<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.rocketmq</groupId>
        <artifactId>rocketmq-spring-boot-starter</artifactId>
        <version>2.1.0</version>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </dependency>
</dependencies>

rocketmq.name-server=127.0.0.1:9876
rocketmq.producer.group=my-group

import org.apache.rocketmq.spring.core.RocketMQTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class ProducerController {
    @Autowired
    private RocketMQTemplate rocketMQTemplate;
    @GetMapping("/send")
    public String send(String message) {
        rocketMQTemplate.convertAndSend("test-topic", message);
        return "Message: '" + message + "' sent.";
    }
}

import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
import org.apache.rocketmq.spring.core.RocketMQListener;
import org.springframework.stereotype.Service;
@Service
@RocketMQMessageListener(topic = "test-topic", consumerGroup = "my-consumer_test-topic")
public class ConsumerService implements RocketMQListener<String> {
    @Override
    public void onMessage(String message) {
        System.out.printf("------- StringConsumer received: %s \n", message);
    }
}

import org.apache.rocketmq.client.producer.TransactionListener;
import org.apache.rocketmq.client.producer.TransactionMQProducer;
import org.apache.rocketmq.spring.core.RocketMQTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.concurrent.*;
@RestController
public class TransactionProducerController {
    @Autowired
    private RocketMQTemplate rocketMQTemplate;
    @GetMapping("/sendTransaction")
    public String sendTransaction(String message) {
        ExecutorService executor = new ThreadPoolExecutor(5, 10, 200, TimeUnit.MILLISECONDS,
                new ArrayBlockingQueue<>(5000), r -> {
            Thread thread = new Thread(r);
            thread.setName("client-transaction-msg-check-thread");
            return thread;
        });
        TransactionListener transactionListener = new TransactionListenerImpl();
        TransactionMQProducer producer = rocketMQTemplate.createAndStartTransactionMQProducer("transaction-group",transactionListener,executor);
        producer.sendMessageInTransaction("test-topic", "TagA", message, null);
        return "Transaction Message: '" + message + "' sent.";
    }
}

import org.apache.rocketmq.spring.core.RocketMQTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.messaging.support.MessageBuilder;
@RestController
public class OrderlyProducerController {
    @Autowired
    private RocketMQTemplate rocketMQTemplate;
    @GetMapping("/sendOrderly")
    public String sendOrderly(String message) {
        for (int i = 0; i < 100; i++) {
            rocketMQTemplate.syncSendOrderly("orderly_topic", MessageBuilder.withPayload(message + i).build(), "hashkey");
        }
        return "Orderly Message: '" + message + "' sent.";
    }
}

import org.apache.rocketmq.spring.core.RocketMQTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.messaging.support.MessageBuilder;
@RestController
public class DelayProducerController {
    @Autowired
    private RocketMQTemplate rocketMQTemplate;
    @GetMapping("/sendDelay")
    public String sendDelay(String message) {
        rocketMQTemplate.syncSend("delay_topic", MessageBuilder.withPayload(message).build(), 1000, 4);
        return "Delay Message: '" + message + "' sent.";
    }
}