IDispatchMessageInspector.BeforeSendReply(Message, Object) 方法
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
在操作已返回后发送回复消息之前调用。
public:
void BeforeSendReply(System::ServiceModel::Channels::Message ^ % reply, System::Object ^ correlationState);
public void BeforeSendReply (ref System.ServiceModel.Channels.Message reply, object correlationState);
abstract member BeforeSendReply : Message * obj -> unit
Public Sub BeforeSendReply (ByRef reply As Message, correlationState As Object)
参数
- reply
- Message
回复消息。 如果操作是单向的,则此值为 null。
- correlationState
- Object
从 AfterReceiveRequest(Message, IClientChannel, InstanceContext) 方法返回的关联对象。
示例
下面的代码示例演示了一个基本的 IDispatchMessageInspector,当调用它时会将字符串写入控制台。
#region IDispatchMessageInspector Members
public object AfterReceiveRequest(ref System.ServiceModel.Channels.Message request, IClientChannel channel, InstanceContext instanceContext)
{
Console.WriteLine("IDispatchMessageInspector.AfterReceiveRequest called.");
return null;
}
public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
{
Console.WriteLine("IDispatchMessageInspector.BeforeSendReply called.");
}
#endregion
#Region "IDispatchMessageInspector Members"
Public Function AfterReceiveRequest(ByRef request As System.ServiceModel.Channels.Message, _
ByVal channel As IClientChannel, ByVal instanceContext As InstanceContext) _
As Object Implements IDispatchMessageInspector.AfterReceiveRequest
Console.WriteLine("IDispatchMessageInspector.AfterReceiveRequest called.")
Return Nothing
End Function
Public Sub BeforeSendReply(ByRef reply As System.ServiceModel.Channels.Message, ByVal correlationState As Object) _
Implements IDispatchMessageInspector.BeforeSendReply
Console.WriteLine("IDispatchMessageInspector.BeforeSendReply called.")
End Sub
#End Region
下面的代码示例演示 IServiceBehavior 的实现,它将 Inspector
IDispatchMessageInspector 添加到 DispatchRuntime.MessageInspectors 集合。
#region IServiceBehavior Members
public void AddBindingParameters(
ServiceDescription serviceDescription,
ServiceHostBase serviceHostBase,
System.Collections.ObjectModel.Collection<ServiceEndpoint> endpoints,
BindingParameterCollection bindingParameters
)
{ return; }
public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
{
foreach (ChannelDispatcher chDisp in serviceHostBase.ChannelDispatchers)
{
foreach (EndpointDispatcher epDisp in chDisp.Endpoints)
{
epDisp.DispatchRuntime.MessageInspectors.Add(new Inspector());
foreach (DispatchOperation op in epDisp.DispatchRuntime.Operations)
op.ParameterInspectors.Add(new Inspector());
}
}
}
#Region "IServiceBehavior Members"
Public Sub AddBindingParameters(ByVal serviceDescription As ServiceDescription, _
ByVal serviceHostBase As ServiceHostBase, ByVal endpoints As _
System.Collections.ObjectModel.Collection(Of ServiceEndpoint), _
ByVal bindingParameters As BindingParameterCollection) Implements IServiceBehavior.AddBindingParameters
Return
End Sub
Public Sub ApplyDispatchBehavior(ByVal serviceDescription As ServiceDescription, _
ByVal serviceHostBase As ServiceHostBase) Implements _
IServiceBehavior.ApplyDispatchBehavior
For Each chDisp As ChannelDispatcher In serviceHostBase.ChannelDispatchers
For Each epDisp As EndpointDispatcher In chDisp.Endpoints
epDisp.DispatchRuntime.MessageInspectors.Add(New Inspector())
For Each op As DispatchOperation In epDisp.DispatchRuntime.Operations
op.ParameterInspectors.Add(New Inspector())
Next op
Next epDisp
Next chDisp
End Sub
下面的代码示例演示如何使用应用程序配置文件来加载插入 Inspector
IDispatchMessageInspector 的服务行为。
<configuration>
<system.serviceModel>
<services>
<service
name="Microsoft.WCF.Documentation.SampleService"
behaviorConfiguration="metadataSupport">
<host>
<baseAddresses>
<add baseAddress="http://localhost:8080/SampleService" />
</baseAddresses>
</host>
<endpoint
address=""
binding="wsHttpBinding"
contract="Microsoft.WCF.Documentation.ISampleService"
/>
<endpoint
address="mex"
binding="mexHttpBinding"
contract="IMetadataExchange"
/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="metadataSupport">
<serviceMetadata httpGetEnabled="true" httpGetUrl=""/>
<serviceInterceptors />
</behavior>
</serviceBehaviors>
</behaviors>
<extensions>
<behaviorExtensions>
<add
name="serviceInterceptors"
type="Microsoft.WCF.Documentation.InspectorInserter, HostApplication, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null"
/>
</behaviorExtensions>
</extensions>
</system.serviceModel>
</configuration>
注解
在发送返回消息之前,使用 BeforeSendReply 方法来执行自定义行为。 correlationState
是从 AfterReceiveRequest 方法返回的对象,您可以使用它在入站和出站调用间执行关联来支持您的行为。
适用于
反馈
https://aka.ms/ContentUserFeedback。
即将发布:在整个 2024 年,我们将逐步淘汰作为内容反馈机制的“GitHub 问题”,并将其取代为新的反馈系统。 有关详细信息,请参阅:提交和查看相关反馈