,但似乎是随机发生的。它不仅仅发生在一个特定的服务调用中,而是可以在任何调用下发生。我还不能确定一个模式。
我们在 silverlight 应用程序中通过负载均衡器使用绑定类型 basicHttpBinding。
编辑:
我们有一个相当基本的配置:
服务端:
<system.serviceModel>
<extensions>
<behaviorExtensions>
<add name="silverlightFaults" type="Website.Support.SilverlightFaultBehavior, Website" />
</behaviorExtensions>
</extensions>
<behaviors>
<serviceBehaviors>
<behavior>
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"
multipleSiteBindingsEnabled="true" />
<services>
<service name="Website.Services.CommonService">
<endpoint address="" behaviorConfiguration="SilverlightFaultBehavior"
binding="basicHttpBinding" bindingConfiguration="MyDefaultBinding"
contract="Website.Services.CommonService" />
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
</service>
<bindings>
<basicHttpBinding>
<binding name="MyDefaultBinding" maxBufferSize="6500000" maxReceivedMessageSize="6500000">
<readerQuotas maxDepth="32" maxStringContentLength="52428800" maxArrayLength="52428800"
maxBytesPerRead="4096" maxNameTableCharCount="52428800" />
</binding>
</basicHttpBinding>
</bindings>
<client />
</system.serviceModel>
客户端:
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="SecureBinding" maxBufferSize="8388608" maxReceivedMessageSize="8388608">
<security mode="Transport" />
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="https://Website/Services/CommonService.svc" binding="basicHttpBinding" bindingConfiguration="SecureBinding"
contract="CommonSvcReference.CommonService" name="BasicHttpBinding_CommonService"/>
</client>
</system.serviceModel>