ActiveMQ application (1)-Installation and basic mode instance, activemq instance

ActiveMQ application (1)-Installation and basic mode instance, activemq instance

0.

Https://activemq.apache.org/download.html

 

1. decompress and start the activemq Service (you need to select different startup files based on different systems)

// Apache-activemq-5.13.1/bin/macosx/activemq start

 

2. log on to the activemq server to view the information.

Address: http: // localhost: 8161/

Click [Manage ActiveMQ broker] to log on to view detailed data. The default username and password are admin and admin.

 

 

3. Create an eclipse project

/Apache-activemq-5.13.1/lib

 

3.1 Common jms example

public class Sender {    private static final int SEND_NUMBER=5;        public static void main(String[] args){        ConnectionFactory connectionFactory;        Connection connection =null;        Session session;        Destination destination;        MessageProducer producer;                connectionFactory=new ActiveMQConnectionFactory(                ActiveMQConnection.DEFAULT_USER,                ActiveMQConnection.DEFAULT_PASSWORD,                "tcp://localhost:61616");        try{            connection = connectionFactory.createConnection();            connection.start();                        session=connection.createSession(Boolean.TRUE,                    Session.AUTO_ACKNOWLEDGE);                        destination=session.createQueue("JMeterQueue");                        producer=session.createProducer(destination);            producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);            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 JMSException{        for(int i=1;i<SEND_NUMBER;i++){            TextMessage message=session.createTextMessage("ActiveMq send "+i);            System.out.println("ActiveMq send "+i);            producer.send(message);        }    }}

 

Public class Receiver {public static void main (String [] args) {ConnectionFactory connectionFactory; Connection connection = null; Session session; Destination destination; MessageConsumer consumer; connectionFactory = new ActiveMQConnectionFactory (ActiveMQConnection. DEFAULT_USER, ActiveMQConnection. DEFAULT_PASSWORD, "tcp: // localhost: 61616"); try {connection = connectionFactory. createConnection (); Connection. start (); session = connection. createSession (Boolean. TRUE, Session. AUTO_ACKNOWLEDGE); destination = session. createQueue ("JMeterQueue"); consumer = session. createConsumer (destination); while (true) {TextMessage message = (TextMessage) consumer. receive (10000); if (null! = Message) {System. out. println ("Message receive" + message. getText ();} else {break;} session. commit (); // session. after commit, Messages in Messages Enqueued will be consumed, and Messages Dequeued will be added; // if no commit is enabled, Messages Dequeued will always be 0, every time the consumer er is started, all unconsumed messages will be received.} catch (Exception e) {e. printStackTrace ();} finally {try {if (null! = Connection) connection. close () ;}catch (Throwable ignore ){}}}}

 

3.2 p2p example

Public class QueueSender {// Number of public static final int SEND_NUM = 5; // tcp address public static final String BROKER_URL = "tcp: // localhost: 61616"; // target, create public static final String DESTINATION = "mq. p2p. queue "; public static void run () throws Exception {QueueConnection connection = null; QueueSession session = null; try {// create a link factory QueueConnectionFactory factory = new ActiveMQCon NectionFactory (ActiveMQConnection. DEFAULT_USER, ActiveMQConnection. DEFAULT_PASSWORD, BROKER_URL); // create a connection = factory through the factory. createQueueConnection (); // start the connection. start (); // create a session = connection. createQueueSession (Boolean. TRUE, Session. AUTO_ACKNOWLEDGE); // creates a Message Queue (queue Queue = session. createQueue (DESTINATION); // creates the message sender javax. jms. queueSender sender = session. create Sender (queue); // sets the persistence mode sender. setDeliveryMode (DeliveryMode. NON_PERSISTENT); sendMessage (session, sender); // submit the session. commit ();} catch (Exception e) {throw e;} finally {// close releasing resources if (session! = Null) {session. close () ;}if (connection! = Null) {connection. close () ;}} public static void sendMessage (QueueSession session, javax. jms. queueSender sender) throws Exception {for (int I = 0; I <SEND_NUM; I ++) {String message = "Send message No." + (I + 1) + "entries"; Message msg = session. createTextMessage (message); sender. send (msg) ;}} public static void main (String [] args) throws Exception {QueueSender. run ();}}

 

Public class QueueReceiver {// tcp address public static final String BROKER_URL = "tcp: // localhost: 61616"; // target, create public static final String TARGET = "mq. p2p. queue "; public static void run () throws Exception {QueueConnection connection = null; QueueSession session = null; try {// create a connection factory QueueConnectionFactory factory = new ActiveMQConnectionFactory (ActiveMQConnection. DEFAULT_USER, CtiveMQConnection. DEFAULT_PASSWORD, BROKER_URL); // create a connection = factory through the factory. createQueueConnection (); // start the connection. start (); // create a session = connection. createQueueSession (Boolean. TRUE, Session. AUTO_ACKNOWLEDGE); // creates a Message Queue (queue Queue = session. createQueue (TARGET); // creates the message producer javax. jms. queueReceiver already ER = session. createReceiver (queue); receiver. setMessageListener (new M EssageListener () {public void onMessage (Message msg) {if (msg! = Null) {TextMessage map = (TextMessage) msg; try {System. out. println (map. getText ();} catch (JMSException e) {e. printStackTrace () ;}}}); // shut down the Thread after Ms of sleep. sleep (1000*20); // submit the session. commit ();} catch (Exception e) {throw e;} finally {// close releasing resources if (session! = Null) {session. close () ;}if (connection! = Null) {connection. close () ;}} public static void main (String [] args) throws Exception {QueueReceiver. run ();}}

 

3.3 subscription example

Public class TopicSender {// Number of public static final int SEND_NUM = 5; // tcp address public static final String BROKER_URL = "tcp: // localhost: 61616"; // target, create public static final String DESTINATION = "mq. topic "; public static void run () throws Exception {TopicConnection connection = null; TopicSession session = null; try {// create a connection factory TopicConnectionFactory factory = new ActiveMQConnect IonFactory (ActiveMQConnection. DEFAULT_USER, ActiveMQConnection. DEFAULT_PASSWORD, BROKER_URL); // create a connection = factory through the factory. createTopicConnection (); // start the connection. start (); // create a session = connection. createTopicSession (Boolean. TRUE, Session. AUTO_ACKNOWLEDGE); // creates a Message Queue Topic = session. createTopic (DESTINATION); // create a message sender TopicPublisher publisher = session. createPublishe R (topic); // sets the persistence mode publisher. setDeliveryMode (DeliveryMode. NON_PERSISTENT); sendMessage (session, publisher); // submit the session. commit ();} catch (Exception e) {throw e;} finally {// close releasing resources if (session! = Null) {session. close () ;}if (connection! = Null) {connection. close () ;}} public static void sendMessage (TopicSession session, TopicPublisher publisher) throws Exception {for (int I = 0; I <SEND_NUM; I ++) {String message = "message sent" + (I + 1) + ""; TextMessage msg = session. createTextMessage (message); publisher. send (msg) ;}} public static void main (String [] args) throws Exception {TopicSender. run ();}}

 

Public class topickerer {// tcp address public static final String BROKER_URL = "tcp: // localhost: 61616"; // target, create public static final String TARGET = "mq. topic "; public static void run () throws Exception {TopicConnection connection = null; TopicSession session = null; try {// create a connection factory TopicConnectionFactory factory = new ActiveMQConnectionFactory (ActiveMQConnection. DEFAULT_USER, Activ EMQConnection. DEFAULT_PASSWORD, BROKER_URL); // create a connection = factory through the factory. createTopicConnection (); // start the connection. start (); // create a session = connection. createTopicSession (Boolean. TRUE, Session. AUTO_ACKNOWLEDGE); // creates a Message Queue Topic = session. createTopic (TARGET); // create a message producer TopicSubscriber subscriber = session. createSubscriber (topic); subscriber. setMessageListener (new Message Listener () {public void onMessage (Message msg) {System. out. println (msg) ;}}); // shut down the Thread after Ms of sleep. sleep (1000*20); // submit the session. commit ();} catch (Exception e) {throw e;} finally {// close releasing resources if (session! = Null) {session. close () ;}if (connection! = Null) {connection. close () ;}} public static void main (String [] args) throws Exception {TopicReceiver. run ();}}