ActiviMQ快速入门
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启动mq
创建项目
写提供者
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package com.cxl.activemq;
import javax.jms.Connection; import javax.jms.ConnectionFactory; import javax.jms.Destination; import javax.jms.JMSException; import javax.jms.MessageProducer; import javax.jms.Session; import javax.jms.TextMessage;
import org.apache.activemq.ActiveMQConnection; import org.apache.activemq.ActiveMQConnectionFactory;
/** * 消息发布者 * @author Administrator * */ public class JMSProducer {
private static final String USERNAME = ActiveMQConnection.DEFAULT_USER; //默认的连接用户名 private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD; //默认的连接密码 private static final String BROKEURL = ActiveMQConnection.DEFAULT_BROKER_URL;//默认连接地址 private static final int SENDNUM = 10;//发送消息数量
@SuppressWarnings("null") public static void main(String[] args) throws Exception{
ConnectionFactory connectionFactory;//连接工程 Connection connection; // 连接 Session session;// 会话 Destination destination;//消息的目的地 MessageProducer messageProducer; // 消息生产者
//实例连接工厂 connectionFactory = new ActiveMQConnectionFactory(JMSProducer.USERNAME,JMSProducer.PASSWORD,JMSProducer.BROKEURL);
connection = connectionFactory.createConnection(); //通过连接工厂获取连接 connection.start(); //启动连接 session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE); //创建session //destination = session.createQueue("FirstQueue1"); // 创建消息队列 destination = session.createTopic("FirstTopic1"); messageProducer = session.createProducer(destination); // 创建消息生产者 sendMessage(session, messageProducer); //发送消息 session.commit();
if (connection != null) { connection.close(); } }
public static void sendMessage(Session session,MessageProducer producer) throws JMSException { for(int i = 0;i<JMSProducer.SENDNUM;i++) { TextMessage message = session.createTextMessage("发送消息>>> " + i); System.err.println("发步消息： " + "ActiveMQ 发送的消息 " + i); producer.send(message); } }
}
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写消费者
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package com.cxl.activemq;
import javax.jms.Connection; import javax.jms.ConnectionFactory; import javax.jms.Destination; import javax.jms.JMSException; import javax.jms.MessageConsumer; import javax.jms.MessageProducer; import javax.jms.Session; import javax.jms.TextMessage;
import org.apache.activemq.ActiveMQConnection; import org.apache.activemq.ActiveMQConnectionFactory;
/** * 消息订阅者2 * @author Administrator * */ public class JMSConsumer2 {
private static final String USERNAME = ActiveMQConnection.DEFAULT_USER; //默认的连接用户名 private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD; //默认的连接密码 private static final String BROKEURL = ActiveMQConnection.DEFAULT_BROKER_URL;//默认连接地址
public static void main(String[] args) throws JMSException {
ConnectionFactory connectionFactory;//连接工程 Connection connection; // 连接 Session session;// 会话 Destination destination;//消息的目的地 MessageConsumer messageConsumer;
//实例连接工厂 connectionFactory = new ActiveMQConnectionFactory(JMSConsumer2.USERNAME,JMSConsumer2.PASSWORD,JMSConsumer2.BROKEURL);
connection = connectionFactory.createConnection(); //通过连接工厂获取连接 connection.start(); //启动连接 session = connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE); //创建session //destination = session.createQueue("FirstQueue1");//创建连接的消息队列 destination = session.createTopic("FirstTopic1"); messageConsumer = session.createConsumer(destination);
//注册消息监听 messageConsumer.setMessageListener(new Listener2());
}
}
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写监听器
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package com.cxl.activemq;
import javax.jms.JMSException; import javax.jms.Message; import javax.jms.MessageListener; import javax.jms.TextMessage;
/** * 消息监听-订阅者2 * @author Administrator * */ public class Listener2 implements MessageListener{
@Override public void onMessage(Message message) {
try { System.out.println("订阅者2收到的消息 ： " + ((TextMessage)message).getText());
} catch (JMSException e) { // TODO Auto-generated catch block e.printStackTrace(); }
}
}
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