ActiveMQ官网java
ActiveMQ 是Apache出品,最流行的,能力强劲的开源消息总线。ActiveMQ 是一个彻底支持JMS1.1和J2EE 1.4规范的 JMS Provider实现,尽管JMS规范出台已是好久的事情了,可是JMS在当今的J2EE应用中间仍然扮演着特殊的地位。apache
ConnectionFactory:用于建立链接到消息中间件的链接工厂。
Connection:表明了应用程序和服务之间的链接通路。
Destination:指消息发布的地点,包括队列模式和主题模式。
Session:表示一个单线程的上下文,用于发送和接受消息。
MessageConsumer:由会话建立,用于接受发送到目的的消息。
MessageProducer:由会话建立,用于发送消息。
Message:是在消费者和生产者之间传递的对象,消息头,一组消息属性,和一个消息体。session
<dependency> <groupId>org.apache.activemq</groupId> <artifactId>activemq-all</artifactId> <version>5.9.0</version> </dependency>
发送队列模型消息tcp
import org.apache.activemq.ActiveMQConnectionFactory; import javax.jms.*; public class MessageProducer { //定义ActivMQ的链接地址 private static final String ACTIVEMQ_URL = "tcp://127.0.0.1:61616"; //定义发送消息的队列名称 private static final String QUEUE_NAME = "MyMessage"; public static void main(String[] args) throws JMSException { //建立链接工厂 ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory(ACTIVEMQ_URL); //建立链接 Connection connection = activeMQConnectionFactory.createConnection(); //打开链接 connection.start(); //建立会话 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); //建立队列目标 Destination destination = session.createQueue(QUEUE_NAME); //建立一个生产者 javax.jms.MessageProducer producer = session.createProducer(destination); //建立模拟100个消息 for (int i = 1 ; i <= 100 ; i++){ TextMessage message = session.createTextMessage("我发送message:" + i); //发送消息 producer.send(message); //在本地打印消息 System.out.println("我如今发的消息是:" + message.getText()); } //关闭链接 connection.close(); } }
接收队列模型消息ide
import org.apache.activemq.ActiveMQConnectionFactory; import javax.jms.*; public class MessageConsumer { //定义ActivMQ的链接地址 private static final String ACTIVEMQ_URL = "tcp://127.0.0.1:61616"; //定义发送消息的队列名称 private static final String QUEUE_NAME = "MyMessage"; public static void main(String[] args) throws JMSException { //建立链接工厂 ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory(ACTIVEMQ_URL); //建立链接 Connection connection = activeMQConnectionFactory.createConnection(); //打开链接 connection.start(); //建立会话 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); //建立队列目标 Destination destination = session.createQueue(QUEUE_NAME); //建立消费者 javax.jms.MessageConsumer consumer = session.createConsumer(destination); //建立消费的监听 consumer.setMessageListener(new MessageListener() { @Override public void onMessage(Message message) { TextMessage textMessage = (TextMessage) message; try { System.out.println("获取消息:" + textMessage.getText()); } catch (JMSException e) { e.printStackTrace(); } } }); } }
注:队列模型的消息,只会被一个消费者所消费,而不会被共享。线程
发送主题模型消息code
import org.apache.activemq.ActiveMQConnectionFactory; import javax.jms.*; public class MessageTopicProducer { //定义ActivMQ的链接地址 private static final String ACTIVEMQ_URL = "tcp://127.0.0.1:61616"; //定义发送消息的主题名称 private static final String TOPIC_NAME = "MyTopicMessage"; public static void main(String[] args) throws JMSException { //建立链接工厂 ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory(ACTIVEMQ_URL); //建立链接 Connection connection = activeMQConnectionFactory.createConnection(); //打开链接 connection.start(); //建立会话 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); //建立队列目标 Destination destination = session.createTopic(TOPIC_NAME); //建立一个生产者 javax.jms.MessageProducer producer = session.createProducer(destination); //建立模拟100个消息 for (int i = 1; i <= 100; i++) { TextMessage message = session.createTextMessage("当前message是(主题模型):" + i); //发送消息 producer.send(message); //在本地打印消息 System.out.println("我如今发的消息是:" + message.getText()); } //关闭链接 connection.close(); } }
接收主题模型消息component
import org.apache.activemq.ActiveMQConnectionFactory; import javax.jms.*; public class MessageTopicConsumer { //定义ActivMQ的链接地址 private static final String ACTIVEMQ_URL = "tcp://127.0.0.1:61616"; //定义发送消息的队列名称 private static final String TOPIC_NAME = "MyTopicMessage"; public static void main(String[] args) throws JMSException { //建立链接工厂 ActiveMQConnectionFactory activeMQConnectionFactory = new ActiveMQConnectionFactory(ACTIVEMQ_URL); //建立链接 Connection connection = activeMQConnectionFactory.createConnection(); //打开链接 connection.start(); //建立会话 Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); //建立队列目标 Destination destination = session.createTopic(TOPIC_NAME); //建立消费者 javax.jms.MessageConsumer consumer = session.createConsumer(destination); //建立消费的监听 consumer.setMessageListener(new MessageListener() { @Override public void onMessage(Message message) { TextMessage textMessage = (TextMessage) message; try { System.out.println("获取消息:" + textMessage.getText()); } catch (JMSException e) { e.printStackTrace(); } } }); } }
注:消费者要先订阅主题,这样生产者发送的主题模型消息才能被消费者消费。xml