ActivityMQ实现生产者和消费者

来源：互联网发布：淘宝嘉年华是什么活动编辑：程序博客网时间：2024/05/16 23:36

生产者：

public class Producer {

//默认连接用户名
private static final String USERNAME = ActiveMQConnection.DEFAULT_USER;
//默认连接密码
private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD;
//默认连接地址：tcp://localhost:61616
private static final String BROKEURL = ActiveMQConnection.DEFAULT_BROKER_URL;
//发送的消息数量
private static final int SENDNUM = 10;

public static void main(String[] args) {
//连接工厂，JMS 用它创建连接
ConnectionFactory connectionFactory;
//连接，JMS 客户端到JMS Provider 的连接
Connection connection = null;
//会话：一个发送或接收消息的线程
Session session;
//消息的目的地;消息发送给谁
Destination destination;
//消息生产者
MessageProducer messageProducer;
//实例化连接工厂
connectionFactory = new ActiveMQConnectionFactory(Producer.USERNAME, Producer.PASSWORD, Producer.BROKEURL);

try {
//通过连接工厂获取连接
connection = connectionFactory.createConnection();
//启动连接
connection.start();
//创建session
session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
//创建一个名称为HelloWorld的消息队列
destination = session.createQueue("HelloWorld");
//创建消息生产者
messageProducer = session.createProducer(destination);
//发送消息
sendMessage(session, messageProducer);

session.commit();

}catch (Exception e) {
e.printStackTrace();
}finally{
if(connection != null){
try {
connection.close();
} catch (JMSException e) {
e.printStackTrace();
}
}
}

}
/**
* 发送消息
* @param session
* @param messageProducer 消息生产者
* @throws Exception
*/
public static void sendMessage(Session session,MessageProducer messageProducer) throws Exception{
for (int i = 0; i < Producer.SENDNUM; i++) {
//创建一条文本消息
TextMessage message = session.createTextMessage("ActiveMQ 发送消息" +i);
System.out.println("发送消息：Activemq 发送消息" + i);
//通过消息生产者发出消息
messageProducer.send(message);
}

}
}

消费者：

public class Consumer {

//默认连接用户名
private static final String USERNAME = ActiveMQConnection.DEFAULT_USER;
//默认连接密码
private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD;
//默认连接地址
private static final String BROKEURL = ActiveMQConnection.DEFAULT_BROKER_URL;

public static void main(String[] args) {
ConnectionFactory connectionFactory;//连接工厂
Connection connection = null;//连接

Session session;//会话接受或者发送消息的线程
Destination destination;//消息的目的地

MessageConsumer messageConsumer;//消息的消费者

//实例化连接工厂
connectionFactory = new ActiveMQConnectionFactory(Consumer.USERNAME, Consumer.PASSWORD, Consumer.BROKEURL);

try {
//通过连接工厂获取连接
connection = connectionFactory.createConnection();
//启动连接
connection.start();
//创建session
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
//创建一个连接HelloWorld的消息队列
destination = session.createQueue("HelloWorld");
//创建消息消费者
messageConsumer = session.createConsumer(destination);

while (true) {
//设置接收者接收消息的时间，为了便于测试，这里定为100s
TextMessage textMessage = (TextMessage) messageConsumer.receive(100000);
if(textMessage != null){
System.out.println("收到的消息:" + textMessage.getText());
}else {
break;
}
}

}catch (Exception e) {
e.printStackTrace();
}finally{
if(connection != null){
try {
connection.close();
} catch (JMSException e) {
e.printStackTrace();
}
}
}

}
}

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