springboot 2.0+整合RabbitMQ

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>

# =========消息队列（消息总线用）=========
spring:
  rabbitmq:
    host: ${RABBIT_MQ_HOST:192.168.2.166}
    port:  ${RABBIT_MQ_PORT:5672}
    username: guest
    password: guest
    virtual-host: /

import java.util.Date;
 
import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
 
@Component
public class Sender {
 
    @Autowired
    private AmqpTemplate rabbitTemplate;
 
    public void send() {
        String context = "hello " + new Date();
        System.out.println("Sender : " + context);
        this.rabbitTemplate.convertAndSend("hello", context);
    }
}

import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;
 
@Component
@RabbitListener(queues = "hello")
public class Receiver {
 
    @RabbitHandler
    public void process(String hello) {
        System.out.println("Receiver : " + hello);
    }
}

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
import com.rabbitmq.client.impl.AMQImpl.Queue;
 
//这里可以配置具体的队列
@Configuration
public class RabbitConfig {
 
    @Bean
    public Queue helloQueue() {
        return new Queue();
    }
}

@Configuration
public class RabbitConfig {
    private final Logger logger = LoggerFactory.getLogger(this.getClass());
    @Value("${spring.rabbitmq.host}")
    private String host;
    @Value("${spring.rabbitmq.port}")
    private int port;
    @Value("${spring.rabbitmq.username}")
    private String username;
    @Value("${spring.rabbitmq.password}")
    private String password;
    public static final String EXCHANGE_A = "my-mq-exchange_A";
    public static final String EXCHANGE_B = "my-mq-exchange_B";
    public static final String EXCHANGE_C = "my-mq-exchange_C";
    public static final String QUEUE_A = "QUEUE_A";
    public static final String QUEUE_B = "QUEUE_B";
    public static final String QUEUE_C = "QUEUE_C";
    public static final String ROUTINGKEY_A = "spring-boot-routingKey_A";
    public static final String ROUTINGKEY_B = "spring-boot-routingKey_B";
    public static final String ROUTINGKEY_C = "spring-boot-routingKey_C";
    @Bean
    public ConnectionFactory connectionFactory() {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory(host,port);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);
        connectionFactory.setVirtualHost("/");
        connectionFactory.setPublisherConfirms(true);
        return connectionFactory;
    }
    @Bean
    @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
    //必须是prototype类型
    public RabbitTemplate rabbitTemplate() {
        RabbitTemplate template = new RabbitTemplate(connectionFactory());
        return template;
    }
 
    /**
     * 针对消费者配置
     * 1. 设置交换机类型
     * 2. 将队列绑定到交换机
     FanoutExchange: 将消息分发到所有的绑定队列，无routingkey的概念
     HeadersExchange ：通过添加属性key-value匹配
     DirectExchange:按照routingkey分发到指定队列
     TopicExchange:多关键字匹配
     */
    @Bean
    public DirectExchange defaultExchange() {
        return new DirectExchange(EXCHANGE_A);
    }
 
    /**
     * 获取队列A
     * @return
     */
    @Bean
    public Queue queueA() {
        return new Queue(QUEUE_A, true); //队列持久
    }
 
    @Bean
    public Binding binding() {
        return BindingBuilder.bind(queueA()).to(defaultExchange()).with(RabbitConfig.ROUTINGKEY_A);
    }
 
    @Bean
    public Binding bindingB(){
        return BindingBuilder.bind(queueB()).to(defaultExchange()).with(RabbitConfig.ROUTINGKEY_B);
    }
}

@Component
@RabbitListener(queues = RabbitConfig.QUEUE_A)
public class MsgReceiver {
    private final Logger logger = LoggerFactory.getLogger(this.getClass());
    @RabbitHandler
    public void process(String content) {
        logger.info("接收处理队列A当中的消息： " + content);
    }
}