简单的mq开发
1.下载ActiveMQ
去官方网站下载：http://activemq.apache.org/
2.运行ActiveMQ
解压缩apache-activemq-5.5.1-bin.zip，需要mq的jar包activemq-all-5.9.0.jar
修改配置文件activeMQ.xml，将0.0.0.0修改为localhost
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然后双击apache-activemq-5.5.1\bin\activemq.bat运行ActiveMQ程序。
1.创建class文件ConsumerTest
package on.it.mq;
import javax.jms.JMSException;
public class ConsumerTest implements Runnable {
static Thread t1 = null;
/**
* @param args
* @throws InterruptedException
* @throws InterruptedException
* @throws JMSException
* @throws InterruptedException
*/
public static void main(String[] args) throws InterruptedException {
t1 = new Thread(new ConsumerTest());
t1.setDaemon(false);
t1.start();
/**
* 如果发生异常，则重启consumer
*/
/*while (true) {
System.out.println(t1.isAlive());
if (!t1.isAlive()) {
t1 = new Thread(new ConsumerTest());
t1.start();
System.out.println("重新启动");
}
Thread.sleep(5000);
}*/
// 延时500毫秒之后停止接受消息
// Thread.sleep(500);
// consumer.close();
}
public void run() {
try {
ConsumerTool consumer = new ConsumerTool();
consumer.consumeMessage();
while (ConsumerTool.isconnection) {
}
} catch (Exception e) {
}
}
}
2.创建class文件ConsumerTool
package on.it.mq;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.ExceptionListener;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import javax.jms.MessageListener;
import javax.jms.Message;
import javax.jms.TextMessage;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
public class ConsumerTool implements MessageListener,ExceptionListener {
private String user = ActiveMQConnection.DEFAULT_USER;
private String password = ActiveMQConnection.DEFAULT_PASSWORD;
private String url =ActiveMQConnection.DEFAULT_BROKER_URL;
private String subject = "mytopic";
private Destination destination = null;
private Connection connection = null;
private Session session = null;
private MessageConsumer consumer = null;
public static Boolean isconnection=false;
// 初始化
private void initialize() throws JMSException, Exception {
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(
user, password, url);
connection = connectionFactory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
destination = session.createTopic(subject);
consumer = session.createConsumer(destination);
}
// 消费消息
public void consumeMessage() throws JMSException, Exception {
initialize();
connection.start();
consumer.setMessageListener(this);
connection.setExceptionListener(this);
isconnection=true;
System.out.println("Consumer:->Begin listening...");
// 开始监听
// Message message = consumer.receive();
}
// 关闭连接
public void close() throws JMSException {
System.out.println("Consumer:->Closing connection");
if (consumer != null)
consumer.close();
if (session != null)
session.close();
if (connection != null)
connection.close();
}
// 消息处理函数
public void onMessage(Message message) {
try {
if (message instanceof TextMessage) {
TextMessage txtMsg = (TextMessage) message;
String msg = txtMsg.getText();
System.out.println("Consumer:->Received: " + msg);
} else {
System.out.println("Consumer:->Received: " + message);
}
} catch (JMSException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void onException(JMSException arg0) {
isconnection=false;
}
}
3创建class文件ProducerTest
package on.it.mq;
import java.util.Random;
import javax.jms.JMSException;
public class ProducerTest {
/**
* @param args
*/
public static void main(String[] args) throws JMSException, Exception {
ProducerTool producer = new ProducerTool();
Random random = new Random();
for(int i=0;i<20;i++){
Thread.sleep(random.nextInt(10)*1000);
producer.produceMessage("Hello, world!--"+i);
producer.close();
}
}
}
4创建class文件ProducerTool
package on.it.mq;
import javax.jms.Connection;
import javax.jms.DeliveryMode;
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 ProducerTool {
private String user = ActiveMQConnection.DEFAULT_USER;
private String password = ActiveMQConnection.DEFAULT_PASSWORD;
private String url = ActiveMQConnection.DEFAULT_BROKER_URL;
private String subject = "mytopic";
private Destination destination = null;
private Connection connection = null;
private Session session = null;
private MessageProducer producer = null;
// 初始化
private void initialize() throws JMSException, Exception {
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(
user, password, url);
connection = connectionFactory.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
destination = session.createTopic(subject);
producer = session.createProducer(destination);
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
}
// 发送消息
public void produceMessage(String message) throws JMSException, Exception {
initialize();
TextMessage msg = session.createTextMessage(message);
connection.start();
System.out.println("Producer:->Sending message: " + message);
producer.send(msg);
System.out.println("Producer:->Message sent complete!");
}
// 关闭连接
public void close() throws JMSException {
System.out.println("Producer:->Closing connection");
if (producer != null)
producer.close();
if (session != null)
session.close();
if (connection != null)
connection.close();
}
}
http://localhost:8161/admin/登录后查看消息情况