与天蓝色的经纪人消息不知道类型的身体 [英] with azure brokeredmessage get the body without knowing the type

问题描述

在Azure Service Bus中使用代理消息时，可以通过调用.GetBody检索消息的正文.代码很简单:

When you are using the brokered message in the Azure Service Bus, you can retrieve the body of the message with the call .GetBody. The code is simple:

var msg = subscription.Receive();
MyPayload payload = msg.GetBody<MyPayload>();

但是，有一种方法可以在不显式了解body对象类的情况下检索Body吗?

However, is there a way to retrieve the Body without explicitly knowing the class of the body object?

var msg = subscription.Receive();
Type bodyType = Type.GetType( msg.ContentType);

var payload = msg.GetBody<bodyType>();

推荐答案

以下是从代理消息反序列化的完整代码:

Here is the complete code to deserialize from the brokeredmessage:

public T GetBody<T>(BrokeredMessage brokeredMessage)
{
  var ct = brokeredMessage.ContentType;
  Type bodyType = Type.GetType(ct, true);

  var stream = brokeredMessage.GetBody<Stream>();
  DataContractSerializer serializer = new DataContractSerializer(bodyType);
  XmlDictionaryReader reader = XmlDictionaryReader.CreateBinaryReader(stream, XmlDictionaryReaderQuotas.Max);
  object deserializedBody = serializer.ReadObject(reader);
  T msgBase = (T)deserializedBody;
  return msgBase;
}

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