Question

我几乎已将vb中的ASMX中的服务迁移到基于新的WCF 4.0，但由于我在开始时收到消息，因此无法运行它：

WCF Service Host cannot find any service metadata. This may cause the client application to run improperly. Please check if metadate is enabled. Do you want to exit?

我不知道这个app.config有什么问题。

你能看一下并帮助我吗？

WCF Service Host cannot find any service metadata. This may cause the client application to run improperly. Please check if metadate is enabled. Do you want to exit?

<?xml version="1.0"?>
<configuration>
  <configSections>
    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <section name="ExtraWS.My.MySettings" requirePermission="false" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
    </sectionGroup>
  </configSections>
  <!-- When deploying the service library project, the content of the config file must be added to the host's 
  app.config file. System.Configuration does not support config files for libraries. -->
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="ExtraWS.ExtraBehavior">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <services>
      <service behaviorConfiguration="ExtraWS.ExtraBehavior" name="ExtraWS.Service1">
        <endpoint address="" binding="basicHttpBinding" contract="ExtraWS.Service1" name ="mex">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
      </service>
    </services>
    <bindings>
      <basicHttpBinding>
        <binding allowCookies="false" bypassProxyOnLocal="false" closeTimeout="00:01:00" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Text" name="PostcodeLookupSoap" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true">
          <readerQuotas maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxDepth="32" maxNameTableCharCount="2147483647" maxStringContentLength="2147483647" />
          <security mode="Transport">
            <transport clientCredentialType="None" proxyCredentialType="None" realm="" />
            <message algorithmSuite="Default" clientCredentialType="UserName" />
          </security>
        </binding>
        <binding allowCookies="false" bypassProxyOnLocal="false" closeTimeout="00:01:00" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Text" name="C1WSSoap" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true">
          <readerQuotas maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxDepth="32" maxNameTableCharCount="2147483647" maxStringContentLength="2147483647" />
          <security mode="Transport">
            <transport clientCredentialType="None" proxyCredentialType="None" realm="" />
            <message algorithmSuite="Default" clientCredentialType="UserName" />
          </security>
        </binding>
        <binding allowCookies="false" bypassProxyOnLocal="false" closeTimeout="00:01:00" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Text" name="E1Soap" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true">
          <readerQuotas maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxDepth="32" maxNameTableCharCount="2147483647" maxStringContentLength="2147483647" />
          <security mode="Transport">
            <transport clientCredentialType="None" proxyCredentialType="None" realm="" />
            <message algorithmSuite="Default" clientCredentialType="UserName" />
          </security>
        </binding>
      </basicHttpBinding>
    </bindings>
    <client>
      <endpoint address="https://postcodews.mycompany.co.uk/PostcodeLookup.asmx" binding="basicHttpBinding" bindingConfiguration="PostcodeLookupSoap" contract="PostcodeService.PostcodeLookupSoap" name="PostcodeLookupSoap" />
      <endpoint address="https://C1.mycompany.co.uk/C1ws.asmx" binding="basicHttpBinding" bindingConfiguration="C1WSSoap" contract="C1Service.C1WSSoap" name="C1WSSoap" />
      <endpoint address="https://E1uat.mycompany.co.uk/qbitE1.asmx" binding="basicHttpBinding" bindingConfiguration="E1Soap" contract="E1Service.E1Soap" name="E1Soap" />
    </client>
  </system.serviceModel>
  <system.web>
    <authorization>
      <allow users="*" />
    </authorization>
    <compilation debug="true" />
    <authentication mode="Windows" />
    <httpHandlers>
      <remove path="*.asmx" verb="*" />
      <add path="*.asmx" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" verb="*" />
      <add path="*_AppService.axd" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" verb="*" />
      <add path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false" verb="GET,HEAD" />
    </httpHandlers>
    <httpModules>
      <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    </httpModules>
    <membership defaultProvider="ClientAuthenticationMembershipProvider">
      <providers>
        <add name="ClientAuthenticationMembershipProvider" type="System.Web.ClientServices.Providers.ClientFormsAuthenticationMembershipProvider, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" />
      </providers>
    </membership>
    <roleManager defaultProvider="ClientRoleProvider" enabled="true">
      <providers>
        <add name="ClientRoleProvider" type="System.Web.ClientServices.Providers.ClientRoleProvider, System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" cacheTimeout="86400" />
      </providers>
    </roleManager>
  </system.web>
  <applicationSettings>
    <ExtraWS.My.MySettings>
      <setting name="AlwaysAuthenticate" serializeAs="String">
        <value>False</value>
      </setting>
    </ExtraWS.My.MySettings>
  </applicationSettings>
  <appSettings>
    SECRET/>
    <add key="ClientSettingsProvider.ServiceUri" value="" />
  </appSettings>
  <connectionStrings>
    SECRET/>
  </connectionStrings>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0" />
  </startup>
</configuration>

Answer 1

您的WCF服务是库（DLL）吗？我问，因为您发布的配置文件中有以下行：

如果您的服务是DLL，那么您需要在主机的配置文件中发布<system.serviceModel>部分。对于IIS，这将是web.config文件;对于Windows服务或自托管服务，它将是app.config文件。正如上面的注释行所示，服务库不使用自己的配置文件，它们使用主机的配置文件。

Answer 2

得到了解决方案！

此问题与“服务名称”属性有关。它无法在标签中找到IService。我把IService改成了一些不同的名字。需要映射正确的名称。

Answer 3

在Solution Explorer中右键单击app.config 1.这将打开配置对话框。 2.扩展服务。 3.选择终点。 4.在右侧点击合同 5.这将打开应用程序目录 6.打开bin文件夹。双击dll，然后选择服务 7.单击文件菜单并保存。

这里hostissue是命名空间..所以服务名称应该是hostissue。你实现的类。

构建应用程序并运行它。

WCF服务主机找不到任何服务元数据

3 个答案: