我需要在同一个kafka主题上发送不同的json负载（例如，foo、bar、car…），而不使用父类
基于SpringKafka文档，我可以使用 @KafkaListener 在类级别并指定 @KafkaHandler 方法级（doc）

@KafkaListener(topics = "myTopic")
static class MultiListenerBean {

    @KafkaHandler
    public void listen(Foo foo) {
        ...
    }

    @KafkaHandler
    public void listen(Bar bar) {
        ...
    }

    @KafkaHandler
    public void listen(Car car) {
        ...
    }
}

但我有个例外：

[org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] ERROR o.s.k.listener.LoggingErrorHandler - Error while processing: ConsumerRecord(topic = myTopic, partition = 1, offset = 0, CreateTime = 1508859519287, checksum = 3297149058, serialized key size = -1, serialized value size = 13, key = null, value = {"foo":"foo"})
org.springframework.kafka.KafkaException: No method found for class java.util.LinkedHashMap
    at org.springframework.kafka.listener.adapter.DelegatingInvocableHandler.getHandlerForPayload(DelegatingInvocableHandler.java:92)
    at org.springframework.kafka.listener.adapter.DelegatingInvocableHandler.getMethodNameFor(DelegatingInvocableHandler.java:147)
    at org.springframework.kafka.listener.adapter.HandlerAdapter.getMethodAsString(HandlerAdapter.java:60)
    at org.springframework.kafka.listener.adapter.MessagingMessageListenerAdapter.invokeHandler(MessagingMessageListenerAdapter.java:188)
    at org.springframework.kafka.listener.adapter.RecordMessagingMessageListenerAdapter.onMessage(RecordMessagingMessageListenerAdapter.java:72)
    at org.springframework.kafka.listener.adapter.RecordMessagingMessageListenerAdapter.onMessage(RecordMessagingMessageListenerAdapter.java:47)
    at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.invokeRecordListener(KafkaMessageListenerContainer.java:794)
    at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.invokeListener(KafkaMessageListenerContainer.java:738)
    at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.run(KafkaMessageListenerContainer.java:570)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.lang.Thread.run(Thread.java:745)

我也尝试过这种方法，但不起作用：

@KafkaListener(topics = "myTopic")
   public void receive(ConsumerRecord<String, ?> payload)
   {
      if (payload.value() instanceof Foo)
      {
         //
      }
      else if (payload.value() instanceof Car)
      {
         //
      }
   }

如何配置生产者和消费者使用springkafka在同一主题上发送不同的json负载？