Spring RabbitMQ 异步消费

Spring RabbitMQ

1。消费端配置异步消费几种方式，最简洁方式为第三种

1）配置文件配置Container-listener指定处理对象但不指定方法，对应对象实现MessageListener接口，覆写onMessage方法

ref="consumerReceiver"/>

public class MessageReceiver implements MessageListener {

public void onMessage(Message message) {

      System.out.println(message.getBody());

}

}

2）配置文件配置Container-listener指定处理对象但指定方法，对应对象为普通对象，不需要实现MessageListener接口

ref="consumerReceiver" method="messageHandler" priority="10"/>

@Component

public class MessageReceiver {

public void messageHandler(User user) {

         System.out.println(user.getName());

}

}

3）配置开启Rabbit注解，注册 SimpleRabbitListenerContainerFactory并配置参数，消费对象（不需要实现继承任何类）使用注解标记，推荐此方式

@Component

public　class MyService {

@RabbitListener(bindings = @QueueBinding( value = @Queue(value = "myQueue", durable = "true"), exchange = @Exchange(value = "auto.exch", ignoreDeclarationExceptions = "true"), key = "orderRoutingKey") )

public　void processOrder(User user) { ... }

 }