如何在摘取Amqp/ RabbitMQ队列之前进行“检查”(Spring AMQP)

import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.core.Message;
import org.springframework.stereotype.Component;

@Component
public class MyMessageListener {

    @RabbitListener(queues = "myQueue")
    public void onMessage(Message message) {
        // 在这里进行你的检查逻辑
        if (shouldProcess(message)) {
            // 处理消息
            processMessage(message);
        } else {
            // 不处理消息，可能将其放回队列或记录日志
            System.out.println("Message not processed: " + message);
        }
    }

    private boolean shouldProcess(Message message) {
        // 实现你的检查逻辑
        // 例如，检查消息内容是否符合某些条件
        return true; // 或者根据检查结果返回true或false
    }

    private void processMessage(Message message) {
        // 实现消息处理逻辑
        System.out.println("Processing message: " + message);
    }
}

import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.listener.api.ChannelAwareMessageListener;
import org.springframework.stereotype.Component;

@Component
public class MyChannelAwareMessageListener implements ChannelAwareMessageListener {

    @Override
    public void onMessage(Message message, Channel channel) throws Exception {
        // 在这里进行你的检查逻辑
        if (shouldProcess(message)) {
            // 处理消息
            processMessage(message);
        } else {
            // 不处理消息，可能将其放回队列或记录日志
            System.out.println("Message not processed: " + message);
        }
    }

    private boolean shouldProcess(Message message) {
        // 实现你的检查逻辑
        return true; // 或者根据检查结果返回true或false
    }

    private void processMessage(Message message) {
        // 实现消息处理逻辑
        System.out.println("Processing message: " + message);
    }
}

import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class RabbitConfig {

    @Bean
    public SimpleMessageListenerContainer messageListenerContainer(ConnectionFactory connectionFactory,
                                                                   MyChannelAwareMessageListener myChannelAwareMessageListener) {
        SimpleMessageListenerContainer container = new SimpleMessageListenerContainer();
        container.setConnectionFactory(connectionFactory);
        container.setQueueNames("myQueue");
        container.setMessageListener(myChannelAwareMessageListener);
        return container;
    }
}