rabbitmq实战指南(rabbitmq常用命令)

1.springboot 配置bean

@Configuration
public class RabbitMQConfig {

    @Bean
    public ConnectionFactory getFactory() {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setPort(5672);
        factory.setVirtualHost("/zwe-api");
        return factory;
    }
}

2.生产者

package top.zwsave.zweapi.task;

import com.rabbitmq.client.*;
import lombok.extern.java.Log;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.core.Queue;
import org.springframework.messaging.handler.annotation.Headers;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;
import top.zwsave.zweapi.db.dao.SimpleMsgRefDao;
import top.zwsave.zweapi.db.pojo.SimpleMsgEntity;
import top.zwsave.zweapi.db.pojo.SimpleMsgRefEntity;
import top.zwsave.zweapi.db.pojo.SystemMsgEntity;
import top.zwsave.zweapi.exception.ZweApiException;

import javax.annotation.Resource;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeoutException;


@Log
@Component
public class FanoutMessageTask {

    @Resource
    ConnectionFactory factory;


    public void send() {
        try (Channel channel = factory.newConnection().createChannel()) {
            channel.exchangeDeclare("exchangeName", BuiltinExchangeType.FANOUT); 
            String msg = "Hello --- Ja7"
            HashMap hashMap = new HashMap();
            hashMap.put("id", "10000");
            AMQP.BasicProperties build = new AMQP.BasicProperties().builder().headers(hashMap).build(); // 设置头信息
            channel.basicPublish("exchangeName", "", build, msg.getBytes("UTF-8"));
        } catch (IOException e) {
            e.printStackTrace();
        } catch (TimeoutException e) {
            e.printStackTrace();
        }
    }
}

3.消费者

package top.zwsave.zweapi.task;

import com.rabbitmq.client.*;
import lombok.extern.java.Log;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.core.Queue;
import org.springframework.messaging.handler.annotation.Headers;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;
import top.zwsave.zweapi.db.dao.SimpleMsgRefDao;
import top.zwsave.zweapi.db.pojo.SimpleMsgEntity;
import top.zwsave.zweapi.db.pojo.SimpleMsgRefEntity;
import top.zwsave.zweapi.db.pojo.SystemMsgEntity;
import top.zwsave.zweapi.exception.ZweApiException;

import javax.annotation.Resource;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeoutException;


@Log
@Component
public class FanoutMessageTask {

    

    @Resource
    ConnectionFactory factory;

    public void receive() {
        try (Channel channel = factory.newConnection().createChannel()){
            channel.exchangeDeclare("exchangeName", "fanout");
            channel.queueDeclare("queueName", false, false, false, null);
            channel.queueBind("queue", "exchangeName", "");//把Queue、Exchange绑定
            channel.basicQos(1);


            Consumer callBack = new DefaultConsumer(channel) {
                @Override
                public void handleDelivery(String consumerTag,
                                           Envelope envelope,
                                           AMQP.BasicProperties properties, byte[] body) throws IOException {
                    System.out.println("=========业务代码========");

                    //路由的key
                    String routingKey = envelope.getRoutingKey();
                    //获取交换机信息
                    String exchange = envelope.getExchange();
                    //获取消息ID
                    long deliveryTag = envelope.getDeliveryTag();
                    
                    // 获取头信息
                    String id = properties.getHeaders().get("id").toString();




                    //获取消息信息
                    String message = new String(body,"utf-8");
                    System.out.println(
                            "routingKey:" + routingKey +
                                    ",exchange:" + exchange +
                                    ",deliveryTag:" + deliveryTag +
                                    ",message:" + message);

                    channel.basicAck(envelope.getDeliveryTag(),false);
                }
            };
            // 获取队列信息个数
            AMQP.Queue.DeclareOk declareOk = channel.queueDeclarePassive(queueName);
            int messageCount = declareOk.getMessageCount();
            System.out.println("数量" + messageCount);
            while (messageCount > 0) {
                channel.basicConsume(queueName, false, callBack);
                messageCount--;
            }

        } catch (IOException e) {
            e.printStackTrace();
        } catch (TimeoutException e) {
            e.printStackTrace();
        }
    }

}