Spring 工厂创建监听队列的同步消费者

Question

我是 Spring 大学项目工作的引导和编码新手，我需要一些帮助。我想创建一个 spring 启动应用程序，它会启动一个工厂 class，它将创建并启动 10 个同步客户端。这些客户端必须不断地监听队列。下面是我的代码。我不确定，如果我在正确的轨道上并且需要一些帮助。我的实施是否正确？如何确保创建了 10 个同步客户端？如何使用标识符来识别哪个消息客户端处理了消息？

Application.java

@SpringBootApplication
public class Application {

    @Bean
    public MesFactory mesFactory(){
        return new MesFactory();
    }

    public static void main(String... args) {
        SpringApplication.run(Application.class, args);
    }
}

public class MesFactory {

    private ExecutorService executorService = 

    Executors.newFixedThreadPool(10);

    @PostConstruct
    public void build(){
        executorService.execute(() -> new MesClient());
    }
}


@Component
@EnableJms
public class MesClient {

    private static final Log log = LogFactory.getLog(MesClient.class);

    @Autowired
    private JmsTemplate jmsTemplate;

    @JmsListener(destination = "incoming-messages-queue")
    public void receive(String message) {
        System.out.println("Received <" + message + ">");
        doPerformMessage(message);
    }

    public void doPerformMessage(String message){
       // parsing happens here
    } 

    @Bean
    ConnectionFactory connectionFactory() {
        return new RMQConnectionFactory();
    }

    @Scheduled(fixedRate = 100000000L)
    public void sendMessage() {

        String message= "Hi World";

        // Coerce a javax.jms.MessageCreator
        MessageCreator messageCreator = (Session session) -> {
            return session.createTextMessage(message);
        };

        // And publish to RabbitMQ using Spring's JmsTemplate
        jmsTemplate.send("incoming-messages-queue", messageCreator);
    }

}

Answer 1

设置启动属性...

spring.jms.listener.concurrency=10
spring.jms.listener.max-concurrency=10

侦听器容器将启动 10 个线程 - 每个都从同一个队列中消费；他们将调用 JMS 侦听器方法。

查看 Spring Boot documentation - Application Properties 并向下滚动到 JMS 部分。

Spring 工厂创建监听队列的同步消费者

Spring Factory to create synchronous consumers listening to the queue

java

activemq

spring-jms

spring-boot