kafka中生产者客户端代码示例

kafka中生产者示例代码：

import org.apache.kafka.clients.producer.*;
import org.apache.kafka.common.serialization.StringSerializer;

import java.util.Properties;
import java.util.concurrent.Future;

public class Producer {
    public static final String brokerList = "10.201.83.207:9092,10.202.82.49:9092,10.202.43.113:9092";
    public static final String topic = "test-001";

    public static Properties initConfig() {
        Properties properties = new Properties();
        properties.setProperty(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, brokerList);
        properties.setProperty(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());
        properties.setProperty(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());
        properties.setProperty(ProducerConfig.CLIENT_ID_CONFIG, "test-001");
        //可重试异常，配置retries参数后再可重试的次数内发送成功不会抛出异常
        properties.setProperty(ProducerConfig.RETRIES_CONFIG,"10");
        return properties;
    }

    public static void sendWithCallback(Properties props )throws Exception{
        KafkaProducer producer = new KafkaProducer(props);
        ProducerRecord record = new ProducerRecord<>(topic, "hello world");
        producer.send(record, new Callback() {
            @Override
            public void onCompletion(RecordMetadata metadata, Exception e) {
                if(e != null){
                    System.out.println("send failed and error msg is "+e.getMessage());
                }else {
                    System.out.println("callback send success , topic="+metadata.topic()+" , partition="+metadata.partition());
                }
            }
        });
    }

    public static void sendWithFuture(Properties props)throws Exception{
        KafkaProducer producer = new KafkaProducer(props);
        ProducerRecord record = new ProducerRecord<>(topic, "hello world");
        Future future = producer.send(record);
        RecordMetadata metadata = future.get();
        System.out.println("future send success , topic="+metadata.topic()+" , partition="+metadata.partition());
    }
    public static void main(String[] args) throws Exception {
        Properties props = initConfig();
        sendWithCallback(props);
        sendWithFuture(props);
        Thread.sleep(100000);
    }