ActiveMQ queue 代码示例

Posted 2020-08-20 MIC2016

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生产者：

package com.111.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;

public class JMSProducer {
    //默认连接用户名
    private static final String USERNAME = ActiveMQConnection.DEFAULT_USER;
    //默认连接密码
    private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD;
    //默认连接地址
    private static final String BROKEURL = ActiveMQConnection.DEFAULT_BROKER_URL;
    //发送的消息数量
    private static final int SENDNUM = 10;

    public static void main(String[] args) {
        //连接工厂
        ConnectionFactory connectionFactory;
        //连接
        Connection connection = null;
        //会话 接受或者发送消息的线程
        Session session = null;
        //消息的目的地
        Destination destination;
        //消息生产者
        MessageProducer messageProducer;
        //消息队列名称
        String queueName = "helloWord"; 
        
        //实例化连接工厂
        connectionFactory = new ActiveMQConnectionFactory(USERNAME, PASSWORD, BROKEURL);

        try {
            //通过连接工厂获取连接
            connection = connectionFactory.createConnection();
            //启动连接
            connection.start();
            //创建session
            session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
            //创建一个连接自定义队列名称的消息队列
            destination = session.createQueue(queueName);
            //创建消息生产者
            messageProducer = session.createProducer(destination);
            //发送消息
            sendMessage(session, messageProducer);

            session.commit();

        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            if(connection != null){
                try {
                    session.close();
                    connection.close();
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        }

    }
    /**
     * 发送消息
     * @param session
     * @param messageProducer  消息生产者
     * @throws Exception
     */
    public static void sendMessage(Session session,MessageProducer messageProducer) throws Exception{
        for (int i = 0; i < SENDNUM; i++) {
            //创建一条文本消息 
            TextMessage message = session.createTextMessage("ActiveMQ 发送消息" +i);
            System.out.println("发送消息：Activemq 发送消息" + i);
            
            //通过消息生产者发出消息 
            messageProducer.send(message);
        }

    }
}

消费者：

package com.111.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;

public class JMSConsumer {
    //默认连接用户名
    private static final String USERNAME = ActiveMQConnection.DEFAULT_USER;
    //默认连接密码
    private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD;
  //默认连接地址
    private static final String BROKEURL = ActiveMQConnection.DEFAULT_BROKER_URL;

    public static void main(String[] args) {
        //连接工厂
        ConnectionFactory connectionFactory;
        //连接
        Connection connection = null;
        //会话 接受或者发送消息的线程
        Session session;
        //消息的目的地
        Destination destination;
        //消息的消费者
        MessageConsumer messageConsumer;
        //消息队列名称
        String queueName = "helloWord";
        //实例化连接工厂
        connectionFactory = new ActiveMQConnectionFactory(USERNAME, PASSWORD, BROKEURL);

        try {
            //通过连接工厂获取连接
            connection = connectionFactory.createConnection();
            //启动连接
            connection.start();
            //创建session
            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            //创建一个连接自定义队列名称的消息队列
            destination = session.createQueue(queueName);
            //创建消息消费者
            messageConsumer = session.createConsumer(destination);

            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) {
            e.printStackTrace();
        }

    }
}

多线程生产者：

package com.111.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;

public class JMSProducerMultithreading implements Runnable{
    //默认连接用户名
    private static final String USERNAME = ActiveMQConnection.DEFAULT_USER;
    //默认连接密码
    private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD;
    //默认连接地址
    private static final String BROKEURL = ActiveMQConnection.DEFAULT_BROKER_URL;
    //发送的消息数量
    private static final int SENDNUM = 3;

    /**
     * 发送消息
     * @param session
     * @param messageProducer  消息生产者
     * @throws Exception
     */
    public static void sendMessage(Session session,MessageProducer messageProducer) throws Exception{
        for (int i = 0; i < SENDNUM; i++) {
            //获取当前线程id
            String threadId = Thread.currentThread().getId()+"";
            //创建一条文本消息 
            TextMessage message = session.createTextMessage("ActiveMQ 发送消息" +i+"生产者线程编号="+threadId);
            //控制台打印
            System.out.println("ActiveMQ 发送消息" +i+"生产者线程编号="+threadId);
            //通过消息生产者发出消息 
            messageProducer.send(message);
        }

    }
    @Override
    public void run() {
        //连接工厂
        ConnectionFactory connectionFactory;
        //连接
        Connection connection = null;
        //会话 接受或者发送消息的线程
        Session session = null;
        //消息的目的地
        Destination destination;
        //消息生产者
        MessageProducer messageProducer;
        //消息队列名称
        String queueName = "Multithreading";
        //实例化连接工厂
        connectionFactory = new ActiveMQConnectionFactory(USERNAME, PASSWORD, BROKEURL);

        try {
            //通过连接工厂获取连接
            connection = connectionFactory.createConnection();
            //启动连接
            connection.start();
            //创建session
            session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
            //创建一个名称为HelloWorld的消息队列
            destination = session.createQueue(queueName);
            //创建消息生产者
            messageProducer = session.createProducer(destination);
            //发送消息
            sendMessage(session, messageProducer);

            session.commit();
            
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            if(connection != null){
                try {
                    session.close();
                    connection.close();
                } catch (JMSException e) {
                    e.printStackTrace();
                }
            }
        }
        
    }
}

多线程消费者：

package com.111.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;

public class JMSConsumerMultithreading implements Runnable{
    //默认连接用户名
    private static final String USERNAME = ActiveMQConnection.DEFAULT_USER;
    //默认连接密码
    private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD;
    //默认连接地址
    private static final String BROKEURL = ActiveMQConnection.DEFAULT_BROKER_URL;
    @Override
    public void run() {
        ConnectionFactory connectionFactory;//连接工厂
        Connection connection = null;//连接

        Session session;//会话 接受或者发送消息的线程
        Destination destination;//消息的目的地

        MessageConsumer messageConsumer;//消息的消费者
        
        //消息队列名称
        String queueName = "Multithreading";

        //实例化连接工厂
        connectionFactory = new ActiveMQConnectionFactory(USERNAME, PASSWORD, BROKEURL);

        try {
            //通过连接工厂获取连接
            connection = connectionFactory.createConnection();
            //启动连接
            connection.start();
            //创建session
            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            //创建一个连接HelloWorld的消息队列
            destination = session.createQueue(queueName);
            //创建消息消费者
            messageConsumer = session.createConsumer(destination);
            String threadId = Thread.currentThread().getId()+""; 
            while (true) {
                TextMessage textMessage = (TextMessage) messageConsumer.receive(100000);
                if(textMessage != null){
                    System.out.println("收到的消息:" + textMessage.getText()+" 消费者线程编号="+threadId);
                }else {
                    break;
                }
            }


        } catch (JMSException e) {
            e.printStackTrace();
        }
        
    }
}

多线程生产者测试类：

package com.111.activemq;

public class JMSProducerMultithreadingTest {
    public static void main(String[] args) {
        
        JMSProducerMultithreading jpm = new JMSProducerMultithreading();
        //启动10个生产者线程
        for(int i = 0 ; i < 10 ; i++){
            Thread t = new Thread(jpm);
            t.start();
        }
        
    }
}

多线程消费者测试类：

package com.111.activemq;

public class JMSConsumerMultithreadingTest {
    public static void main(String[] args) {
    
        JMSConsumerMultithreading jcm = new JMSConsumerMultithreading();
        //启动3个消费者者线程
        for(int i = 0 ; i < 3 ; i++){
            Thread t = new Thread(jcm);
            t.start();
        }
        
    }
}

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