C# WCF ChannelFactory BadRequest 400 错误

Question

我创建了一个简单的 web 服务服务器，但是为了从同一个项目中的服务类调用方法，我创建了一个 webchannelfactory 代理。在我将项目（或 exe 版本）移动到另一台机器之前，一切正常。搞不懂是怎么回事！

我收到此错误消息：

The remote server returned an unexpected response: (400) Bad Request.

使用堆栈跟踪：

Server stack trace:
   at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResp
onse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factor
y, WebException responseException, ChannelBinding channelBinding)
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpCha
nnelRequest.WaitForReply(TimeSpan timeout)
   at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeS
pan timeout)
   at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message messag
e, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean on
eway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan tim
eout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCall
Message methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage req
Msg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgDa
ta, Int32 type)
   at Client.IClientService.dosomething()
   at Host.ClientHost.Start(Uri hostUri, Int32 interval) in C:\(...)

代码：

WebChannelFactory<Client.IClientService> factory = new WebChannelFactory<Client.IClientService>(hostUri);

Client.IClientService proxy = factory.CreateChannel();

proxy.dosomething();  // Error shout here on Machine2

提前致谢

编辑1： 对于此示例，没有客户端（我已将客户端命名为此服务器）。正如我所说，它在另一台机器上运行的代码没有错误（都使用本地主机）。

<?xml version="1.0"?>
<configuration>
      <appSettings>
      <system.serviceModel>
        <bindings>
        </bindings>
    <services>
      <service name="Client.ClientService" behaviorConfiguration="Default">
        <endpoint address="" binding="webHttpBinding" contract="Client.IClientService"></endpoint>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="Default">
          <serviceMetadata httpGetEnabled="true"></serviceMetadata>
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
  </startup>
</configuration>

EDIT2：

在浏览器上，我得到了这个：

服务器在处理请求时遇到错误。例外 消息是 'Client.ClientService' 的类型初始化程序抛出了一个 例外。'。有关更多详细信息，请参阅服务器日志。异常堆栈 跟踪是：

在 Client.ClientService..ctor() 在 CreateClient.ClientService() 在 System.ServiceModel.Dispatcher.InstanceProvider.GetInstance(InstanceContext instanceContext，消息消息）在 System.ServiceModel.Dispatcher.InstanceBehavior.GetInstance（InstanceContext instanceContext，消息请求）在 System.ServiceModel.InstanceContext.GetServiceInstance（消息 消息）在 System.ServiceModel.Dispatcher.InstanceBehavior.EnsureServiceInstance（MessageRpc& RPC）在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage41（MessageRpc& RPC）在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4（MessageRpc& RPC）在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31（MessageRpc& RPC）在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3（MessageRpc& RPC）在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2（MessageRpc& RPC）在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11（MessageRpc& RPC）在 System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1（MessageRpc& rpc) 在 System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)

Answer 1

问题解决了。

该服务使用数据库，所以当我将项目复制到新机器时，我忘记创建新数据库了。