ps-message/src/main/java/com/uas/ps/message/rabbit/RabbitConfig.java

package com.uas.ps.message.rabbit;

import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.annotation.PostConstruct;
import java.util.HashMap;
import java.util.Map;

/**
 * rabbit 配置
 * @author liuam
 * @since 2018/9/13 0013 下午 14:22
 */
@Configuration
public class RabbitConfig {

    @Autowired
    private AmqpAdmin amqpAdmin;

    @Autowired
    private InquiryMessageListener inquiryMessageListener;

    @PostConstruct
    public void init() {

        Map<String, Object> args = new HashMap<String, Object>();
        args.put("x-dead-letter-exchange", "");
        args.put("x-dead-letter-routing-key", RabbitConstants.DEAD_LETTER_ROUTING_KEY);
        amqpAdmin.declareQueue(new Queue(RabbitConstants.INQUIRY_MESSAGE + RabbitConstants.DELAY_QUEUE_NAME_SUFFIX, true, false, false, args));
    }


    @Bean
    public SimpleMessageListenerContainer messageListenerContainer(RabbitTemplate rabbitTemplate) {
        rabbitTemplate.setMessageConverter(new Jackson2JsonMessageConverter());
        SimpleMessageListenerContainer container = new SimpleMessageListenerContainer(rabbitTemplate.getConnectionFactory());

        container.setQueues(new Queue(RabbitConstants.INQUIRY_MESSAGE));
        container.setExposeListenerChannel(true);
        container.setMaxConcurrentConsumers(RabbitConstants.MAXCONCURRENTCONSUMERS);
        container.setConcurrentConsumers(RabbitConstants.CONCURRENTCONSUMERS);
        //设置手动应答
        container.setAcknowledgeMode(AcknowledgeMode.MANUAL);
        container.setMessageListener(inquiryMessageListener);
        container.setPrefetchCount(RabbitConstants.PREFETCH_COUNT);
        return container;
    }

}