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| package com.jhj.kafka.service;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.kafka.core.KafkaOperations;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.kafka.support.KafkaHeaders;
import org.springframework.kafka.support.SendResult;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.stereotype.Service;
import org.springframework.util.concurrent.ListenableFuture;
import org.springframework.util.concurrent.ListenableFutureCallback;
import javax.annotation.Resource;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
@Slf4j
@Service
public class KafkaProducerService {
@Resource
private KafkaTemplate<String, String> kafkaTemplate;
@Resource
private KafkaTemplate<String, String> kafkaTemplateWithTransaction;
public void sendMessageSync(String topic, String key, String message) throws InterruptedException, ExecutionException, TimeoutException {
kafkaTemplate.send(topic, message).get(10, TimeUnit.SECONDS);
log.info("sendMessageSync => topic: {}, key: {}, message: {}", topic, key, message);
}
public void sendMessageGetResult(String topic, String key, String message) throws ExecutionException, InterruptedException {
SendResult<String, String> result = kafkaTemplate.send(topic, message).get();
log.info("sendMessageSync => topic: {}, key: {}, message: {}", topic, key, message);
log.info("The partition the message was sent to: " + result.getRecordMetadata().partition());
}
public void sendMessageAsync(String topic, String message) {
ListenableFuture<SendResult<String, String>> future = kafkaTemplate.send(topic, message);
future.addCallback(new ListenableFutureCallback<SendResult<String, String>>() {
@Override
public void onFailure(Throwable throwable) {
log.error("sendMessageAsync failure! topic : {}, message: {}", topic, message);
}
@Override
public void onSuccess(SendResult<String, String> stringStringSendResult) {
log.info("sendMessageAsync success! topic: {}, message: {}", topic, message);
}
});
}
public void testMessageBuilder(String topic, String key, String message) throws InterruptedException, ExecutionException, TimeoutException {
Message msg = MessageBuilder.withPayload(message)
.setHeader(KafkaHeaders.MESSAGE_KEY, key)
.setHeader(KafkaHeaders.TOPIC, topic)
.setHeader(KafkaHeaders.PREFIX,"kafka_")
.build();
kafkaTemplate.send(msg).get();
}
public void sendMessageInTransaction(String topic, String key, String message) {
kafkaTemplateWithTransaction.executeInTransaction(new KafkaOperations.OperationsCallback<String, String, Object>() {
@Override
public Object doInOperations(KafkaOperations<String, String> kafkaOperations) {
kafkaOperations.send(topic, key, message);
throw new RuntimeException("12");
}
});
}
}
|
