JMS beginner -Environment help

Question

I read the JMS tutorial on the sun's website. Still some of the concepts are not clear to me. I'm trying to understand JMS as analogous to JDBC. Can somebody answer the following questions
1) In JDBC paradigm, You have JDBC API, and a JDBC implementation(The jar file provided by the database vendor) and the database(eg Oracle , sybase). Through out the JMS tutorial, they talk about only JMS API and Messaging provider.
2) My environment is eclipse,tomcat. What do i need to write a j2ee component that puts a message on IBM MQ?
Thanks in advance.

Answer 1

I have done it using J2SE - the approach is similar except I assume you will be using a Message Driven Bean.
1.You need the MQ JMS jar files on your classpath. E.g. (not sure if all of these are required, but I always have them all):
com.ibm.mq.jar
com.ibm.mq.pcf.jar
com.ibm.mq.jms.jar
connector.jar
dhbcore.jar
jms.jar
jta.jar
mqcontext.jar2.You need to have a JNDI configuration file on your classpath root: (change the URL to host:port/channel you are using. 1414/SYSTEM.DEF.SVRCONN are the defaults).
java.naming.factory.inital=com.ibm.mq.jms.context.WMQInitialContextFactory
java.naming.provider.url=localhost:1414/SYSTEM.DEF.SVRCONN
3. Make sure you have MQ 6.0.2.2 (fix packs installed), and set up your 1414 queue manager with a JNDI provider. Set up a queue connection factory "myQCF" and a destination "myQueue" which itself references an actual queue on your queue manager.
4. In J2SE, something along the lines of:
import javax.naming.*;
import javax.jms.*;
Context ctx = new InitialContext();
QueueConnectionFactory factory = (QueueConnectionFactory) ctx.lookup( "myQCF");
QueueConnection conn = factory.createQueueConnection();
Destination dest = (Destination) ctx.lookup( "myQueue");
Session session = conn.createSession( false, Session.AUTO_ACKNOWLEDGE);
TextMessage message = session.createTextMessage( "This is a test message");
MessageProducer prod = session.createProducer( dest);
producer.send( message);