activemq消息队列-点对点通讯

 

  点对点通讯：消息发送-Queue-消息接收，消息发送到队列，消息接收者阻塞式接收消息。

                       如果没有消息，接收消息方法receive()阻塞。

 

  package mq.p2p;

import java.util.concurrent.atomic.AtomicInteger;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;

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

public class Producter {

    //ActiveMq 的默认用户名
    private static final String USERNAME = ActiveMQConnection.DEFAULT_USER;
    //ActiveMq 的默认登录密码
    private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD;
    //ActiveMQ 的链接地址
    //private static final String BROKEN_URL = ActiveMQConnection.DEFAULT_BROKER_URL;
    private static final String BROKEN_URL = "failover://tcp://192.168.191.128:61616";
   
    AtomicInteger count = new AtomicInteger(0);
    //链接工厂
    ConnectionFactory connectionFactory;
    //链接对象
    Connection connection;
    //事务管理
    Session session;
    ThreadLocal<MessageProducer> threadLocal = new ThreadLocal<>();

    public void init(){
        try {
            //创建一个链接工厂
            connectionFactory = new ActiveMQConnectionFactory(USERNAME,PASSWORD,BROKEN_URL);
            //从工厂中创建一个链接
            connection  = connectionFactory.createConnection();
            //开启链接
            connection.start();
            //创建一个事务（这里通过参数可以设置事务的级别）
            session = connection.createSession(true,Session.SESSION_TRANSACTED);
        } catch (JMSException e) {
            e.printStackTrace();
        }
    }

    public void sendMessage(String disname){
        try {
            //创建一个消息队列
            Queue queue = session.createQueue(disname);
            //消息生产者
            MessageProducer messageProducer = null;
            if(threadLocal.get()!=null){
                messageProducer = threadLocal.get();
            }else{
                messageProducer = session.createProducer(queue);
                threadLocal.set(messageProducer);
            }
           while(true){
                Thread.sleep(1000);
                int num = count.getAndIncrement();
                //创建一条消息
                TextMessage msg = session.createTextMessage(Thread.currentThread().getName()+
                        "productor:我是大帅哥，我现在正在生产东西！,count:"+num);
                System.out.println(Thread.currentThread().getName()+
                        "productor:我是大帅哥，我现在正在生产东西！,count:"+num);
                //发送消息
                messageProducer.send(msg);
                //提交事务
                session.commit();
            }
        } catch (JMSException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

 

package mq.p2p;

import java.util.concurrent.atomic.AtomicInteger;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;

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

public class Consumer {

    private static final String USERNAME = ActiveMQConnection.DEFAULT_USER;

    private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD;

    //private static final String BROKEN_URL = ActiveMQConnection.DEFAULT_BROKER_URL;
    private static final String BROKEN_URL = "failover://tcp://192.168.191.128:61616";
   
    ConnectionFactory connectionFactory;

    Connection connection;

    Session session;

    ThreadLocal<MessageConsumer> threadLocal = new ThreadLocal<>();
    AtomicInteger count = new AtomicInteger();

    public void init(){
        try {
            connectionFactory = new ActiveMQConnectionFactory(USERNAME,PASSWORD,BROKEN_URL);
            connection  = connectionFactory.createConnection();
            connection.start();
            session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE);
        } catch (JMSException e) {
            e.printStackTrace();
        }
    }

    public void getMessage(String disname){
        try {
            Queue queue = session.createQueue(disname);
            MessageConsumer consumer = null;

            if(threadLocal.get()!=null){
                consumer = threadLocal.get();
            }else{
                consumer = session.createConsumer(queue);
                threadLocal.set(consumer);
            }
            while(true){
                Thread.sleep(1000);
                System.out.println("..");
                TextMessage msg = (TextMessage) consumer.receive();
                System.out.println("....");
                if(msg!=null) {
                    msg.acknowledge();
                    System.out.println(Thread.currentThread().getName()+": Consumer:我是消费者，我正在消费Msg"+msg.getText()+"--->"+count.getAndIncrement());
                }else {
                    break;
                }
            }
        } catch (JMSException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

 

package mq.p2p;

public class ProducterTest {
    public static void main(String[] args){
        Producter producter = new Producter();
        producter.init();
        ProducterTest testMq = new ProducterTest();
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        //Thread 1
        new Thread(testMq.new ProductorMq(producter)).start();
        //Thread 2
        new Thread(testMq.new ProductorMq(producter)).start();
        //Thread 3
        new Thread(testMq.new ProductorMq(producter)).start();
        //Thread 4
        new Thread(testMq.new ProductorMq(producter)).start();
        //Thread 5
        new Thread(testMq.new ProductorMq(producter)).start();
    }

    private class ProductorMq implements Runnable{
        Producter producter;
        public ProductorMq(Producter producter){
            this.producter = producter;
        }

        @Override
        public void run() {
            while(true){
                try {
                    producter.sendMessage("Jaycekon-MQ");
                    Thread.sleep(10000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

package mq.p2p;

public class ConsumerTest {
    public static void main(String[] args){
        Consumer comsumer = new Consumer();
        comsumer.init();
        ConsumerTest testConsumer = new ConsumerTest();
        new Thread(testConsumer.new ConsumerMq(comsumer)).start();
        new Thread(testConsumer.new ConsumerMq(comsumer)).start();
        new Thread(testConsumer.new ConsumerMq(comsumer)).start();
        new Thread(testConsumer.new ConsumerMq(comsumer)).start();
    }

    private class ConsumerMq implements Runnable{
        Consumer comsumer;
        public ConsumerMq(Consumer comsumer){
            this.comsumer = comsumer;
        }

        @Override
        public void run() {
            while(true){
                try {
                    comsumer.getMessage("Jaycekon-MQ");
                    Thread.sleep(10000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}