Kafka 事务消息

1、Kafka 事务消息通过配置文件设置开启，设置方法如下：

transaction-id-prefix: transaction-id-

2、使用@Transactional 注解，在类或者方法上使用

public interface SendMessageService {/** * 事务消息 */void sendTransactionMessage(String message);}

@Service@Transactional(rollbackFor = Exception.class)public class SendMessageServiceImpl implements SendMessageService {@Resourceprivate KafkaTemplate kafkaTemplate;@Overridepublic void sendTransactionMessage(String message) {System.out.println(message);for (int i = 1; i < 10; i++) {OrderMsg orderMsg = new OrderMsg(i+"", i+"-"+message);kafkaTemplate.send("topic08", orderMsg);kafkaTemplate.flush();if (i==5) {int j = 1/0;}}}}

3、实现一个接口，方便进行测试

/** * 测试事务消息 * 配置文件得修改 * @param message */@GetMapping("/user/transaction/{message}")public void sendTransactionUserMessage(@PathVariable("message") String message) {sendMessageService.sendTransactionMessage(message);}