生產者代碼:java
package com.java1234.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; /** * 消息生產者 * @author Administrator * */ public class JMSProducer { private static final String USERNAME=ActiveMQConnection.DEFAULT_USER; // 默認的鏈接用戶名 private static final String PASSWORD=ActiveMQConnection.DEFAULT_PASSWORD; // 默認的鏈接密碼 private static final String BROKEURL=ActiveMQConnection.DEFAULT_BROKER_URL; // 默認的鏈接地址 private static final int SENDNUM=10; // 發送的消息數量 public static void main(String[] args) { ConnectionFactory connectionFactory; // 鏈接工廠 Connection connection = null; // 鏈接 Session session; // 會話 接受或者發送消息的線程 Destination destination; // 消息的目的地 MessageProducer messageProducer; // 消息生產者 // 實例化鏈接工廠 connectionFactory=new ActiveMQConnectionFactory(JMSProducer.USERNAME, JMSProducer.PASSWORD, JMSProducer.BROKEURL); try { connection=connectionFactory.createConnection(); // 經過鏈接工廠獲取鏈接 connection.start(); // 啓動鏈接 session=connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE); // 建立Session destination=session.createQueue("FirstQueue1"); // 建立消息隊列 messageProducer=session.createProducer(destination); // 建立消息生產者 sendMessage(session, messageProducer); // 發送消息 session.commit(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } finally{ if(connection!=null){ try { connection.close(); } catch (JMSException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } /** * 發送消息 * @param session * @param messageProducer * @throws Exception */ public static void sendMessage(Session session,MessageProducer messageProducer)throws Exception{ for(int i=0;i<JMSProducer.SENDNUM;i++){ TextMessage message=session.createTextMessage("ActiveMQ 發送的消息"+i); System.out.println("發送消息:"+"ActiveMQ 發送的消息"+i); messageProducer.send(message); } } }
消費者分兩種:apache
1.主動接受消息receive()session
package com.java1234.activemq; import javax.jms.Connection; import javax.jms.ConnectionFactory; import javax.jms.Destination; import javax.jms.JMSException; import javax.jms.MessageConsumer; import javax.jms.Session; import javax.jms.TextMessage; import org.apache.activemq.ActiveMQConnection; import org.apache.activemq.ActiveMQConnectionFactory; /** * 消息消費者 * @author Administrator * */ public class JMSConsumer { private static final String USERNAME=ActiveMQConnection.DEFAULT_USER; // 默認的鏈接用戶名 private static final String PASSWORD=ActiveMQConnection.DEFAULT_PASSWORD; // 默認的鏈接密碼 private static final String BROKEURL=ActiveMQConnection.DEFAULT_BROKER_URL; // 默認的鏈接地址 public static void main(String[] args) { ConnectionFactory connectionFactory; // 鏈接工廠 Connection connection = null; // 鏈接 Session session; // 會話 接受或者發送消息的線程 Destination destination; // 消息的目的地 MessageConsumer messageConsumer; // 消息的消費者 // 實例化鏈接工廠 connectionFactory=new ActiveMQConnectionFactory(JMSConsumer.USERNAME, JMSConsumer.PASSWORD, JMSConsumer.BROKEURL); try { connection=connectionFactory.createConnection(); // 經過鏈接工廠獲取鏈接 connection.start(); // 啓動鏈接 session=connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE); // 建立Session destination=session.createQueue("FirstQueue1"); // 建立鏈接的消息隊列 messageConsumer=session.createConsumer(destination); // 建立消息消費者 while(true){ TextMessage textMessage=(TextMessage)messageConsumer.receive(100000); if(textMessage!=null){ System.out.println("收到的消息:"+textMessage.getText()); }else{ break; } } } catch (JMSException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }
2.使用listener被動監聽消息(非阻塞的)(觀察者模式)異步
Listener代碼ide
package com.java1234.activemq; import javax.jms.JMSException; import javax.jms.Message; import javax.jms.MessageListener; import javax.jms.TextMessage; /** * 消息監聽 * @author Administrator * */ public class Listener implements MessageListener{ @Override public void onMessage(Message message) { // TODO Auto-generated method stub try { System.out.println("收到的消息:"+((TextMessage)message).getText()); } catch (JMSException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }
package com.java1234.activemq; import javax.jms.Connection; import javax.jms.ConnectionFactory; import javax.jms.Destination; import javax.jms.JMSException; import javax.jms.MessageConsumer; import javax.jms.Session; import javax.jms.TextMessage; import org.apache.activemq.ActiveMQConnection; import org.apache.activemq.ActiveMQConnectionFactory; /** * 消息消費者 * @author Administrator * */ public class JMSConsumer2 { private static final String USERNAME=ActiveMQConnection.DEFAULT_USER; // 默認的鏈接用戶名 private static final String PASSWORD=ActiveMQConnection.DEFAULT_PASSWORD; // 默認的鏈接密碼 private static final String BROKEURL=ActiveMQConnection.DEFAULT_BROKER_URL; // 默認的鏈接地址 public static void main(String[] args) { ConnectionFactory connectionFactory; // 鏈接工廠 Connection connection = null; // 鏈接 Session session; // 會話 接受或者發送消息的線程 Destination destination; // 消息的目的地 MessageConsumer messageConsumer; // 消息的消費者 // 實例化鏈接工廠 connectionFactory=new ActiveMQConnectionFactory(JMSConsumer2.USERNAME, JMSConsumer2.PASSWORD, JMSConsumer2.BROKEURL); try { connection=connectionFactory.createConnection(); // 經過鏈接工廠獲取鏈接 connection.start(); // 啓動鏈接 session=connection.createSession(Boolean.FALSE, Session.AUTO_ACKNOWLEDGE); // 建立Session destination=session.createQueue("FirstQueue1"); // 建立鏈接的消息隊列 messageConsumer=session.createConsumer(destination); // 建立消息消費者 messageConsumer.setMessageListener(new Listener()); // 註冊消息監聽 } catch (JMSException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }
若是想主動的去接受消息,而不用異步消息監聽的話,把consumer.setMessageListener(this)改成Message message = consumer.receive(),手動去調用MessageConsumer的receive方法便可。this
參考文章:spa