Java访问ActiveMQ

ActiveMQ
发布订阅模式

1.创建gradle项目

2.增加依赖

3.创建类

package com.study.config;

import org.apache.activemq.ActiveMQConnection;

/**
 * @author jiayq
 */

public enum ActiveMQConfig {
    /**
     * username
     */
    USERNAME(ActiveMQConnection.DEFAULT_USER),
    /**
     * password
     */
    PASSWORD(ActiveMQConnection.DEFAULT_PASSWORD),
    /**
     * url
     */
    URL(ActiveMQConnection.DEFAULT_BROKER_URL);

    /**
     * value
     */
    private String value;

    private ActiveMQConfig(String value) {
        this.value = value;
    }

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        this.value = value;
    }
}

package com.study.consume;

import com.study.config.ActiveMQConfig;
import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

/**
 * @author jiayq
 */
public class Consume {

    public static void main(String[] args) throws JMSException {
        //创建连接工厂
        ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory(ActiveMQConfig.USERNAME.getValue(),
                ActiveMQConfig.PASSWORD.getValue(), ActiveMQConfig.URL.getValue());
        //创建连接
        Connection connection = activeMQConnectionFactory.createConnection();
        //开启连接
        connection.start();
        //创建会话，不需要事务
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        //创建主题
        Topic topic = session.createTopic("active-test");
        //创建消息消费者
        MessageConsumer consumer = session.createConsumer(topic);
        //注册监听
        consumer.setMessageListener(message -> {
            try {
                System.out.println(((TextMessage)message).getText());
                Thread.sleep(4 * 1000);
            } catch (JMSException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        });
    }

}

package com.study.publish;


import com.study.config.ActiveMQConfig;
import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;
import java.util.Random;

/**
 * @author jiayq
 */
public class Publish {

    public static void main(String[] args) {
        //创建连接工厂
        ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory(ActiveMQConfig.USERNAME.getValue(),
                ActiveMQConfig.PASSWORD.getValue(),ActiveMQConfig.URL.getValue());
        try{
            //创建连接
            Connection connection = activeMQConnectionFactory.createConnection();
            //开启连接
            connection.start();
            //创建会话
            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            //创建主题，用于订阅消息
            Topic topic = session.createTopic("active-test");
            //消息生产者
            MessageProducer producer = session.createProducer(topic);
            while (true) {
                //创建消息
                TextMessage message = session.createTextMessage(new String(new Random().nextDouble() + ""));
                System.out.println(message.getText());
                //发送
                producer.send(message);
                //模拟生产消息的耗时
                Thread.sleep(3 * 1000);
            }
        } catch (JMSException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }


}

4.启动服务器

5.生产

在图形化界面查看

6.消费

7.git仓库地址

https://github.com/a18792721831/MQ.git