Kafka DSL Kstream->Ktable Join - Joined Serialization compile Error

我正在尝试根据此 kafka documentation 实现此连接。

我不知道为什么这个连接不起作用...

首先我传递了所有值。

这里试图强制泛型为Object类型，这是非常错误的。

没有加入序列化选项我收到这个运行时异常：

Exception in thread "StreamAPP-stream-event-b3dc5fff-abee-4fa0-92f9-e1690f8fd152-StreamThread-1" org.apache.kafka.streams.errors.StreamsException: ClassCastException while producing data to topic StreamAPP-stream-event-KSTREAM-KEY-SELECT-0000000025-repartition. A serializer (key: org.apache.kafka.common.serialization.ByteArraySerializer / value: org.apache.kafka.common.serialization.ByteArraySerializer) is not compatible to the actual key or value type (key type: br.com.calebebrim.kafka.entities.stream.sharing.registry.StreamRegistryKey / value type: br.com.calebebrim.kafka.entities.stream.sharing.stream.Event). Change the default Serdes in StreamConfig or provide correct Serdes via method parameters (for example if using the DSL, #to(String topic, Produced<K, V> produced) with Produced.keySerde(WindowedSerdes.timeWindowedSerdeFrom(String.class)))

谁能帮帮我？

谢谢！

已解决，

我发现连接操作不能转换数据。

所以，我只是在之前应用了 mapValues：

Kafka DSL Kstream->Ktable Join - Joined Serialization compile Error

Kafka DSL Kstream->Ktable Join - Joined Serialization compile Error

java

dsl

compiler-errors

apache-kafka-streams