AMQ的一些简单实战

最新推荐文章于 2025-07-23 16:50:50 发布

原创最新推荐文章于 2025-07-23 16:50:50 发布 · 1.4k 阅读

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一、创建客户端

public class Sender {

	public static void main(String[] args) throws Exception{
		
		//第一步:建立connectionFactory工厂对象【需填入用户名、密码、要连接的地址】
		ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("bhz","bhz","tcp://localhost:61616");
		
		//第二步:通过ConnectionFactory工厂对象创建一个Connection连接,并且调用Connection的start方法开启连接【connection默认是关闭的】
		Connection connection = connectionFactory.createConnection();
		connection.start();
		
		//第三步:通过connection创建session会话(上下文环境对象),用于接收消息,参数配置1为是否启用事务,参数配置2为签收模式【一般我们设置为自动签收】
	//	Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

		//使用事务的方式进行消息的发送
	//	Session session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
		
		//使用CLIENT端签收的方式
		Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
		
		//第四步:通过session创建Destination对象,指的是一个客户端用来指定生产消息目标和消费消息来源的对象,在PTP模式中,Destination被称作Queue即队列;在Pub/Sub模式,Destination被称作Topic即主题.在程序中可以使用多个Queue和Topic.
		Destination destination = session.createQueue("queue1");
		
		//第五步:通过session对象创建消息的发送和接收对象(生产者和消费者)MessageProducer/MessageConsumer
		MessageProducer messageProducer = session.createProducer(null);
		
		//第六步:可以使用MessageProducer的setDeliveryMode方法为其设置持久化特性和非持久化特性(DeliveryMode)
		messageProducer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
		
		//第七步:使用JMS规范的TextMessage形式创建数据(通过session对象),并用MessageProducer的send方法发送数据
		for (int i = 1; i <= 5; i++) {
			TextMessage textMessage = session.createTextMessage("helloworld"+i);
			//第一个参数: 目的地
			//第二个参数: 消息
			//第三个参数: 是否持久化
			//第四个参数: 优先级【0-9  0-4表示普通    5-9表示加急  默认4】
			//第五个参数: 消息在mq上的存放有效期【单位毫秒】
			messageProducer.send(destination, textMessage, DeliveryMode.NON_PERSISTENT, i, 1000*60*2);
			System.out.println("生产者:"+textMessage.getText());
		}
		
		//使用事务提交
		//session.commit();
		
		if (connection!=null) {
			connection.close();
		}
	}
}

二、创建接收端

public class Receiver {

public static void main(String[] args) throws Exception{
		
		//第一步:建立connectionFactory工厂对象【需填入用户名、密码、要连接的地址】
		ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("bhz","bhz","tcp://localhost:61616");
		
		//第二步:通过ConnectionFactory工厂对象创建一个Connection连接,并且调用Connection的start方法开启连接【connection默认是关闭的】
		Connection connection = connectionFactory.createConnection();
		connection.start();
		
		//第三步:通过connection创建session会话(上下文环境对象),用于接收消息,参数配置1为是否启用事务,参数配置2为签收模式【一般我们设置为自动签收】
		Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
		
		//第四步:通过session创建Destination对象,指的是一个客户端用来指定生产消息目标和消费消息来源的对象,在PTP模式中,Destination被称作Queue即队列;在Pub/Sub模式,Destination被称作Topic即主题.在程序中可以使用多个Queue和Topic.
		Destination destination = session.createQueue("queue1");
		
		//第五步:通过session对象创建消息的发送和接收对象(生产者和消费者)MessageProducer/MessageConsumer
		MessageConsumer messageConsumer = session.createConsumer(destination);
			
		//第七步:使用JMS规范的TextMessage形式创建数据(通过session对象),并用MessageProducer的send方法发送数据
		while (true) {
			TextMessage msg = (TextMessage) messageConsumer.receive();
			//手动去签收消息,另起一个线程(TCP)去通知我们的MQ服务,确认签收
			Thread.sleep(1000);
			msg.acknowledge();
			if(msg == null) break;
			System.out.println(msg.getText());
		}

		if (connection!=null) {
			connection.close();
		}
	}
}

三、发布

public class Publish {

	private ConnectionFactory factory;
	private Connection connection;
	private Session session;
	private MessageProducer producer;
	public Publish(){
		try {
			factory = new ActiveMQConnectionFactory(
					"bhz",//ActiveMQConnection.DEFAULT_USER, 
					"bhz",//ActiveMQConnection.DEFAULT_PASSWORD,
					"tcp://localhost:61616");
		    connection = factory.createConnection();
		    connection.start();
		    session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
		    producer = session.createProducer(null);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public void sendMessage() throws Exception{
		Destination destination = session.createTopic("topic1");
		TextMessage textMessage = session.createTextMessage("我是内容");
		producer.send(destination, textMessage);
	}
	
	public static void main(String[] args) throws Exception {
		Publish p = new Publish();
		p.sendMessage();
	}
}

四、用户订阅

public class Consumer1 {

	private ConnectionFactory factory;
	private Connection connection;
	private Session session;
	private MessageConsumer consumer;
	public Consumer1(){
		try {
			factory = new ActiveMQConnectionFactory(
					"bhz",//ActiveMQConnection.DEFAULT_USER, 
					"bhz",//ActiveMQConnection.DEFAULT_PASSWORD,
					"tcp://localhost:61616");
		    connection = factory.createConnection();
		    connection.start();
		    session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public void receive() throws Exception{
		Destination destination = session.createTopic("topic1");
		consumer = session.createConsumer(destination);
		consumer.setMessageListener(new Listener());
	}
	
	class Listener implements MessageListener{

		public void onMessage(Message message) {
			try {
				System.out.println("consumer1收到消息:"+((TextMessage)message).getText());
			} catch (JMSException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
	}
	
	public static void main(String[] args) throws Exception {
		Consumer1 p = new Consumer1();
		p.receive();
	}
}

五、配置安全认证

1、 activemq.xml中

在<shutdownHooks>
<bean xmlns="http://www.springframework.org/schema/beans" class="org.apache.activemq.hooks.SpringContextHook" />
</shutdownHooks>下面添加

<plugins>
       <simpleAuthenticationPlugin>
           <users>
               <authenticationUser username="bhz" password="bhz" groups="users,admins"/>
               </users>
           </simpleAuthenticationPlugin>
</plugins>
2、对应的java代码要改成

//第一步:建立connectionFactory工厂对象【需填入用户名、密码、要连接的地址】
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory("bhz","bhz","tcp://localhost:61616");

3、页面登录:http://127.0.0.1:8161/ 还是按照jconf/jetty-real.properties中的配置来
# Defines users that can access the web (console, demo, etc.)
# username: password [,rolename ...]
admin: admin, admin