WCF WPF Silverlight wsDualHttpBinding pollingDuplexHttpBindi

Question

我正在为让这个Silverlight双工器工作而奋斗，但失败了又失败了，

我有A）WCF服务应用程序B）WPF客户端C）Silverlight客户端（我需要+主机吗？！）

我成功连接A<=>B-工作不错，我的问题是A<=>C（Silverlight双工客户端）

• 我可以有两个端点吗？wsDualHttpBinding&轮询双工HttpBinding？尝试但失败

未能加载协定"Service2.IService1"的终结点配置节，因为找到了该协定的多个终结点配置。请按名称指示首选终结点配置节。

• pollingDuplexHttpBinding能在WPF上工作吗？

• 救命！谢谢

Web。配置

<!-- Register the binding extension from the SDK. -->
<extensions>
  <bindingExtensions>
    <add name="pollingDuplexHttpBinding"
         type="System.ServiceModel.Configuration.PollingDuplexHttpBindingCollectionElement,
               System.ServiceModel.PollingDuplex, 
               Version=4.0.0.0, 
               Culture=neutral, 
               PublicKeyToken=31bf3856ad364e35" />
  </bindingExtensions>
</extensions>
<client>
  <endpoint address="http://localhost:8732/Service1/" binding="wsDualHttpBinding" bindingConfiguration="wsDualHttpBinding" contract="TheWCFService.IService1" name="WSDualHttpBinding_Service1" />
</client>
<bindings>
  <wsDualHttpBinding>
    <binding name="wsDualHttpBinding" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647">
      <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483646" maxArrayLength="2147483646" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
    </binding>
  </wsDualHttpBinding>
  <pollingDuplexHttpBinding>
    <binding name="multipleMessagesPerPollPollingDuplexHttpBinding"
             duplexMode="MultipleMessagesPerPoll"
             maxOutputDelay="00:00:07"/>
  </pollingDuplexHttpBinding>
</bindings>

<services>
  <service behaviorConfiguration="" name="TheWCFService.Service1">
    <endpoint address="" 
              binding="wsDualHttpBinding" 
              bindingConfiguration="wsDualHttpBinding" 
              contract="TheWCFService.IService1">
      <identity>
        <dns value="localhost" />
      </identity>
    </endpoint>
    <endpoint 
      address="mex"
      binding="mexHttpBinding" 
      bindingConfiguration="" 
      contract="IMetadataExchange" />
    <!--<endpoint
       address="/2"
       binding="pollingDuplexHttpBinding"
       bindingConfiguration="multipleMessagesPerPollPollingDuplexHttpBinding"
       contract="TheWCFService.IService1">
    </endpoint>-->
    <host>
      <baseAddresses>
        <add baseAddress="http://localhost:8732/Service1/" />
      </baseAddresses>
    </host>
  </service>
</services>
<behaviors>
  <serviceBehaviors>
    <behavior name="">
      <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
      <serviceMetadata httpGetEnabled="true" />
        <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
      <serviceDebug includeExceptionDetailInFaults="false" />
      <serviceThrottling maxConcurrentSessions="500" maxConcurrentCalls="500" maxConcurrentInstances="500" />
    </behavior>
  </serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />

Answer 1

所以是的，可能有两个以上的端点：

第一步：

<endpoint address="wsDualHttpBinding" 
                  binding="wsDualHttpBinding" 
                  bindingConfiguration="wsDualHttpBinding" 
                  contract="TheWCFService.IService1">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint 
          address="mex"
          binding="mexHttpBinding" 
          bindingConfiguration="" 
          contract="IMetadataExchange" />
        <endpoint
           address="pollingDuplexHttpBinding"
           binding="pollingDuplexHttpBinding"
           bindingConfiguration="multipleMessagesPerPollPollingDuplexHttpBinding"
           contract="TheWCFService.IService1">
        </endpoint>
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8732/Service1/" />
          </baseAddresses>
        </host>

第二步：非常重要：WCF跨域安全异常

http://www.itscodingtime.com/post/Silverlight-to-WCF-Cross-Domain-SecurityException.aspx

第三步：

Silverlight客户端：

            var x = new WCFService.Service1Client(
                    new PollingDuplexHttpBinding { DuplexMode = PollingDuplexMode.MultipleMessagesPerPoll, },
                    new EndpointAddress(@"http://localhost:59732/Service1.svc/pollingDuplexHttpBinding")
                    );

WPF客户端：

>  _objProxy = new Service1Client(new InstanceContext(this),
> "WSDualHttpBinding_IService1");