wcf 服务在服务器上部署时显示错误

Question

我有一个 wcf 服务，在我的本地主机上运行没问题，现在的问题是，当我尝试在服务器上部署它时，出现以下错误：

Could not find a base address that matches scheme http for the endpoint with binding MetadataExchangeHttpBinding. Registered base address schemes are [].

[InvalidOperationException: Could not find a base address that matches scheme http for the endpoint with binding MetadataExchangeHttpBinding. Registered base address schemes are [].]
   System.ServiceModel.ServiceHostBase.MakeAbsoluteUri(Uri relativeOrAbsoluteUri, Binding binding, UriSchemeKeyedCollection baseAddresses) +16604769
   System.ServiceModel.Description.ConfigLoader.LoadServiceDescription(ServiceHostBase host, ServiceDescription description, ServiceElement serviceElement, Action`1 addBaseAddress) +1082
   System.ServiceModel.ServiceHostBase.ApplyConfiguration() +156
   System.ServiceModel.ServiceHostBase.InitializeDescription(UriSchemeKeyedCollection baseAddresses) +215
   System.ServiceModel.ServiceHost..ctor(Type serviceType, Uri[] baseAddresses) +475
   System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(Type serviceType, Uri[] baseAddresses) +43
   System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses) +530
   System.ServiceModel.HostingManager.CreateService(String normalizedVirtualPath) +1413
   System.ServiceModel.HostingManager.ActivateService(String normalizedVirtualPath) +50
   System.ServiceModel.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) +1172

[ServiceActivationException: The service '/HighriseSite/appservices.svc' cannot be activated due to an exception during compilation.  The exception message is: Could not find a base address that matches scheme http for the endpoint with binding MetadataExchangeHttpBinding. Registered base address schemes are []..]
   System.Runtime.AsyncResult.End(IAsyncResult result) +901424
   System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +178638
   System.Web.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult ar) +107

服务器上的 Web 服务配置如下：

<system.serviceModel>
  <serviceHostingEnvironment>
    <baseAddressPrefixFilters>
      <add prefix="http://49.50.72.21/HighriseSite/"/>
    </baseAddressPrefixFilters>
  </serviceHostingEnvironment>
  <behaviors>
    <serviceBehaviors>
      <behavior name="AppServicesBehavior">
        <serviceMetadata httpGetEnabled="true"/>
        <serviceDebug includeExceptionDetailInFaults="false"/>
      </behavior>
    </serviceBehaviors>
    <endpointBehaviors>
      <behavior name="JsonBehavior">
        <webHttp/>
      </behavior>
    </endpointBehaviors>
  </behaviors>
  <services>
    <service behaviorConfiguration="AppServicesBehavior" name="AppServices">
      <endpoint address="http://49.50.72.21/HighriseSite/AppServices.svc" binding="webHttpBinding" contract="IAppServices" behaviorConfiguration="JsonBehavior">
        <identity>
          <dns value="http://49.50.72.21/"/>
        </identity>
      </endpoint>
      <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
    </service>
  </services>
</system.serviceModel>

虽然我本地主机上的网络服务配置如下：

<system.serviceModel>
  <serviceHostingEnvironment>
    <baseAddressPrefixFilters>
      <add prefix="http://localhost:7378/HighriseeSite/"/>
    </baseAddressPrefixFilters>
  </serviceHostingEnvironment>
  <behaviors>
    <serviceBehaviors>
      <behavior name="AppServicesBehavior">
        <serviceMetadata httpGetEnabled="true"/>
        <serviceDebug includeExceptionDetailInFaults="false"/>
      </behavior>
    </serviceBehaviors>
    <endpointBehaviors>
      <behavior name="JsonBehavior">
        <webHttp/>
      </behavior>
    </endpointBehaviors>
  </behaviors>
  <services>
    <service behaviorConfiguration="AppServicesBehavior" name="AppServices">
      <endpoint address="http://localhost:7378/HighriseeSite/AppServices.svc" binding="webHttpBinding" contract="IAppServices" behaviorConfiguration="JsonBehavior">
        <identity>
          <dns value="http://localhost:7378/"/>
        </identity>
      </endpoint>
      <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
    </service>
  </services>
</system.serviceModel>

我无法弄清楚为什么它在本地主机上运行顺利，但在服务器上显示错误。

Answer 1

您收到此错误的原因是您通过 webHttpBinding 公开端点，但指定您还希望公开 WSDL 定义。

元数据端点用于通过 SOAP 绑定公开的端点，例如 basicHttpBinding 或 wcHttpBinding。因此，如果您想使用 webHttpBinding，则不能定义 mex 绑定。

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