<!-- Binding settings for HTTPS endpoint -->
<binding name="yourServiceName">
    <security mode="Transport">
        <transport clientCredentialType="None" />
        <!-- Don't use message -->
    </security>
</binding>

我在自定义绑定场景中遇到了相同的异常。任何使用这种方法的人，也可以检查这个。

我实际上是从本地WSDL文件中添加服务引用。它被成功添加，所需的自定义绑定被添加到配置文件。然而，实际的服务是https;而不是http。因此我将httpTransport元素更改为httpTransport。这就解决了问题

<system.serviceModel>
<bindings>

  <customBinding>
    <binding name="MyBindingConfig">

      <textMessageEncoding maxReadPoolSize="64" maxWritePoolSize="16"
        messageVersion="Soap11" writeEncoding="utf-8">
        <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
          maxBytesPerRead="4096" maxNameTableCharCount="16384" />
      </textMessageEncoding>

      <!--Manually changed httpTransport to httpsTransport-->
      <httpsTransport manualAddressing="false" maxBufferPoolSize="524288"
        maxReceivedMessageSize="65536" allowCookies="false" authenticationScheme="Anonymous"
        bypassProxyOnLocal="false" 
        decompressionEnabled="true" hostNameComparisonMode="StrongWildcard"
        keepAliveEnabled="true" maxBufferSize="65536" 
        proxyAuthenticationScheme="Anonymous"
        realm="" transferMode="Buffered" unsafeConnectionNtlmAuthentication="false"
        useDefaultWebProxy="true" />
    </binding>
  </customBinding>

</bindings>

<client>
  <endpoint address="https://mainservices-certint.mycompany.com/Services/HRTest"
    binding="customBinding" bindingConfiguration="MyBindingConfig"
    contract="HRTest.TestWebserviceManagerImpl" name="TestWebserviceManagerImpl" />
</client>


</system.serviceModel>

参考文献

WCF与自定义绑定在http和https

尝试在app.config中添加消息凭据，如下所示:

<bindings> 
<basicHttpBinding> 
<binding name="defaultBasicHttpBinding"> 
  <security mode="Transport"> 
    <transport clientCredentialType="None" proxyCredentialType="None" realm=""/> 
    <message clientCredentialType="Certificate" algorithmSuite="Default" />
  </security> 
</binding> 
</basicHttpBinding> 
</bindings> 

我已经通过Visual Studio添加了一个“连接服务”到我们的项目中，它生成了一个默认方法来创建客户端。

var client = new MyWebService.Client(MyWebService.Client.EndpointConfiguration.MyPort, _endpointUrl);

这个构造函数继承了ClientBase，并且在幕后使用它自己的方法Client.GetBindingForEndpoint(endpointConfiguration)来创建Binding:

public Client(EndpointConfiguration endpointConfiguration, string remoteAddress) :
            base(Client.GetBindingForEndpoint(endpointConfiguration), 
                 new System.ServiceModel.EndpointAddress(remoteAddress))

此方法对https服务和http服务有不同的设置。 当你想从http获取数据时，你应该使用TransportCredentialOnly:

System.ServiceModel.BasicHttpBinding result = new System.ServiceModel.BasicHttpBinding();
result.Security.Mode = System.ServiceModel.BasicHttpSecurityMode.TransportCredentialOnly;
 

对于https，您应该使用Transport:

result.Security.Mode = System.ServiceModel.BasicHttpSecurityMode.Transport;

我需要以下绑定来让我的工作:

        <binding name="SI_PurchaseRequisition_ISBindingSSL">
          <security mode="Transport">
            <transport clientCredentialType="Basic" proxyCredentialType="None" realm="" />
          </security>
        </binding>

遇到同样的问题，这是我最后的解决方案:

        <basicHttpsBinding>
            <binding name="VerificationServicesPasswordBinding">
              <security mode="Transport">
              </security>
            </binding>
            <binding name="VerificationServicesPasswordBinding1" />
        </basicHttpsBinding>

我基本上把所有出现的Http都换成了Https。如果你愿意，你可以试着把它们都加起来。