多个Kstream @StreamListener

Question

我正在与一个应用程序一起工作，在该应用程序中，处理器应该处理多个域模型对象；例如，用户和角色

在我的处理器中，因此我试图处理多个主题；

SharedChrome

}

，流配置为；

@StreamListener(target = "uinput", copyHeaders = "true")
@SendTo(value = { "uoutput" })
public KStream<UUID, Event> processu(KStream<UUID, Event> ustream) {...}

@StreamListener(target = "rinput", copyHeaders = "true")
@SendTo(value = { "routput" })
public KStream<UUID, Event> processu(KStream<UUID, Event> ustream) {...}


public class TestRepositoryResponseListener {

@StreamListener(target = "uminput", copyHeaders = "true")
public void process(@Payload Event event) {
    log.debug("Processing User {}", event);

    // log.debug("Processing2 {}",eventSaved);
}

=测试流

spring.kafka.consumer.key-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer
spring.kafka.consumer.value-deserializer=org.springframework.kafka.support.serializer.JsonDeserializer

spring.kafka.consumer.group-id=user-repository-client-group
spring.kafka.consumer.client-id=user-repository-client

spring.kafka.consumer.auto-offset-reset=earliest
spring.kafka.consumer.properties.spring.json.trusted.packages=com.xx.yy


spring.kafka.producer.key-serializer=org.springframework.kafka.support.serializer.JsonSerializer
spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer
spring.kafka.producer.client-id=user-repository-producer

spring.cloud.stream.kafka.streams.binder.application-id=user-repository


spring.cloud.stream.kafka.streams.binder.configuration.default.key.serde=org.springframework.kafka.support.serializer.JsonSerde
spring.cloud.stream.kafka.streams.binder.configuration.default.value.serde=org.springframework.kafka.support.serializer.JsonSerde
spring.cloud.stream.kafka.streams.binder.configuration.spring.json.trusted.packages=com.xx.yy

spring.cloud.stream.bindings.uinput.destination=uinput
spring.cloud.stream.bindings.uinput.group=user-processor
spring.cloud.stream.bindings.uinput.contentType=application/java-serialized-object
spring.cloud.stream.bindings.uinput.consumer.header-mode=raw
spring.cloud.stream.bindings.uinput.consumer.use-native-decoding=true

spring.cloud.stream.bindings.uoutput.destination=uoutput
spring.cloud.stream.bindings.uoutput.contentType=application/java-serialized-object
spring.cloud.stream.bindings.uoutput.producer.header-mode=raw
spring.cloud.stream.bindings.uoutput.producer.use-native-encoding=true

====启用此选项会导致错误

spring.cloud.stream.bindings.umoutput.destination=uinput
spring.cloud.stream.bindings.umoutput.contentType=application/java-serialized-object
spring.cloud.stream.bindings.umoutput.producer.header-mode=raw
spring.cloud.stream.bindings.umoutput.producer.use-native-encoding=true

我希望为每个“处理器”和“响应侦听器”设置多个Stream侦听器，这似乎比我的预期更具挑战性。请帮忙提出一个有关kstreams和可测试的usign junit 5的示例，该示例正在使用以下代码；

spring.cloud.stream.bindings.uminput.destination=uoutput
spring.cloud.stream.bindings.uminput.contentType=application/java-serialized-object
spring.cloud.stream.bindings.uminput.group=user-processor-test-listener
spring.cloud.stream.bindings.uminput.consumer.header-mode=raw
spring.cloud.stream.bindings.uminput.consumer.use-native-decoding=true

[ERROR] 2019-01-31 08:26:51,967 org.springframework.kafka.listener.LoggingErrorHandler.handle(LoggingErrorHandler.java:37) - Error while processing: null
.

另外，如果有人使用Kstream与@StreamListener（... condition =“ payload.x.x”）配合使用，我也需要ur inout

我已经解决了这里建议的问题；

Multiple StreamListeners with Spring Cloud Stream connected to Kafka

现在可能要克服的最后一个问题是RuntimeError处理，正如我粘贴的代码中显而易见的那样，这是一个Spring Repo，它可以引发各种org.springframework.dao.DataAccessException，需要将其传播回给调用方，在这种情况下，Web公开了服务层。请帮助