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package com.lun.kafka.producer;
import java.util.Properties;
import java.util.concurrent.ExecutionException;
import org.apache.kafka.clients.producer.Callback;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.apache.kafka.clients.producer.RecordMetadata;
public class SyncProducer {
public static void main(String[] args) throws InterruptedException, ExecutionException{
Properties props = new Properties();
props.put("bootstrap.servers", "127.0.0.1:9092");//kafka 集群, broker-list
props.put("acks", "all");
props.put("retries", 1);//重试次数
props.put("batch.size", 16384);//批次大小
props.put("linger.ms", 1);//等待时间
props.put("buffer.memory", 33554432);//RecordAccumulator 缓冲区大小
props.put("key.serializer",
"org.apache.kafka.common.serialization.StringSerializer");
props.put("value.serializer",
"org.apache.kafka.common.serialization.StringSerializer");
// props.put(ProducerConfig.PARTITIONER_CLASS_CONFIG, MyPartitioner.class);
Producer<String, String> producer = new KafkaProducer<>(props);
for (int i = 0; i < 100; i++) {
producer.send(new ProducerRecord<String, String>("test", "test - 1"), new Callback() {
//回调函数, 该方法会在 Producer 收到 ack 时调用,为异步调用
@Override
public void onCompletion(RecordMetadata metadata, Exception exception) {
if (exception == null) {
System.out.println(metadata.partition() + " - " + metadata.offset());
} else {
exception.printStackTrace();
}
}
}).get();
}
producer.close();
}
}
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