一个简单的JMS实例（activeMQ）

选择ActiveMQ。

建立一个简单的Maven工程，pom.xml如下：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion>

<groupId>com.gof</groupId>
<artifactId>jms-test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>jms-test</name>
<url>http://maven.apache.org</url>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>

<!-- Add by WXB -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-client</artifactId>
<version>5.10.0</version>
</dependency>

</dependencies>
</project>
创建测试类：

package com.gof.jms.test;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnectionFactory;

public class SimpleMessageSendandReceiveApp {
public static final String user = "system";
public static final String password = "manager";
public static final String url = "tcp://localhost:61616";
public static final String queueName = "test_queue";
public static final String messageBody = "Hello JMS!";
public static final boolean transacted = false;
public static final boolean persistent = false;

public static void main(String[] args){
Connection connection = null;
Session session = null;

try{
// create the connection
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(user, password, url);
connection = connectionFactory.createConnection();
connection.start();

// create the session
session = connection.createSession(transacted, Session.AUTO_ACKNOWLEDGE);
Destination destination = session.createQueue(queueName);

// create the producer
MessageProducer producer = session.createProducer(destination);
if (persistent){
producer.setDeliveryMode(DeliveryMode.PERSISTENT);
}else{
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
}

// create text message
Message message = session.createTextMessage(messageBody);

// send the message
producer.send(message);
System.out.println("Send message: " + ((TextMessage)message).getText());

// create the consumer
MessageConsumer consumer = session.createConsumer(destination);
// blocking till receive the message
Message recvMessage = consumer.receive();
System.out.println("Receive message: " + ((TextMessage)recvMessage).getText());

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

开始测试：

启动ActiveMQ,在admin页面（http://localhost:8161/admin）中创建名为test_queue的Queue：



分步运行程序，当调用：

producer.send(message);
可以看到ActiveMQ接收到了这个消息：



同时也可以看到该Queue当前的Active
Producer：



consumer.receive();
可以看到该消息被消费掉：



Send message: Hello JMS!  

Receive message: Hello JMS!