Embedded ActiveMQ broker in java

Embedded ActiveMQ broker in java

Guide package

<dependency>
    <groupId>org.apache.activemq</groupId>
    <artifactId>activemq-all</artifactId>
    <version>5.15.9</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.9.7</version>
</dependency>

Embedded broker startup method

package com.mq;

import org.apache.activemq.broker.BrokerService;

public class EebedBroker {

    public static void main(String[] args) throws Exception {
        BrokerService brokerService=new BrokerService();
        brokerService.setUseJmx(true);
        brokerService.addConnector("tcp://localhost:61616");
        brokerService.start();
    }
}

The producers and consumers for testing
consumer

package com.mq;

import org.apache.activemq.ActiveMQConnectionFactory;
import javax.jms.*;

public class QueueProducer {

    public static void main(String[] args) throws JMSException {
        //创建连接工厂
        ActiveMQConnectionFactory activeMQConnectionFactory=new ActiveMQConnectionFactory("tcp://localhost:61616");
        //创建连接
        Connection connection=activeMQConnectionFactory.createConnection();
        //连接
        connection.start();
        //创建会话
        Session session=connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        //创建队列
        Queue queue=session.createQueue("queue_test");
        //创建消息生产者
        MessageProducer messageProducer=session.createProducer(queue);
        //创建消息对象
        for (int i=0;i<=3;i++){
            String msg = "千里之行，始于足下";
            Message message = session.createTextMessage(msg);
            //发送消息
            messageProducer.send(message);
        }
        //关闭所有连接
        messageProducer.close();
        session.close();
        connection.close();
    }
}

consumer

package com.mq;

import org.apache.activemq.ActiveMQConnectionFactory;
import javax.jms.*;
import java.io.IOException;

public class QueueConsumer {

    public static void main(String[] args) throws JMSException, IOException {
        //创建连接工厂
        ActiveMQConnectionFactory activeMQConnectionFactory=new ActiveMQConnectionFactory("tcp://localhost:61616");
        //创建连接
        Connection connection=activeMQConnectionFactory.createConnection();
        //连接
        connection.start();
        //创建会话
        Session session=connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        //创建队列
        Queue queue=session.createQueue("queue_test");
        //创建消息消费者
        MessageConsumer messageConsumer=session.createConsumer(queue);
        // 消息消费，使用监听器
        messageConsumer.setMessageListener((message)->{
            if(message instanceof TextMessage){
                String text = null;
                try {
                    text = ((TextMessage) message).getText();
                } catch (JMSException e) {
                    e.printStackTrace();
                }
                System.err.println("收到的消息是：" + text);
            }
        });
        System.in.read();
        messageConsumer.close();
        session.close();
        connection.close();
    }
}

Test
to start the embedded broker

restart producers

finally start consumers (consumers received the message).