我具有以下kafka生产者属性。
value.serializer=MyEventSerializer
value.deserializer=MyEventDeserializer
default.value.serde=MyEventSerde
我已经通过Vertx site中的序列化程序 并使用
创建了生产者KafkaProducer<String, MyEvent> producer = KafkaProducer.create(vertx, configProperties, String.class, MyEvent.class);
但是出现以下错误:
SEVERE: Unknown class for built-in
serializer. Supported types are: String, Short, Integer, Long, Float, Double, ByteArray, ByteBuffer, Bytes
java.lang.IllegalArgumentException: Unknown class for built-in serializer. Supported types are: String, Short, Integer, Long, Float, Double, ByteArray, ByteBuffer, Bytes
是否可以在Vertx kafka客户端中使用自定义序列化程序?
答案 0 :(得分:1)
我必须手动执行KafkaProducer.create()
的操作。
Serializer<String> keySerializer = VertxSerdes.serdeFrom(String.class).serializer();
Serializer<MyEvent> valueSerializer = new MyEventSerializer();
KafkaWriteStream<String, MyEvent> stream = new KafkaWriteStreamImpl(vertx.getOrCreateContext(), new org.apache.kafka.clients.producer.KafkaProducer(configProperties, keySerializer, valueSerializer));
KafkaProducer<String,MyEvent> producer=(new KafkaProducerImpl(stream)).registerCloseHook();
然后使用..写记录。
KafkaProducerRecord producerRecord= KafkaProducerRecord.create(topicName,key,value);
producer.write(producerRecord, done -> {
if (done.succeeded()) {
// TODO if succeeded
} else {
// TODO if failed
}
});