Question

我创建了一个在IIS 7中托管的WCF服务

我的.NET版本是4.0

我的操作系统是Windows 7旗舰版

我的服务地址：

的net.tcp：//本地主机：4504 / WPFHost / TCP

当我添加服务参考时，我得到两个警告：

首先：

Warning 2   Custom tool warning: Endpoint 'NetTcpBinding_IChat' at address 'net.tcp://localhost:4504/WPFHost/tcp' is not compatible with Silverlight 4. Skipping... D:\Projects\C#\WCF\SilverlightApplication1\SilverlightApplication1\Service References\SV\Reference.svcmap   1   1   SilverlightApplication1

第二

Warning 3   Custom tool warning: No endpoints compatible with Silverlight 4 were found. The generated client class will not be usable unless endpoint information is provided via the constructor.  D:\Projects\C#\WCF\SilverlightApplication1\SilverlightApplication1\Service References\SV\Reference.svcmap   1   1   SilverlightApplication1

我的服务Appconfig文件如下所示：

<?xml version="1.0"?>
<configuration>
  <system.web>
    <compilation debug="true"/>
  </system.web>
  <system.serviceModel>
    <services>
      <service name="WCFService.Service"
                     behaviorConfiguration="behaviorConfig">

        <host>
          <baseAddresses>
            <add baseAddress="net.tcp://localhost:4504/WPFHost/"/>
            <add baseAddress="http://localhost:4505/WPFHost/"/>
          </baseAddresses>
        </host>
        <endpoint address="tcp"
                          binding="netTcpBinding"
                          bindingConfiguration="tcpBinding"
                          contract="WCFChatLibrary.IChat"/>

        <endpoint address="net.tcp://localhost:4503/WPFHost/mex"
                          binding="mexTcpBinding"
                          contract="IMetadataExchange"/>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="behaviorConfig">
          <serviceMetadata httpGetEnabled="true" httpGetUrl=""/>
          <serviceDebug includeExceptionDetailInFaults="true"/>
          <serviceThrottling maxConcurrentCalls="100" maxConcurrentSessions="100"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <bindings>
      <netTcpBinding>
        <binding name="tcpBinding"
                         maxBufferSize="67108864"
                         maxReceivedMessageSize="67108864"
                         maxBufferPoolSize="67108864"
                         transferMode="Buffered"
                         closeTimeout="00:00:10"
                         openTimeout="00:00:10"
                         receiveTimeout="00:20:00"
                         sendTimeout="00:01:00"
                         maxConnections="100">
          <security mode="None">
          </security>
          <readerQuotas maxArrayLength="67108864"
                                  maxBytesPerRead="67108864"
                                  maxStringContentLength="67108864"/>
          <reliableSession enabled="true" inactivityTimeout="00:20:00"/>
        </binding>
      </netTcpBinding>
    </bindings>
  </system.serviceModel>
</configuration>

当我调用该服务时，它会抛出异常。这是我的代码：

if (this.proxy == null)
        {
            try
            {
                this.StatusTxtBlock.Text = "Ready";
                this.localClient = new Client();
                this.localClient.Username = "User-" + Guid.NewGuid();
                this.proxy = new ChatClient(new InstanceContext(this));

                this.proxy.OpenAsync();
                this.proxy.ConnectAsync(this.localClient);
                this.proxy.ConnectCompleted += new EventHandler<ConnectCompletedEventArgs>(proxy_ConnectCompleted);
            }
            catch (Exception ex)
            {
                this.StatusTxtBlock.Text = "Exception: "+ ex.Message;
            }
        }

，例外是：

Exception: The given key was not present in the dictionary

我遵循此tutorial但没有运气

我不知道该怎么做，我的思想和愿景会变得空白，也许我会发疯。请有人救救我（我的意思是帮助我）。

Answer 1

Silverlight 4支持服务器上的NetTcpBinding子集。例如，它不支持安全性（这对你的情况很好，因为你的绑定中有<security mode="None">），它也不支持可靠的消息传递（这可能是你的情况下的问题，因为你在绑定中启用了它。这是netTcpBinding的一个绑定配置，它与SL兼容：

<bindings>
  <netTcpBinding>
    <binding name="SLCompatible">
      <security mode="None"/>
    </binding>
  </netTcpBinding>
</bindings>

Answer 2

此MSDN article表示NetTcpBinding无法与Silverlight 4一起使用。

我不确定是否相信Tomasz Janczuk或MSDN，但Tomasz的文章是2年，所以我的猜测是：NetTcpBinding计划用于Silverlight 4，但不包括在最后。

您可以考虑切换到BasicHttpBinding或'滚动您自己的'自定义绑定，如following article中所述。

在Silverlight中使用netTcpBinding

2 个答案: