rabbitmq配置，生产者，消费者

• 配置文件
  
• 生产者
  
• 配置消费者容器

@Configuration
public class OverdueRabbitmqConfig {

    @Value("${overdue.listener.prefetch}")
    private Integer prefetch;

    @Value("${overdue.consumer.concurrency}")
    private Integer concurrentconsumers;

    @Bean(name = "overdueConnectionFactory")
    public ConnectionFactory firstConnectionFactory(
            @Value("${spring.rabbitmq.addresses}") String addresses,
            @Value("${spring.rabbitmq.username}") String username,
            @Value("${spring.rabbitmq.password}") String password,
            @Value("${spring.rabbitmq.virtual-host}") String virtualHost) {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
        connectionFactory.setAddresses(addresses);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);
        connectionFactory.setVirtualHost(virtualHost);
        return connectionFactory;
    }

    /**

    /**
     * 声明collection containerFactory
     */
    @Bean(name = "collectionContainerFactory")
    public SimpleRabbitListenerContainerFactory firstSimpleRabbitListenerContainerFactory2(
            SimpleRabbitListenerContainerFactoryConfigurer config,
            @Qualifier("overdueConnectionFactory") ConnectionFactory connectionFactory) {
        SimpleRabbitListenerContainerFactory containerFactory=new SimpleRabbitListenerContainerFactory();
        containerFactory.setAcknowledgeMode(AcknowledgeMode.MANUAL);
        containerFactory.setPrefetchCount(prefetch);
        containerFactory.setMaxConcurrentConsumers(50);
        config.configure(containerFactory,connectionFactory);
        return containerFactory;
    }

}
  

    

• 消费者

 @RabbitHandler
 @RabbitListener(queues = "${collection.consumer.calculate.tn.queue}",
         containerFactory = "collectionContainerFactory",
         concurrency = "${collection.calculate.consumer.concurrency}"
         )
 public void collectionConsumerTn(String testMessage, Channel channel, Message message) {
     try {
         YxPreContractResponse yxPreContractResponse = MAPPER.readValue(testMessage, new TypeReference<YxPreContractResponse>() {});
         
* 
* 在mq管理系统中，添加好队列和交换机，否则可能会链接不上而报错。