【Kafka】
KafkaProducer
Kafka消息发布客户端。
线程安全,跨线程共享单个生产者实例通常比拥有多个实例的速度更快。
例子,使用生产者发送包含序列号的字符串作为键/值对的记录:
Properties props = new Properties(); props.put("bootstrap.servers", "localhost:9092"); props.put("acks", "all"); props.put("retries", 0); props.put("batch.size", 16384); props.put("linger.ms", 1); props.put("buffer.memory", 33554432); 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); for (int i = 0; i < 100; i++) producer.send(new ProducerRecord<String, String>("my-topic", Integer.toString(i), Integer.toString(i))); producer.close();