JBoss EAP MessageBean的调用(Topic)

通讯流程图,其中EJB扮演了client2的角色
jms-publisher-subscriber-model.png

首先是Server端的开发及设置:
1、增加一个用户:

bin\add-user.bat

用户名密码随便,但要属于guest组

2、启动Server

standalone.bat -server-config=standalone-full.xml 

3、新建Topic

jboss-cli.bat --connect
jms-topic add --topic-address=neoTopic --entries=topic/neoTopic,java:jboss/exported/jms/topic/neoTopic

4、新建java项目
4.1、写一个TopicBean
MessageTopicBean .java

package com.neohope.ejb.test;

import javax.ejb.ActivationConfigProperty;
import javax.ejb.MessageDriven;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.TextMessage;

/**
 * Created by Hansen
 */
@MessageDriven(mappedName = "MessageTopicBean",activationConfig = {
        @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Topic"),
        @ActivationConfigProperty(propertyName = "destination", propertyValue = "topic/neoTopic"),
        @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge")
})
public class MessageTopicBean implements javax.jms.MessageListener {
    public MessageTopicBean() {
    }

    @Override
    public void onMessage(Message message) {
        try {
            System.out.println("MessageTopicBean.onMessage invoked");
            if(message instanceof TextMessage)
            {
                TextMessage textMessage = (TextMessage)message;
                System.out.println("Message: " + textMessage.getText());
            }
            else
            {
                System.out.println("Message is not a TextMessage");
            }
        }
        catch (JMSException e) {
            e.printStackTrace();
        }
    }
}

4.2、打jar包,或者自己压缩为TestEJBServer.jar

5、新建一个ear项目
5.1增加application.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<application xmlns="http://java.sun.com/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_6.xsd"
             version="6">
    <description>EAR Test</description>
    <display-name>EAR Test</display-name>
    <module>
        <ejb>TestEJBServer.jar</ejb>
    </module>
    <library-directory>lib</library-directory>
</application>

5.2打ear包,或自己压缩为TestEar.ear

5.3TestEar的结构为:

│  TestEJBServer.jar
│
├─lib
└─META-INF
        application.xml

6.通过EAP进行部署

到这里服务端已经完成了。

然后是客户端的设置:
1、通过Topic方式访问

package com.neohope.ejb.test;

import javax.jms.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.Hashtable;

/**
 * Created by Hansen
 */
public class TestTopicBean {
    public static void main(String[] args) throws NamingException, JMSException {

        final Hashtable jndiProperties = new Hashtable();
        jndiProperties.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
        jndiProperties.put(Context.PROVIDER_URL, "remote://localhost:4447");
        final InitialContext ctx = new InitialContext(jndiProperties);


        TopicConnectionFactory factory = (TopicConnectionFactory) ctx.lookup("jms/RemoteConnectionFactory");
        TopicConnection connection = factory.createTopicConnection("user001", "user001#");
        TopicSession session = connection.createTopicSession(false, TopicSession.AUTO_ACKNOWLEDGE);

        Topic topic = (Topic) ctx.lookup("jms/topic/neoTopic");
        TextMessage msg = session.createTextMessage("Topic Test Message");
        TopicPublisher publisher = session.createPublisher(topic);
        publisher.publish(msg);

        session.close();
        connection.close();
    }
}

2、通过MessageProducer方式访问

package com.neohope.ejb.test;

import javax.jms.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.Hashtable;

/**
 * Created by Hansen
 */
public class TestTopicBean {
    public static void main(String[] args) throws NamingException, JMSException {
        final Hashtable jndiProperties = new Hashtable();
        jndiProperties.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
        jndiProperties.put(Context.PROVIDER_URL, "remote://localhost:4447");
        final InitialContext ctx = new InitialContext(jndiProperties);

        ConnectionFactory connectionFactory = (ConnectionFactory) ctx.lookup("jms/RemoteConnectionFactory");
        Destination destination = (Destination) ctx.lookup("jms/topic/neoTopic");
        Connection connection = connectionFactory.createConnection("user001", "user001#");
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        MessageProducer producer = session.createProducer(destination);
        connection.start();

        TextMessage msg = session.createTextMessage("Topic Test Messagee");
        producer.send(msg);

        session.close();
        connection.close();
    }
}

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