Question

在IIS上托管名为“SimpleWCF”的WCF服务;我在浏览器中手动浏览时出现以下错误;

在服务SimpleWCF实现的合同列表中找不到合同名称“IMetadataExchange”。将ServiceMetadataBehavior直接添加到配置文件或ServiceHost以启用对此合同的支持。

我无法理解这个错误的原因[还是新的]。
这是我的配置文件;

<configuration>
  <system.serviceModel>
  <behaviors>
  <endpointBehaviors>
    <behavior name="">
     <webHttp />
    </behavior>
  </endpointBehaviors>
  <serviceBehaviors>
    <behavior name="">
      <serviceMetadata httpGetEnabled="true"/>
      <serviceDebug includeExceptionDetailInFaults="false"/>
    </behavior>
  </serviceBehaviors>
</behaviors>
<bindings>
  <basicHttpBinding>
    <binding name="LargeData" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">
      <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/>
      <security mode="None">
      </security>
    </binding>
  </basicHttpBinding>
</bindings>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
<services>
  <service name="SimpleWCF">
    <endpoint address="http://localhost/Sample/SimpleWCF.svc" binding="basicHttpBinding" bindingConfiguration="LargeData" contract="SimpleWCF"/>
    <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
  </service>
</services>
  </system.serviceModel>
  <system.web>
<compilation debug="true"/>
  </system.web>
</configuration>

Answer 1

在您的配置中，您需要为您的行为提供有效的名称！

<behaviors>
  <endpointBehaviors>
    <behavior name="webBehavior">
     <webHttp />
    </behavior>
  </endpointBehaviors>
  <serviceBehaviors>
    <behavior name="serviceBehavior">
      <serviceMetadata httpGetEnabled="true"/>
      <serviceDebug includeExceptionDetailInFaults="false"/>
    </behavior>
  </serviceBehaviors>
</behaviors>

来自您的<service>标记，您需要引用该行为：

<service name="SimpleWCF" behaviorConfiguration="serviceBehavior">

让它变得活跃。

如果您使用的是.NET 4 / WCF 4，您还可以定义默认行为 - 但是您需要完全省略name=属性：

<behaviors>
  <endpointBehaviors>
    <behavior>
     <webHttp />
    </behavior>
  </endpointBehaviors>
  <serviceBehaviors>
    <behavior>
      <serviceMetadata httpGetEnabled="true"/>
      <serviceDebug includeExceptionDetailInFaults="false"/>
    </behavior>
  </serviceBehaviors>
</behaviors>

现在每个端点都将获得该端点行为，并且每个服务都将获得服务行为。

元数据错误 - WCF

1 个答案: