springboot整合rocketmq实现分布式事务

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.0.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-WEB</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastJSON</artifactId>
            <version>1.2.71</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-collections4</artifactId>
            <version>4.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.RocketMQ/rocketmq-spring-boot-starter -->
        <dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-spring-boot-starter</artifactId>
            <version>2.0.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-client</artifactId>
            <version>4.3.2</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-Maven-plugin</artifactId>
                <version>2.3.0.RELEASE</version>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

rocketmq:
  name-server: 192.168.38.50:9876
  producer:
    group: transcation-group

@RocketMQtransactionListener(txProducerGroup = "transaction-producer-group")
@Slf4j
public class TransactionListenerImpl implements RocketMQLocalTransactionListener {

    private static Map<String, RocketMQLocalTransactionState> STATE_MAP = new HashMap<>();

    
    @Override
    public RocketMQLocalTransactionState executeLocalTransaction(Message message, Object o) {
        String transId = (String) message.getHeaders().get(RocketMQHeaders.TRANSACTION_ID);
        try {
            System.out.println("用户A账户减500元.");
            System.out.println("用户B账户加500元.");
            STATE_MAP.put(transId, RocketMQLocalTransactionState.COMMIT);
            return RocketMQLocalTransactionState.COMMIT;
        } catch (Exception e) {
            e.printStackTrace();
        }

        STATE_MAP.put(transId, RocketMQLocalTransactionState.ROLLBACK);
        return RocketMQLocalTransactionState.UNKNOWN;

    }

    
    @Override
    public RocketMQLocalTransactionState checkLocalTransaction(Message message) {
        String transId = (String) message.getHeaders().get(RocketMQHeaders.TRANSACTION_ID);
        log.info("回查消息 -> transId ={} , state = {}", transId, STATE_MAP.get(transId));
        return STATE_MAP.get(transId);
    }
}

@Component
@Slf4j
public class SpringTransactionProducer {

    @Autowired
    private RocketMQTemplate rocketMQTemplate;

    
    public void sendMsg(String topic, String msg) {
        Message<String> message = MessageBuilder.withPayload(msg).build();
        this.rocketMQTemplate.sendMessageInTransaction("transaction-producer-group", topic, message, null);
        log.info("发送成功");
    }
}

@Component
@RocketMQMessageListener(topic = "pay_topic",
        consumerGroup = "transaction-consumer-group",
        selectorExpression = "*")
@Slf4j
public class SpringTxConsumer implements RocketMQListener<String> {

    @Override
    public void onMessage(String msg) {
        log.info("接收到消息 -> {}", msg);
    }
}

@RestController
@RequestMapping("/producer")
public class ProducerController {

    @Autowired
    private SpringTransactionProducer springTransactionProducer;

    @GetMapping("/sendMsg")
    public String sendMsg() {
        springTransactionProducer.sendMsg("pay_topic", "用户A账户减500元,用户B账户加500元。");
        return "发送成功";
    }

}

@SpringBootApplication
public class RocketApplication {

    public static void main(String[] args) {
        SpringApplication.run(RocketApplication.class);
    }

}