Help getting started with JMS
I'm having some problems getting JMS up and
running.
I've activated the jms entry in the
server.xml. I've checked the jms log file, and it seems to be getting
started. I'm using the default port of 9127. Unfortunately, when I
run my application client, I get the following exception:
javax.jms.JMSException: Unable to connect to
JMSServer (localhost:127.0.0.1:9127)
I'm currently using a queue. My jms.xml
configurations for this are:
jms-server port="9127"
host="localhost" queue-connection-factory
location="jms/theQueueConnectionFactory"host="localhost"port="9127"
/
queue name="Demo Queue" location="jms/demoQueue"
persistence-file="../persistence/jms/demoQueue.queue"
descriptionA dummy
queue/description/queue
My jndi properties for my application
are:
java.naming.factory.initial=com.evermind.server.ApplicationClientInitialContextFactoryjava.naming.provider.url=ormi://localhost/java.naming.security.principal=admin
accountjava.naming.security.credentials=admin
password
And last but not least, my application-client.xml
is:
?xml version="1.0"?!DOCTYPE
application-client PUBLIC "-//Sun Microsystems, Inc.//DTD J2EE Application
Client 1.2//EN" "http://java.sun.com/j2ee/dtds/application-client_1_2.dtd"application-client
resource-ref
res-ref-namejms/theQueueConnectionFactory/res-ref-name
res-typejavax.jms.QueueConnectionFactory/res-type
res-authContainer/res-auth
/resource-ref
resource-ref
res-ref-namejms/demoQueue/res-ref-name
res-typejavax.jms.Queue/res-type
res-authContainer/res-auth
/resource-ref/application-client
My client program is very basic:
public static void main(String []
argv) {
try
{ Context context = new
InitialContext();
QueueConnectionFactory qfactory =
(QueueConnectionFactory)context.lookup("java:comp/env/jms/theQueueConnectionFactory");
Queue myqueue =
(Queue)context.lookup("java:comp/env/jms/demoQueue");
QueueConnection qconn =
qfactory.createQueueConnection();
qconn.start(); QueueSession
qsess = qconn.createQueueSession(false,
Session.AUTO_ACKNOWLEDGE);
QueueSender qsend =
qsess.createSender(myqueue);
qsend.send(qsess.createTextMessage("Message"));
System.out.println("sent
message!");
qconn.close();
} catch (Exception e)
{
e.printStackTrace();
} }
Any ideas as to what I'm doing wrong?? Obviously, something is hosed
on my configuration.
Thanks for any help.
Joe
Bean managed Transactions Help
I'm trying to get a session bean that uses
bean-managed transactions to work. Basically, I've got a
transaction-type of 'Bean' in my ejb-jar.xml file. It's also a
stateful session bean. Don't know if that makes a difference or
not.
In my code, I have the lines:
try {
if(context.getUserTransaction().getStatus() !=
javax.transaction.Status.STATUS_ACTIVE) throw
new EJBException("Transaction is not
active!");
context.getUserTransaction().begin();
context is an EJBContext I initialize during
setSessionContext. Unfortunately, it never gets that far. There's
never a transaction that is active. It blows up in the 'if'
statement:
javax.transaction.TransactionRolledBackException:
javax.ejb.EJBException
Is there something else that I need to be aware of
inhandling bean-managed transactions??
Thanks for all your help.
Joe
Transactions help - nevermind
Nevermind the last message I wrote on help with transactions. I got it. My mind is fluff today. :) Thanks anyways. Joe
More help for the newbie - javax.naming.NamingNotFoundException
I'm trying to learn ejb's using Orion's web
server. I'm currently running 1.5.4. I appreciate all the help I've
gotten so far.
Basically, I'm trying to get the CabinBean example
from O'Reilly publishings "Enterprise JavaBeans 2nd Edition" working. I
think I'm pretty close. I just need to understand a couple
things.
I'm basically referencing the enterprise beans from
an application outside the ejb container (a regualar class with a static void
main method). I've got all the required things put together. I have
the ejb-jar.xml in the META-INF of the cabin.jar. I have the
application.xml in the META-INF of the cabin.ear. I have an
application-client.xml in a META-INF of where my application is running.
It seems to be looking at the application xml like it should.
The problem is, when i do:
Context jndiContext = new
InitialContext();Object ref =
jndiContext.lookup("java:comp/env/ejb/CabinHome");
The client fails on the lookup statement. I
get the following error:
javax.naming.NamingNotFoundException: ejb/CabinHome
not found in Application Client
Now, when I look at my beans in the orionconsole,
it doesn't look like they are necessarily deployed under comp/env/ejb/. It
looks like it's listed under comp. Maybe this doesn't matter.
I've done some RMI programming in the past, and
understand some things about the naming lookup. For starters, where is it
specified where the beans actually get binded to?? For instance, with rmi,
if I had a bean called 'whatever', I could explicitly bind it to
"newbean/whatever", and then my lookup statement would be:
lookup("newbean/whatever"). Could someone explain this to me a
bit...
Mostly, I'm just trying to get my beans located
from my client program. Any insight on this would be greatly
appreciated.
Also, In my jndi.properties file, I'm using
ApplicatonClientInitialContextFactory. When I tried using
RMIInitialContextFactory, i got errors. Just curious as to what the
differences are, and what the proper factory is, and where it should be
used.
Thanks again for all of your help.
Joe
HELP! Newbie with orion and EJB's
I need some help understanding the configuration of Orion so that I canlearn EJB. I understand most of the concepts behind it, but am failing inconfiguring my server properly.Right now, I'm doing the Cabin bean example out of Enterprise JavaBeans (2ndEd) by O'Reilly publishing. I'm doing the first example with the basiccabin bean, and static application (I'm not looking up the entity beans froma servlet - I am looking them up from a static void main method in a class).Anyways, I'm getting the following error:"Error reading application-client descriptor: No location specified and notsuitable instance of the type 'com.titan.cabin.Cabin' found for the ejb-refejb/Cabin"I have the application being deployed properly. I have an ejb-jar.xml inthe META-INF directory in my cabin.jar. I have an application.jar in theMETA-INF directory of my cabin.ear file. I have an application-client.xmlfile in the META-INF directory where my application Client_1.class resides.When I invoke the client, I set the classpath to reference the directorywhere Client_1.class is, so that it can find the application-client.xmlfile, and it does. But I'm getting that error.Any help would be greatly appreciated.Thank you,Joe
