WCF - 从另一个 Web 应用程序（WCF 或 REST API）调用时的 EndpointNotFoundException

问：

最近，我在 WCF 中从另一个 Web 应用程序（WCF 或 REST API）调用时遇到了 EndpointNotFoundException 的问题。

我正在尝试连接到需要登录名和密码标识的外部 WCF 服务（现在我正在处理由提供商准备的测试环境）。

然后异常占用：

There was no endpoint listening at https://xxx/yyy.svc that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details

此问题不会在控制台应用程序中发生 - 工作顺利，但仅在我创建 WCF 或 REST API 等简单项目时才会发生。

<bindings>
      <customBinding>
        <binding name="custom">
          <security defaultAlgorithmSuite="Default" authenticationMode="UserNameOverTransport"
            requireDerivedKeys="true" includeTimestamp="true" messageSecurityVersion="WSSecurity11WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10">
            <localClientSettings detectReplays="false" />
            <localServiceSettings detectReplays="false" />
          </security>
          <textMessageEncoding messageVersion="Soap11WSAddressing10" />
          <httpsTransport maxReceivedMessageSize="2147483647" maxBufferPoolSize="2147483647"/>
        </binding>
      </customBinding>
    </bindings>
    <client>
      <endpoint address="https://uslugaterytws1test.stat.gov.pl/TerytWs1.svc"
        binding="customBinding" bindingConfiguration="custom" contract="TerytWsTest.ITerytWs1"
        name="custom" />
    </client>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <!-- To avoid disclosing metadata information, set the values below to false before deployment -->
          <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="false"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <protocolMapping>
        <add binding="basicHttpsBinding" scheme="https" />
    </protocolMapping>

TerytWs1Client tc = new TerytWs1Client();
tc.ClientCredentials.UserName.UserName = "TestPubliczny";
tc.ClientCredentials.UserName.Password = "1234abcd";
var zalogowany = tc.CzyZalogowany();

我也尝试过：

try { 
var proxy = new ChannelFactory<TerytWsTest.ITerytWs1>("custom");
proxy.Credentials.UserName.UserName = "TestPubliczny";
proxy.Credentials.UserName.Password = "1234abcd";
var result = proxy.CreateChannel();
var test = result.CzyZalogowany();
} 
catch (Exception ex) { }