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发送kafka消息

发送kafka消息

作者: BestFei | 来源:发表于2023-05-06 10:02 被阅读0次
    package com.test.kafkaMessage;
    
    import org.apache.kafka.clients.producer.KafkaProducer;
    import org.apache.kafka.clients.producer.ProducerRecord;
    
    import java.util.Properties;
    
    public class SendOrderMessageTest {
    
        public KafkaProducer<String, String> producer;
        public final static String TOPIC = "strategy_pm_in";
    
        private SendOrderMessageTest() {
            Properties props = new Properties();
            props.put("bootstrap.servers", "10.100.11.201:9092,10.100.11.202:9092,10.100.11.203:9092");//xxx服务器ip
            props.put("acks", "all");//所有follower都响应了才认为消息提交成功,即"committed"
            props.put("retries", 0);//retries = MAX 无限重试,直到你意识到出现了问题:)
            props.put("batch.size", 16384);//producer将试图批处理消息记录,以减少请求次数.默认的批量处理消息字节数
            //batch.size当批量的数据大小达到设定值后,就会立即发送,不顾下面的linger.ms
            props.put("linger.ms", 1);//延迟1ms发送,这项设置将通过增加小的延迟来完成--即,不是立即发送一条记录,producer将会等待给定的延迟时间以允许其他消息记录发送,这些消息记录可以批量处理
            props.put("buffer.memory", 33554432);//producer可以用来缓存数据的内存大小。
            props.put("key.serializer",
                    "org.apache.kafka.common.serialization.IntegerSerializer");
            props.put("value.serializer",
                    "org.apache.kafka.common.serialization.StringSerializer");
    
            producer = new KafkaProducer<String, String>(props);
        }
    
        public void sendKafkaMessageString() throws InterruptedException {
    
            int messageNo = 1;
            final int COUNT = 2;
            while(messageNo < COUNT) {
                String key = String.valueOf(messageNo);
                //String data = String.format("hello KafkaProducer message %s from hubo 06291018 ", key);
                String data = String.format("best test zzz |kk");
                Thread.sleep(1);  //1000代表1秒
                System.out.println(messageNo);
                try {
                    producer.send(new ProducerRecord<String, String>(TOPIC, data));
                } catch (Exception e) {
                    e.printStackTrace();
                }
                messageNo++;
            }
            producer.close();
        }
    
        public static void main(String[] args) throws InterruptedException {
            new SendStopOrderMessageTest().sendKafkaMessageString();
        }
    
    
    }
    

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