消息中间件ActiveMq（代码实现）

一对一：

首先配置pom:

<dependencies>
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-client</artifactId>
            <version>5.13.4</version>
        </dependency>
    </dependencies>

发送方：

import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

public class SentProuducter {
    public static void main(String[] args)throws Exception {
        //1 创建连接工厂
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.200.128:61616");
        //2 获得链接
        Connection connection = connectionFactory.createConnection();
        //3 启动连接
        connection.start();
        //4 获取session  参数：是否启动事物   消息确认模式
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        //5 创建队列对象
        Queue queue = session.createQueue("test-sent");
        //6 创建消息的生产者
        MessageProducer producer = session.createProducer(queue);
        //7 创建消息
        TextMessage textMessage = session.createTextMessage("发送东风41到小日本");
        //8 发送消息
        producer.send(textMessage);
        //9 关闭资源
        producer.close();
        session.close();
        connection.close();
    }
}

接收方：

public class ActiveConsumer {
    public static void main(String[] args)throws Exception {
        //1  创建连接工厂
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.200.128:61616");
        //2  获得链接
        Connection connection = connectionFactory.createConnection();
        //3  启动连接
        connection.start();
        //4  获取session  参数：是否启动事物   消息确认模式
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        //5  创建队列对象
        Queue queue = session.createQueue("test-sent");
        //6  创建消息的接收者
        MessageConsumer consumer = session.createConsumer(queue);
        //7  监听消息
        consumer.setMessageListener(new MessageListener() {
            public void onMessage(Message message) {
                TextMessage message1 = (TextMessage) message;
                try {
                    System.out.println(message1.getText());
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        });

        //8  等待键盘输入
        System.in.read();
        //9  关闭资源
        consumer.close();
        session.close();
        connection.close();
    }
}

一对多:

发送方：

public class ProductsSent {
    public static void main(String[] args)throws Exception {
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.200.128:61616");
        Connection connection = connectionFactory.createConnection();
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Topic topic = session.createTopic("test-one2two");
        MessageProducer producer = session.createProducer(topic);
        TextMessage textMessage = session.createTextMessage("祖国万岁，人民万岁");
        producer.send(textMessage);
        producer.close();
        session.close();
        connection.close();

    }

}

接收方（可以是多个接收方 发送方唯一）：

public class TopicConsumer {
    public static void main(String[] args)throws Exception {
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://192.168.200.128:61616");
        Connection connection = connectionFactory.createConnection();
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        Topic topic = session.createTopic("test-one2two");
        //接收消息
        MessageConsumer consumer = session.createConsumer(topic);
        consumer.setMessageListener(new MessageListener() {
            public void onMessage(Message message) {
                TextMessage textMessage = (TextMessage) message;
                try {
                    System.out.println("我收到了"+textMessage.getText());
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        });
        System.in.read();
        consumer.close();
        session.close();
        connection.close();
    }
}

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