java - 想要输入主机名:9092 in BootStrap url(I have the hostname entry against the actual url in my host file windows) JAVA

Question

想要输入 subham-virtualbox:9092 而不是 172.16.6.86:9092 作为我的 bootstrapURL 和 schemaRegistryurl。

我的主机文件中有此条目需要解决

172.16.6.86 subham-virtualbox

尝试这样做，但出现错误，

Exception in thread "main" org.apache.kafka.common.errors.SerializationException: Error serializing Avro message
Caused by: java.net.MalformedURLException: unknown protocol: subham-virtualbox
    at java.net.URL.<init>(URL.java:617)
    at java.net.URL.<init>(URL.java:507)
    at java.net.URL.<init>(URL.java:456)
    at io.confluent.kafka.schemaregistry.client.rest.RestService.sendHttpRequest(RestService.java:175)
    at io.confluent.kafka.schemaregistry.client.rest.RestService.httpRequest(RestService.java:256)
    at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:356)
    at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:348)
    at io.confluent.kafka.schemaregistry.client.rest.RestService.registerSchema(RestService.java:334)
    at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.registerAndGetId(CachedSchemaRegistryClient.java:168)
    at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.register(CachedSchemaRegistryClient.java:222)
    at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.register(CachedSchemaRegistryClient.java:198)
    at io.confluent.kafka.serializers.AbstractKafkaAvroSerializer.serializeImpl(AbstractKafkaAvroSerializer.java:70)
    at io.confluent.kafka.serializers.KafkaAvroSerializer.serialize(KafkaAvroSerializer.java:53)
    at org.apache.kafka.common.serialization.Serializer.serialize(Serializer.java:62)
    at org.apache.kafka.clients.producer.KafkaProducer.doSend(KafkaProducer.java:903)
    at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:865)
    at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:752)
    at com.github.meSubhamSaraf.AvroSerializerDemo.main(AvroSerializerDemo.java:58)

Answer 1

错误并不是说 UnknownHostException

schema.registry.url 需要一个协议(protocol)，并且它的端口不是 9092

http://subham-virtualbox:8081

您的引导服务器可以是subham-virtualbox:9092

就我个人而言，我建议使用 Docker 并为注册表进行简单的端口转发，而不是整个虚拟机。
否则，Vagrant works great并可以通过插件为您编辑主机文件