WCF Web 服务通过 HTTPS 返回 404，但通过 HTTP 工作

Question

我有一个多年前编写的 Web 服务，它在 http 上运行良好。它通过网络浏览器工作以查看服务描述并正确响应肥皂调用。我们现在要将其移至 https。

我对 web.config 文件进行了一些更改，以尝试使其能够通过 https 工作。我现在可以在浏览器中通过 https 调用它并查看服务描述，但我无法通过 https 使用肥皂调用调用 Web 服务 - 我收到 404 错误。

我正在使用 Postman 测试肥皂调用，所以这似乎表明问题出在 web.config 或 IIS 上。

我发现很多帖子都存在与 WCF over https 相关的问题，但尚未成功解决此问题。任何帮助将不胜感激。

web.config 中的服务相关代码如下所示。

<system.serviceModel>
    <services>
  <service name="EComAPI" behaviorConfiguration="WCFAuthBehavior">
    <endpoint address="soap" binding="wsHttpBinding" contract="IEComAPI" bindingConfiguration="httpbinding1"></endpoint>
    <endpoint address="soap" binding="wsHttpBinding" contract="IEComAPI" bindingConfiguration="httpsbinding1"></endpoint>
    <endpoint address="rest" binding="webHttpBinding" contract="IEComAPI" behaviorConfiguration="rest" bindingConfiguration="httpbinding2"></endpoint>
    <endpoint address="rest" binding="webHttpBinding" contract="IEComAPI" behaviorConfiguration="rest" bindingConfiguration="httpsbinding2"></endpoint>
    <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"></endpoint>
  </service>
</services>

    <bindings>
      <wsHttpBinding>
        <binding name="httpbinding1">
          <security mode="None"></security>
        </binding>
        <binding name="httpsbinding1">
          <security mode="Transport">
            <transport clientCredentialType="None"></transport>
          </security>
        </binding>
      </wsHttpBinding>

      <webHttpBinding>
        <binding name="httpbinding2">
          <security mode="None">
          </security>
        </binding>
        <binding name="httpsbinding2">
          <security mode="Transport">
            <transport clientCredentialType="None"></transport>
          </security>
        </binding>
      </webHttpBinding>
    </bindings>

    <behaviors>
      <serviceBehaviors>
        <behavior name="WCFAuthBehavior">
          <serviceMetadata httpsGetEnabled="false" httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
        <behavior name="">
          <serviceMetadata httpsGetEnabled="true" httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="rest">
          <webHttp />
        </behavior>
      </endpointBehaviors>
    </behaviors>
  </system.serviceModel>

总结：

• 对此服务的 http web 请求 - 好的

• 对此服务的 http soap 请求 - 好的

• 对该服务的 https 网络请求 - 好的

• 对此服务的 https 肥皂请求 - 给出 404

Answer 1

如果我们想通过 HTTPS 调用 SOAP 风格的服务，我们应该使用 Wshttpbinding 发布服务端点并指定客户端凭据类型（默认值为 windows）。

    <system.serviceModel>
      <services>
        <service name="VM1.MyService" behaviorConfiguration="mybehavior">
          <endpoint address="" binding="wsHttpBinding" contract="VM1.IService" bindingConfiguration="mybinding"></endpoint>
          <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange"></endpoint>
        </service>
      </services>
      <bindings>
        <wsHttpBinding>
          <binding name="mybinding">
            <security mode="Transport">
              <transport clientCredentialType="None"></transport>
            </security>
          </binding>
        </wsHttpBinding>
      </bindings>
      <behaviors>
        <serviceBehaviors>
          <behavior name="mybehavior">
            <serviceMetadata />
          </behavior>
        </serviceBehaviors>
      </behaviors>
</system.serviceModel>

然后在 IIS 站点绑定模块中指定一个 https 端点。
如果我们想以Restful风格发布服务，我们应该使用WebHttpBinding。
https://docs.microsoft.com/en-us/dotnet/framework/wcf/feature-details/wcf-web-http-programming-model
最后我做了一个类似的配置，支持SOAP风格和Restful风格（需要在操作方法中添加webget/webinvoke），同时支持https和http。

<system.serviceModel>
      <services>
        <service name="VM1.MyService" behaviorConfiguration="mybehavior">
          <endpoint address="soap” binding="wsHttpBinding" contract="VM1.IService" bindingConfiguration="httpbinding1"></endpoint>
          <endpoint address="soap” binding="wsHttpBinding" contract="VM1.IService" bindingConfiguration="httpsbinding1"></endpoint>
          <endpoint address="rest” binding="webHttpBinding" contract="VM1.IService" behaviorConfiguration="rest" bindingConfiguration="httpbinding2"></endpoint>
          <endpoint address="rest” binding="webHttpBinding" contract="VM1.IService" behaviorConfiguration="rest" bindingConfiguration="httpsbinding2"></endpoint>
          <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" ></endpoint>
        </service>
      </services>
      <bindings>
        <wsHttpBinding>
          <binding name="httpbinding1">
            <security mode="None"></security>
          </binding>
          <binding name="httpsbinding1">
            <security mode="Transport">
              <transport clientCredentialType="None"></transport>
            </security>
          </binding>
        </wsHttpBinding>
        <webHttpBinding>
          <binding name="httpbinding2">
            <security mode="None">
            </security>
          </binding>
          <binding name="httpsbinding2">
            <security mode="Transport">
              <transport clientCredentialType="None"></transport>
            </security>
          </binding>
        </webHttpBinding>
      </bindings>
      <behaviors>
        <serviceBehaviors>
          <behavior name="mybehavior">
            <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
          </behavior>
        </serviceBehaviors>
        <endpointBehaviors>
          <behavior name="rest">
            <webHttp />
          </behavior>
        </endpointBehaviors>
      </behaviors>
    </system.serviceModel>

如果我们将服务托管在 IIS 中，请不要忘记在 IIS 站点绑定模块中指定 Http 和 Https 基地址。
如果有什么可以帮助的，请随时告诉我。