如何在使用MsmqIntegrationBinding时实现基于IIS的死信服务

Question

因此，我可以在使用NetMsmqBinding时使用get my dead-letter service pulling from the queue。但是，当我改用MsmqIntegrationBinding将消息推送到目标队列时，死信队列不再向死信服务发送消息。消息不再是WCF格式的-它们只是XML序列化。我不确定如何将管道设置发送到新服务。队列和URL仍然匹配。

我尝试按原样运行(使用netMsmqBinding)，切换到msmqIntegrationBinding，并指定serializationFormat，如下所示：

<bindings>
  <msmqIntegrationBinding>
    <binding exactlyOnce="true" durable="true" serializationFormat="Xml">
      <security mode="Transport" />
    </binding>
  </msmqIntegrationBinding>
</bindings>

然而，所有这些似乎都不起作用。任何想法都是受欢迎的。

Answer 1

在使用enabling WCF tracing (使用switchValue="All")之后，我能够看到我得到了以下异常：

An error occurred while deserializing an MSMQ message's XML body. The message cannot be received. Ensure that the service contract is decorated with appropriate [ServiceKnownType] attributes or the TargetSerializationTypes property is set on the MsmqIntegrationBindingElement.

在找到为我的每个类型添加ServiceKnownType的正确约定后，我遇到了这个进一步的异常：

The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver.  Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

从Simon Evans' Blog中，我们可以找到以下信息：

MsmqIntegrationBinding requires contracts that are designed only for its use. Unless additional behaviors are applied to the dispatcher, the service contract can contain only one service operation.

基本上，正如我们在MSDN example中看到的，使用MsmqIntegrationBinding需要一个接受所有消息的操作(Action = "*"或Action = ""可能也可以)。一旦我切换到msmqIntegrationBinding并转换了我的合同(确保我在新的合同上仍然使用ServiceKnownType )，一切都开始正常工作。