Kafka Producer :处理异步发送回调异常

Properties props = new Properties();
props.put("bootstrap.servers", "kafka-broker:9092");
props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");

Producer<String, String> producer = new KafkaProducer<>(props);

producer.send(new ProducerRecord<>("my-topic", "key", "value"), new Callback() {
    @Override
    public void onCompletion(RecordMetadata metadata, Exception exception) {
        if (exception != null) {
            exception.printStackTrace();
            // 重试逻辑
        } else {
            System.out.println("Message sent successfully to topic: " + metadata.topic() + " partition: " + metadata.partition() + " offset: " + metadata.offset());
        }
    }
});