kafkaAPI
producer
{
//配置生产者属性(指定多个参数)
Properties prop = new Properties();
//参数配置
//kafka节点的地址
prop.put("bootstrap.servers","bigdata:9092");
//发送消息是否等待应答
prop.put("acks","all");
//配置发送消息失败重试
prop.put("retries","0");
//配置批量处理消息大小
prop.put("batch.size","10241");
//配置批量处理数据延迟
prop.put("linger.ms","5");
//配置内存缓冲大小
prop.put("buffer.memory","12341235");
//消息在发送前必须序列化
prop.put("key.serializer","org.apache.kafka.common.serialization.StringSerializer");
prop.put("value.serializer","org.apache.kafka.common.serialization.StringSerializer");
//2、实例化producer
KafkaProducer<String, String> producer = new KafkaProducer<String, String>(prop);
//3、发送消息
for(int i = 0; i < 99; i++) {
producer.send(new ProducerRecord<String, String>("test", i));
}
//4、释放资源
producer.close();
}
producer接口回调
{
//配置生产者属性(指定多个参数)
Properties prop = new Properties();
//参数配置
//kafka节点的地址
prop.put("bootstrap.servers","bigdata:9092");
//发送消息是否等待应答
prop.put("acks","all");
//配置发送消息失败重试
prop.put("retries","0");
//配置批量处理消息大小
prop.put("batch.size","10241");
//配置批量处理数据延迟
prop.put("linger.ms","5");
//配置内存缓冲大小
prop.put("buffer.memory","12341235");
//消息在发送前必须序列化
prop.put("key.serializer","org.apache.kafka.common.serialization.StringSerializer");
prop.put("value.serializer","org.apache.kafka.common.serialization.StringSerializer");
//2、实例化producer
KafkaProducer<String, String> producer = new KafkaProducer<String, String>(prop);
//3、发送消息
for(int i = 0; i < 99; i++) {
producer.send(new ProducerRecord<String, String>("test", i),new CallBack(){
public void onCompletion(RecordMetadata metadata, Exception exception) {
//如果metadata不为null,拿到当前的数据偏移量与分区
if(metadata != null) {
Sout(metadata.topic() + "------" + metadata.offset() + "------" + metadata.partition());
}
}
});
}
//4、关闭资源
producer.close();
}
kafka的生产者API
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转载自blog.csdn.net/weixin_42898914/article/details/85062909
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