activemq的搭建、启动,简单demo

一、搭建activeMQ

  在官网下载window版本,直接解压就可以。

二、启动

  在解压完的目录/bin/win64,双击击activemq.bat,运行完之后打开浏览器,输入http://127.0.0.1:8161/admin/,出现以下页面说明成功。

  

三、简单DEMO(使用点对点的模式演示的)

  本DEMO是在maven环境下操作的,没有maven的请先安装maven

  1:在pom.xml添加activeMQ的jar,在dependencies标签中添加如下,因为本人的MQ版本是5.8,所以mvn的MQ也是5.8

      <dependency>
   <groupId>org.apache.activemq</groupId>
   <artifactId>activemq-all</artifactId>
   <version>5.8.0</version>
   </dependency>
  

  2:创建生产者

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

import javax.jms.*;

public class ActiveMQProducer {

    /*设置默认的用户名*/
    private static final String USERNAME =
            ActiveMQConnection.DEFAULT_USER;
    /*设置默认的密码*/
    private static final String PASSWORD =
            ActiveMQConnection.DEFAULT_PASSWORD;
    /*设置默认的连接地址*/
    private static final String BROKEURL =
            ActiveMQConnection.DEFAULT_BROKER_URL;

    public static void main(String[] args) {
        ConnectionFactory connectionFactory;
        Connection connection = null;
        try {
            /*创建连接工厂*/
            connectionFactory =
                    new ActiveMQConnectionFactory(USERNAME, PASSWORD, BROKEURL);
            /*创建连接,并且启动*/
            connection = connectionFactory.createConnection();
            connection.start();
            /*创建一个回话*/
            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            /*消息的目的地*/
            Destination destination = session.createQueue("hello-world");
            /*消息的生产者*/
            MessageProducer messageProducer = session.createProducer(destination);
            /*发送消息*/
            for (int i = 1; i < 4; i++) {
                String msg = "发送第"+i+"条消息";
                System.out.println(msg);
                TextMessage textMessage = session.createTextMessage(msg);
                messageProducer.send(textMessage);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (connection != null) {
                try {
                    connection.close();
                } catch (Exception e) {
                    e.printStackTrace();

                }
            }
        }
    }
}

  3:创建消费者

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

import javax.jms.*;

public class ActiveMQConsumer {

    /*设置默认的用户名*/
    private static final String USERNAME =
            ActiveMQConnection.DEFAULT_USER;
    /*设置默认的密码*/
    private static final String PASSWORD =
            ActiveMQConnection.DEFAULT_PASSWORD;
    /*设置默认的连接地址*/
    private static final String BROKEURL =
            ActiveMQConnection.DEFAULT_BROKER_URL;

    public static void main(String[] args) {
        ConnectionFactory connectionFactory;
        Connection connection = null;
        try {
            /*创建连接工厂*/
            connectionFactory =
                    new ActiveMQConnectionFactory(USERNAME, PASSWORD, BROKEURL);
            /*创建连接,并且启动*/
            connection = connectionFactory.createConnection();
            connection.start();
            /*创建一个回话*/
            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            /*消息的目的地*/
            Destination destination = session.createQueue("hello-world");
            /*消息的消费者*/
            MessageConsumer messageConsumer = session.createConsumer(destination);
            /*获取消息*/
            Message message;
            while ((message = messageConsumer.receive())!=null){
                System.out.println(((TextMessage)message).getText());
            };
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (connection != null) {
                try {
                    connection.close();
                } catch (Exception e) {
                    e.printStackTrace();

                }
            }
        }
    }

}  

  直接运行main方法,先启动消费或生产者都可以。

注:

 区别:

  queue:是点对点的模式,一个生产者对应一个消费者,消息不会被重复的消费

  topic:主题或者发布订阅模式,一个生产者对应多个消费者,消息会被重复的消费。

  代码:生产者和消费者都需要修改

  Destination destination = session.createQueue("hello-world");//点对点模式

  Destination destination = session.createTopic("hello-world");//主题模式

 
原文地址:https://www.cnblogs.com/orange-time/p/10608766.html