发送kafka消息
2023-05-06 本文已影响0人
BestFei
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();
}
}