2019-07-08 13:24:35 1289浏览
今天千锋扣丁学堂Java培训老师给大家分享一篇关于java如何连接并访问activemq的详细介绍,下面我们一起来看一下吧。
这里还是先放一张图:
<dependency> <groupId>org.apache.activemq</groupId> <artifactId>activemq-core</artifactId> <version>5.7.0</version> </dependency>
package cn.duanjt; import java.io.IOException; import javax.jms.Connection; import javax.jms.ConnectionFactory; import javax.jms.JMSException; import javax.jms.Message; import javax.jms.MessageConsumer; import javax.jms.MessageListener; import javax.jms.Queue; import javax.jms.Session; import javax.jms.TextMessage; import org.apache.activemq.ActiveMQConnection; import org.apache.activemq.ActiveMQConnectionFactory; import org.apache.activemq.ActiveMQSession; /** * 消费者 * @author 段江涛 * @date 2018-11-23 */ public class Consumer { // 全部使用缺省值 private static String USERNAME = ActiveMQConnection.DEFAULT_USER; private static String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD; private static String BROKER = ActiveMQConnection.DEFAULT_BROKER_URL; public static void main(String[] args) throws IOException { ConnectionFactory factory; Connection connection = null; Session session; Queue queue; Message message; MessageConsumer consumer; try { factory = new ActiveMQConnectionFactory(USERNAME, PASSWORD, BROKER); connection = factory.createConnection(); connection.start(); session = connection.createSession(false, ActiveMQSession.AUTO_ACKNOWLEDGE); queue = session.createQueue("zd-duanjt"); consumer = session.createConsumer(queue); //注释部分为同步方式 /*while (true) { message = consumer.receive(); TextMessage tmsg = (TextMessage) message; System.out.println("接收到数据:" + tmsg.getText()); }*/ //下面是异步方式,通过注册监听 consumer.setMessageListener(new MessageListener() { @Override public void onMessage(Message message) { TextMessage tmsg = (TextMessage) message; try { System.out.println("接收到数据:" + tmsg.getText()); } catch (JMSException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }); } catch (Exception e) { e.printStackTrace(); } finally{ // 之前在这里把连接关闭了,导致一直无法消费数据,注意,这里千万不要关闭连接 } } }
package cn.duanjt; import javax.jms.Connection; import javax.jms.ConnectionFactory; import javax.jms.JMSException; import javax.jms.Message; import javax.jms.MessageProducer; import javax.jms.Queue; import javax.jms.Session; import org.apache.activemq.ActiveMQConnection; import org.apache.activemq.ActiveMQConnectionFactory; import org.apache.activemq.ActiveMQSession; /** * 生产者产生数据 * @author 段江涛 * @date 2018-11-23 */ public class Productor { // 全部使用缺省值 private static String USERNAME = ActiveMQConnection.DEFAULT_USER; private static String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD; private static String BROKER = ActiveMQConnection.DEFAULT_BROKER_URL; public static void main(String[] args) throws JMSException { ConnectionFactory factory = new ActiveMQConnectionFactory(USERNAME, PASSWORD, BROKER); Connection connection = factory.createConnection(); connection.start(); Session session = connection.createSession(false, ActiveMQSession.AUTO_ACKNOWLEDGE); Queue queue = session.createQueue("zd-duanjt"); MessageProducer productor = session.createProducer(queue); for (int i = 0; i < 3; i++) { String msg = "Hello world:" + i; Message message = session.createTextMessage(msg); productor.send(message); System.out.println("发送数据:" + msg); } connection.close(); } }
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