我将springkafka与avro一起使用，但我不想使用schema注册表。很遗憾，我无法删除此配置：

spring.kafka.producer.properties.schema.registry.url

当我去掉那条线时，我得到：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'EssoBeo' defined in class path resource [com/beo/service/BeoConfig.class]: Invocation of init method failed; nested exception is org.apache.kafka.common.KafkaException: Failed to construct kafka consumer
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1778) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:847) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at com.beo.service.MyService.main(MyService.java:12) [my-service-1.0.0.0-SNAPSHOT.jar:?]
Caused by: org.apache.kafka.common.KafkaException: Failed to construct kafka consumer
    at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:799) ~[kafka-clients-2.0.1.jar:?]
    at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:615) ~[kafka-clients-2.0.1.jar:?]
    at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createKafkaConsumer(DefaultKafkaConsumerFactory.java:164) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createConsumerWithAdjustedProperties(DefaultKafkaConsumerFactory.java:160) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createKafkaConsumer(DefaultKafkaConsumerFactory.java:135) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createConsumer(DefaultKafkaConsumerFactory.java:109) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.listener.AbstractMessageListenerContainer.checkTopics(AbstractMessageListenerContainer.java:305) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.listener.ConcurrentMessageListenerContainer.doStart(ConcurrentMessageListenerContainer.java:156) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.listener.AbstractMessageListenerContainer.start(AbstractMessageListenerContainer.java:297) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at com.beo.service.service.kafka.MyObserver.afterPropertiesSet(MyObserver.java:34) ~[my-service-1.0.0.0-SNAPSHOT.jar:?]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1837) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1774) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    ... 16 more
Caused by: io.confluent.common.config.ConfigException: Missing required configuration "schema.registry.url" which has no default value.
    at io.confluent.common.config.ConfigDef.parse(ConfigDef.java:251) ~[common-config-5.3.0.jar:?]
    at io.confluent.common.config.AbstractConfig.<init>(AbstractConfig.java:78) ~[common-config-5.3.0.jar:?]
    at io.confluent.kafka.serializers.AbstractKafkaAvroSerDeConfig.<init>(AbstractKafkaAvroSerDeConfig.java:136) ~[kafka-avro-serializer-5.3.0.jar:?]
    at io.confluent.kafka.serializers.KafkaAvroDeserializerConfig.<init>(KafkaAvroDeserializerConfig.java:42) ~[kafka-avro-serializer-5.3.0.jar:?]
    at io.confluent.kafka.serializers.KafkaAvroDeserializer.configure(KafkaAvroDeserializer.java:50) ~[kafka-avro-serializer-5.3.0.jar:?]
    at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:701) ~[kafka-clients-2.0.1.jar:?]
    at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:615) ~[kafka-clients-2.0.1.jar:?]
    at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createKafkaConsumer(DefaultKafkaConsumerFactory.java:164) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createConsumerWithAdjustedProperties(DefaultKafkaConsumerFactory.java:160) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createKafkaConsumer(DefaultKafkaConsumerFactory.java:135) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.core.DefaultKafkaConsumerFactory.createConsumer(DefaultKafkaConsumerFactory.java:109) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.listener.AbstractMessageListenerContainer.checkTopics(AbstractMessageListenerContainer.java:305) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.listener.ConcurrentMessageListenerContainer.doStart(ConcurrentMessageListenerContainer.java:156) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at org.springframework.kafka.listener.AbstractMessageListenerContainer.start(AbstractMessageListenerContainer.java:297) ~[spring-kafka-2.2.14.RELEASE.jar:2.2.14.RELEASE]
    at com.beo.service.service.kafka.MyObserver.afterPropertiesSet(MyObserver.java:34) ~[my-service-1.0.0.0-SNAPSHOT.jar:?]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1837) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1774) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE]
    ... 16 more

我试着遵循以下教程：
https://medium.com/@igorvlahek1/no-need-for-schema-registry-in-your-spring-kafka-tests-a5b81468a0e1
但是这个解决方案仍然需要配置行，尽管它没有被使用，而且我可以在其中写入任何无效的url：

spring.kafka.producer.properties.schema.registry.url= not-used

在我的例子中，我想完全摆脱application.properties中的这个配置行，而不会得到上面的异常。有什么办法吗？