WCF:如何对 SSL 服务执行 "Add Service Reference"(我收到错误)

Question

FooService.svc.cs:

[ServiceContract(ProtectionLevel = ProtectionLevel.EncryptAndSign)]
public interface IFooBar
{
    [OperationContract()]
    int Add(int num1, int num2);
}

[ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple)]
public class FooService : IFooBar
{
    public int Add(int num1, int num2)
    {
        return num1 + num2;
    }
}

Web.config:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

  <system.web>
    <customErrors mode="Off"/>
    <globalization culture="en-US" uiCulture="en-US" />
    <compilation defaultLanguage="c#" targetFramework="4.0" />
  </system.web>

  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>

  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true" />
        <defaultDocument>
            <files>
                <add value="index.aspx" />
            </files>
        </defaultDocument>
  </system.webServer>

  <system.diagnostics>
    <sources>
      <source name="System.ServiceModel.MessageLogging" switchValue="Warning, ActivityTracing">
        <listeners>
          <add name="ServiceModelTraceListener" />
        </listeners>
      </source>

      <source name="System.ServiceModel" switchValue="Verbose,ActivityTracing">
        <listeners>
          <add name="ServiceModelTraceListener" />
        </listeners>
      </source>
      <source name="System.Runtime.Serialization" switchValue="Verbose,ActivityTracing">
        <listeners>
          <add name="ServiceModelTraceListener" />
        </listeners>
      </source>
    </sources>
    <sharedListeners>
      <add initializeData="App_tracelog.svclog" type="System.Diagnostics.XmlWriterTraceListener, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" name="ServiceModelTraceListener" traceOutputOptions="Timestamp" />
    </sharedListeners>
  </system.diagnostics>

</configuration>

我将文件发布到我的服务器(上面有 ssl 证书)，但是当我转到网页时:https://localhost:443/FooService.svc我收到以下错误...

The request message must be protected. This is required by an operation of the contract ('IFooBar','http://tempuri.org/'). The protection must be provided by the binding ('BasicHttpBinding','http://tempuri.org/').

无论我直接转到 url 还是从 Visual Studio 中转到 Add Service Reference...，都会发生这种情况。

---

此外，如果我将 [ServiceContract(ProtectionLevel = ProtectionLevel.EncryptAndSign)] 更改为 [ServiceContract]，它工作正常。

Answer 1

WCF 4 中 HTTP 传输的默认绑定(bind)是 basicHttpBinding。当您将服务契约(Contract)保护级别设置为加密和签名时，绑定(bind)还必须支持消息级别安全性。由于 basicHttpBinding 不支持消息级安全，您需要手动将服务配置为 wsHttpBinding 或更改协议(protocol)映射如下:

<system.serviceModel>
   <protocolMapping>
      <remove scheme="http" />
      <add scheme="http" binding="wsHttpBinding" bindingConfiguration="" />
   </protocolMapping>
... snip ...
</system.serviceModel>