activemq订阅发布模式(非持久订阅)

生产者JMSProducer:

package com.sun.test.aircraft.activemq.topic;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

/**
* @Author:sun
* @version:
* @Description:
* @Date:Created in 16:43 2017/11/10
*/
public class JMSProducer {
private static final int SEND_NUMBER = 5;

public static void main(String[] args) {

ConnectionFactory connectionFactory; // ConnectionFactory--连接工厂,JMS用它创建连接
// Provider 的连接
Connection connection = null; // Connection :JMS 客户端到JMS
Session session; // Session: 一个发送或接收消息的线程
Destination destination; // Destination :消息的目的地;消息发送给谁.
MessageProducer producer; // MessageProducer:消息发送者
// 构造ConnectionFactory实例对象,此处采用ActiveMq的实现jar ActiveMQConnection.DEFAULT_USER,ActiveMQConnection.DEFAULT_PASSWORD, "tcp://localhost:61616"
connectionFactory = new ActiveMQConnectionFactory(ActiveMQConnection.DEFAULT_USER,ActiveMQConnection.DEFAULT_PASSWORD, "tcp://192.168.30.124:61616");
try { // 构造从工厂得到连接对象
connection = connectionFactory.createConnection();
// 启动
connection.start();
// 获取操作连接
session = connection.createSession(Boolean.TRUE, Session.AUTO_ACKNOWLEDGE);
// 获取session注意参数值xingbo.xu-queue是一个服务器的queue,须在在ActiveMq的console配置
destination = session.createTopic("SunnyTopics");
// 得到消息生成者【发送者】
producer = session.createProducer(destination);
// 设置不持久化,此处学习,实际根据项目决定
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
// 构造消息,此处写死,项目就是参数,或者方法获取
sendMessage(session, producer);
session.commit();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != connection)
connection.close();
} catch (Throwable ignore) {
}
}
}

public static void sendMessage(Session session, MessageProducer producer) throws Exception {
for (int i = 1; i <= SEND_NUMBER; i++) {
TextMessage message = session.createTextMessage("ActiveMq 发送的消息" + i);
// 发送消息到目的地方

System.out.println("发送消息:" + "ActiveMq 发送的消息" + i);
producer.send(message);
}
}
}
消费者JMSConsumer:
package com.sun.test.aircraft.activemq.topic;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;

/**
* @Author:sun
* @version:
* @Description:
* @Date:Created in 16:46 2017/11/10
*/
public class JMSConsumer {
public static void main(String[] args) {
// ConnectionFactory :连接工厂,JMS 用它创建连接
ConnectionFactory connectionFactory;
// Connection :JMS 客户端到JMS Provider 的连接
Connection connection = null;
// Session: 一个发送或接收消息的线程
Session session;
// Destination :消息的目的地;消息发送给谁.
Destination destination;
// 消费者,消息接收者
MessageConsumer consumer;
connectionFactory = new ActiveMQConnectionFactory(
ActiveMQConnection.DEFAULT_USER,
ActiveMQConnection.DEFAULT_PASSWORD, "tcp://192.168.30.124:61616");
try {
// 构造从工厂得到连接对象
connection = connectionFactory.createConnection();
// 启动
connection.start();
// 获取操作连接
session = connection.createSession(Boolean.FALSE,
Session.AUTO_ACKNOWLEDGE);
// 获取session注意参数值xingbo.xu-queue是一个服务器的queue,须在在ActiveMq的console配置
//destination = session.createQueue("SunnyTopics");
destination=session.createTopic("SunnyTopics");
consumer = session.createConsumer(destination);
while (true) {
// 设置接收者接收消息的时间,为了便于测试,这里谁定为100s
TextMessage message = (TextMessage) consumer.receive(500000);
if (null != message) {
System.out.println("收到消息" + message.getText());
} else {
break;
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != connection)
connection.close();
} catch (Throwable ignore) {
}
}
}
}

先启动消费者(订阅),再启动生产者(发布)



原文地址:https://www.cnblogs.com/austinspark-jessylu/p/7825301.html