RabbitMQ 메시지 생산자 와 소비자

import java.util.HashMap;
import java.util.Map;

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

public class Producer {

    public static void main(String[] args) throws Exception {
        //1.      ,     
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setHost("127.0.0.1");
        connectionFactory.setPort(5672);
        connectionFactory.setVirtualHost("/");
        //2.    
        Connection connection = connectionFactory.newConnection();
        //3.      
        Channel channel = connection.createChannel();
        Map<String,Object> headers = new HashMap<>();
        headers.put("my1", "111");
        headers.put("my2", "222");
        AMQP.BasicProperties properties = new AMQP.BasicProperties.Builder()
                .deliveryMode(2)//2        ，     ，     ，      。1       ：          bug    ，       
                .contentEncoding("UTF-8")
                .expiration("10000")//    
                .headers(headers)//     
                .build();
        
        
        //4.    ,exchange,routingkey,props：      ,body:    
        for (int i = 0; i < 5; i++) {
            String msg = "lulu     ";
            channel.basicPublish("", "lulu", properties, msg.getBytes());
            System.out.println(msg);
        }
        //5.    ：    
        channel.close();
        connection.close();
        
    }
}

import java.util.Map;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.QueueingConsumer;
import com.rabbitmq.client.QueueingConsumer.Delivery;

public class Consumer {
    public static void main(String[] args) throws Exception {
        //1.      ,     
        ConnectionFactory connectionFactory = new ConnectionFactory();
        connectionFactory.setHost("127.0.0.1");
        connectionFactory.setPort(5672);
        connectionFactory.setVirtualHost("/");
        //2.    
        Connection connection = connectionFactory.newConnection();
        //3.      
        Channel channel = connection.createChannel();
        //4.         1.    ,2.   ，3.  ：         ,4.  exchange     5.    
        String queueName = "lulu";
        channel.queueDeclare(queueName, true, false, false, null);
        //5.       
        QueueingConsumer queueingConsumer = new QueueingConsumer(channel);
        //6.  channel   1.    ，2.     3.     
        channel.basicConsume(queueName, true, queueingConsumer);
        //7.            。                                                                           
        while (true) {
            System.out.println("      ");
            
            Delivery delivery = queueingConsumer.nextDelivery();//          。
            
            String msg = new String(delivery.getBody());//    body
            Map<String,Object> headers = delivery.getProperties().getHeaders();
            System.out.println(headers.get("my1"));
            System.out.println(headers.get("my2"));
            //Envelope envelope = delivery.getEnvelope();//         

            
        }

 public void fireEngineSend2(String message) {
    try {
      //     
      factory = new ConnectionFactory();
      //   
      factory.setHost(host);
      factory.setUsername(username);
      factory.setPassword(password);
      factory.setPort(port);
      factory.setVirtualHost("/");
      try (Connection connection = factory.newConnection();
          Channel channel = connection.createChannel()) {
        channel.queueDeclare(queueName, false, false, false, null);
        channel.basicPublish("", queueName, null, message.getBytes(StandardCharsets.UTF_8));
        System.out.println(" [x] Sent '" + message + "'");
      }
    } catch (IOException e) {
      e.printStackTrace();
    } catch (TimeoutException e) {
      e.printStackTrace();
    } finally {
      try {
        //     
        if (channel != null) {
          channel.close();
        }
        //     
        if (connection != null) {
          connection.close();
        }
      } catch (IOException e) {
        e.printStackTrace();
      } catch (TimeoutException e) {
        e.printStackTrace();
      }
    }
  }

  public void fireEngineReceive2() {
    try {
      //     
      factory = new ConnectionFactory();
      //   
      factory.setHost(host);
      factory.setUsername(username);
      factory.setPassword(password);
      factory.setPort(port);
      factory.setVirtualHost("/");
      //     
      Connection connection = factory.newConnection();
      Channel channel = connection.createChannel();

      channel.queueDeclare(queueName, false, false, false, null);
      System.out.println(" [*] Waiting for messages. To exit press CTRL+C");

      DeliverCallback deliverCallback = (consumerTag, delivery) -> {
        String message = new String(delivery.getBody(), "UTF-8");
        System.out.println(" [x] Received '" + message + "'");
      };
      channel.basicConsume(queueName, true, deliverCallback, consumerTag -> {
      });

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

  public void fireEngineSend(){

    try {
    //     
    factory = new ConnectionFactory();
    //   
    factory.setHost(host);
    factory.setUsername(username);
    factory.setPassword(password);
    factory.setPort(port);
    factory.setVirtualHost("/");
    Connection connection = null;
      connection = factory.newConnection();
      Channel channel = connection.createChannel();

      String exchange = "fire_engine";
      String routingKey = "consumer.save";
      String msg = "Hello RabbitMQ Consumer Message";

      for(int i =0; i<5; i ++) {
        try {
          channel.basicPublish(exchange, routingKey, true, null, msg.getBytes());
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
    } catch (IOException e) {
      e.printStackTrace();
    } catch (TimeoutException e) {
      e.printStackTrace();
    }

  }

  public void fireEngineReceive() {
    try {
      //     
      factory = new ConnectionFactory();
      //   
      factory.setHost(host);
      factory.setUsername(username);
      factory.setPassword(password);
      factory.setPort(port);
      Connection connection = null;
      connection = factory.newConnection();
      Channel channel = connection.createChannel();
      channel.exchangeDeclare(exchangeName, "topic", true, false, null);
      channel.queueDeclare(queueName, true, false, false, null);
      channel.queueBind(queueName, exchangeName, routingKey);
      channel.basicConsume(queueName, true, new MyConsumer(channel));

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

/**
 *      Consumer
 */
public class MyConsumer extends DefaultConsumer {

    public MyConsumer(Channel channel){
        super(channel);
    }


    @Override
    public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
        System.err.println("-----------consume message----------");
        System.err.println("consumerTag: " + consumerTag);
        System.err.println("envelope: " + envelope);
        System.err.println("properties: " + properties);
        System.err.println("body: " + new String(body));
    }
}

/**
 * @author MrBird
 */
@EnableAsync
@SpringBootApplication
@EnablePatrolCloudResourceServer
@EnableTransactionManagement
@EnableDistributedTransaction
@EnableBinding(Sink.class)
@MapperScan("com.data.mapper")
public class PatrolServerDataProcessApplication {

    public static void main(String[] args) {
        new SpringApplicationBuilder(PatrolServerDataProcessApplication.class)
                .web(WebApplicationType.SERVLET)
                .run(args);
      RabbitmqUtil rabbitmqUtil = new RabbitmqUtil();
      rabbitmqUtil.fireEngineSend(); //   
      rabbitmqUtil.fireEngineReceive();
    }
}

  @StreamListener(Sink.INPUT)
  public void handle(Person person) {
    System.out.println("Received: " + person);
  }

  public static class Person {
    private String name;
    public String getName() {
      return name;
    }
    public void setName(String name) {
      this.name = name;
    }
    public String toString() {
      return this.name;
    }
  }