介紹 Active MQ是個消息隊列管理器，用于通訊的中間件。現在由我來給大家介紹一下如何使用ActiveMQ測試小程序。

首先需要下載ActiveMQ,并修改內存

修改bin目錄下activemq.bat
在最后一行加入

set ACTIVEMQ_OPTS=-Xms1G -Xmx1G

保存后執行該bat文件
新建maven項目
pom文件中加入依賴

<dependencies>
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-all</artifactId>
            <!--我的mq版本為5.9.0-->
            <version>5.9.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.activemq/activemq-broker -->
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-broker</artifactId>
            <version>5.10.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.activemq/activemq-client -->
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-client</artifactId>
            <version>5.14.0</version>
        </dependency>
    </dependencies>

發送端程序

import org.apache.activemq.ActiveMQConnection;import org.apache.activemq.
ActiveMQConnectionFactory;import javax.jms.*;public class Send {
   // private static final int SEND_NUMBER = 10;
    public static void main(String[] args){        //ConnectionFactory:連接工廠，JMS用它創建連接
        ConnectionFactory connectionFactory;        //Connection:JMS客戶端到JMS Provider的連接
        Connection connection = null;        //Session:一個發送或接收消息的線程
        Session session;        //Destination:消息的目的地；消息的接收者
        Destination destination;        //MessageProducer:消息發送者
        MessageProducer producer;        //TextMessage message;
        //構造ConnectionFactory實例對象，此處采用ActiveMQ的實現jar
        connectionFactory = new ActiveMQConnectionFactory(
                ActiveMQConnection.DEFAULT_USER,
                ActiveMQConnection.DEFAULT_PASSWORD,                "tcp://localhost:61616"
        );        try{            //構造從工廠得到連接對象
            connection = connectionFactory.createConnection();        
                //啟動
            connection.start();         
              //獲取操作連接
            session = connection.createSession(Boolean.TRUE,
                    Session.AUTO_ACKNOWLEDGE);          
               //獲取session注意參數值test是一個服務器的queue,須在ActiveMQ的console配置
            destination = session.createQueue("test");           
             //得到發送者
            producer = session.createProducer(destination);          
              //設置不持久化，實際情況請根據項目決定
            producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);      
                  //構造消息，這里寫死了，項目就是參數，或者方法獲取
            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 <= 100000; i++){
            TextMessage message = session.createTextMessage("今日天氣asda" + i)；//發送消息到目的地
            System.out.println("發送:"+message.getText());
            producer.send(message);
        }
    }
}

接收端程序

import org.apache.activemq.ActiveMQConnection;import org.apache.activemq.
ActiveMQConnectionFactory;import javax.jms.*;public class revice {
    public static void main(String[] args) {
        ConnectionFactory connectionFactory;
        Connection connection = null;
        Session session;
        Destination destination;        //接收者-消費者
        MessageConsumer messageConsumer;
        connectionFactory = new ActiveMQConnectionFactory(
                ActiveMQConnectionFactory.DEFAULT_USER,
                ActiveMQConnectionFactory.DEFAULT_PASSWORD, "tcp://localhost:61616");   
                     try{
            connection = connectionFactory.createConnection();
            connection.start();
            session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE);
            destination = session.createQueue("test");
            messageConsumer = session.createConsumer(destination);            while(true){
                TextMessage message = (TextMessage) messageConsumer.receive(1000);               
                 if(null != message){
                    System.out.println("收到:"+message.getText());
                }else{                    break;
                }

                message.acknowledge();
            }
        }catch(Exception ex){
            ex.printStackTrace();
        }finally{            try{                if(null != connection){
                    connection.close();
                }
            }catch(Throwable ig){

            }
        }
    }
}

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