SpringBoot：接入RabbitMQ（完整版）

pom

	org.springframework.boot
	spring-boot-starter-amqp

Producer

• application.yml

server:
  port: 8001
  servlet:
    context-path: /
spring:
  application:
    name: rabbit-producer
  http:
    encoding:
      charset: UTF-8
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    default-property-inclusion: NON_NULL
    time-zone: GMT+8
  rabbitmq:
    # 集群地址，用逗号分隔
    addresses: 192.168.11.71:5672,192.168.11.72:5672,192.168.11.71:5673
    connection-timeout: 15000
    password: guest
    # 使用启用消息确认模式
    publisher-confirms: true
    username: guest
    virtual-host: /

• RabbitSender

import java.util.Map;
import java.util.UUID;

import org.springframework.amqp.AmqpException;
import org.springframework.amqp.core.MessagePostProcessor;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.core.RabbitTemplate.ConfirmCallback;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.stereotype.Component;

@Component
public class RabbitSender {

	@Autowired
	private RabbitTemplate rabbitTemplate;
	
	/**
	 * 	这里就是确认消息的回调监听接口，用于确认消息是否被broker所收到
	 */
	final ConfirmCallback confirmCallback = new RabbitTemplate.ConfirmCallback() {
		/**
		 * 	@param ack broker 是否落盘成功
		 * 	@param cause 失败的一些异常信息
		 */
		@Override
		public void confirm(CorrelationData correlationData, boolean ack, String cause) {
			System.err.println("消息ACK结果:" + ack + ", correlationData: " + correlationData.getId());
		}
	};
	
	/**
	 * 	对外发送消息的方法
	 * @param message 	具体的消息内容
	 * @param properties	额外的附加属性
	 * @throws Exception
	 */
	public void send(Object message, Map<String, Object> properties) throws Exception {
		
		MessageHeaders mhs = new MessageHeaders(properties);
		Message<?> msg = MessageBuilder.createMessage(message, mhs);
		
		rabbitTemplate.setConfirmCallback(confirmCallback);
		
		// 	指定业务唯一的iD
		CorrelationData correlationData = new CorrelationData(UUID.randomUUID().toString());
		
		MessagePostProcessor mpp = new MessagePostProcessor() {
			
			@Override
			public org.springframework.amqp.core.Message postProcessMessage(org.springframework.amqp.core.Message message)
					throws AmqpException {
				System.err.println("---> post to do: " + message);
				return message;
			}
		};
		
		rabbitTemplate.convertAndSend("exchange-1", "springboot.rabbit", msg, mpp, correlationData);
	
	}
}

Consumer

• application.yml

server:
  port: 8002
  servlet:
    context-path: /
spring:
  application:
    name: rabbit-producer
  http:
    encoding:
      charset: UTF-8
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    default-property-inclusion: NON_NULL
    time-zone: GMT+8
  rabbitmq:
    addresses: 192.168.11.71:5672,192.168.11.72:5672,192.168.11.71:5673
    connection-timeout: 15000
    listener:
      # 最好不要在代码里写死配置信息，尽量使用这种方式也就是配置文件的方式
      # 在代码里使用 	${}	方式进行设置配置: ${spring.rabbitmq.listener.order.exchange.name}
      order:
        exchange:
          durable: true
          key: order.*
          name: order-exchange
          type: topic
      # 表示消费者消费成功消息以后需要手工的进行签收(ack)，默认为auto
      simple:
        acknowledge-mode: manual
        concurrency: 5
        max-concurrency: 10
        prefetch: 1
    password: guest
    username: guest
    virtual-host: /

• RabbitReceive

import org.springframework.amqp.rabbit.annotation.Exchange;
import org.springframework.amqp.rabbit.annotation.Queue;
import org.springframework.amqp.rabbit.annotation.QueueBinding;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.support.AmqpHeaders;
import org.springframework.messaging.Message;
import org.springframework.stereotype.Component;

import com.rabbitmq.client.Channel;

@Component
public class RabbitReceive {
	
	/**
	 * 	组合使用监听
	 * 	@RabbitListener @QueueBinding @Queue @Exchange
	 * @param message
	 * @param channel
	 * @throws Exception
	 */
	@RabbitListener(bindings = @QueueBinding(
					value = @Queue(value = "queue-1", durable = "true"),
					exchange = @Exchange(name = "exchange-1",
					durable = "true",
					type = "topic",
					ignoreDeclarationExceptions = "true"),
					key = "springboot.*"
				)
			)
	@RabbitHandler
	public void onMessage(Message message, Channel channel) throws Exception {
		//	1. 收到消息以后进行业务端消费处理
		System.err.println("-----------------------");
		System.err.println("消费消息:" + message.getPayload());

		//  2. 处理成功之后 获取deliveryTag 并进行手工的ACK操作, 因为我们配置文件里配置的是 手工签收
		//	spring.rabbitmq.listener.simple.acknowledge-mode=manual
		Long deliveryTag = (Long)message.getHeaders().get(AmqpHeaders.DELIVERY_TAG);
		channel.basicAck(deliveryTag, false);
	}
	
}