In the directory examples there are 2 sets of examples, these are
JMS Examples - these demonstrate functionality by sending and consuming JMS messages.
Java EE Examples - these demonstrate application server integration, e.g. MDBs, EJBs, Servlets, etc.
All the examples are run using ant. You will need ant installed on your system and the ant bin directory on your path.
The JMS Examples all follow the same format. Each examples is contained in its own directory which contains the following.
build.xml
This is the ant build file used to run the example
src directory
This contains the source code for the example
server0 configuration directory
This contains the configuration files needed to run the server for the example. There may be multiple configuration directories server0, server1 etc for clustered examples etc.
Each example will start one or more stand-alone servers and stop them after the example has completed.
As a quick start we'll run the queue example. For all other examples refer to the main user manual.
Firstly open a Shell or a Command prompt and navigate to the examples/jms/queue directory.
Type the command ant and you should see the following output:
Buildfile: build.xml
run:
init:
compile:
[echo] src.example.dir=/home/andy/projects/JBMTrunk/examples/jms/queue/src
[javac] Compiling 5 source files to /home/andy/projects/JBMTrunk/examples/jms/queue
/build/classes
runExample:
[java] 10:41:04,149 INFO @main [JMSExample] jbm.example.runServer is true
[java] 10:41:04,149 INFO @main [JMSExample] starting server with config 'server0'
logServerOutput true
[java] 10:41:04,149 INFO @main [JMSExample] and vm args: -Xms512M,-Xmx512M,-XX:+U
seParallelGC,-XX:+AggressiveOpts,-XX:+UseFastAccessorMethods,-Djava.util.logging.config.
file=/home/andy/projects/JBMTrunk/examples/jms/common/../../../src/config/stand-alone/no
n-clustered/logging.properties
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:08,437 INFO @main [Journal
StorageManager] AIO journal selected
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:08,437 WARN @main [Journal
StorageManager] AIO wasn't located on this platform, it will fall back to using pure Jav
a NIO. If your platform is Linux, install LibAIO to enable the AIO journal
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:08,437 WARN @main [Securit
yStoreImpl] It has been detected that the cluster admin password which is used to replic
ate management operation from one node to the other has not had its password changed fro
m the installation default. Please see the JBoss Messaging user guide for instructions o
n how to do this.
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:10,941 INFO @main [JBossCo
nnectionFactory] read only is false
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:10,941 INFO @main [JBossCo
nnectionFactory] read only is false
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:10,941 INFO @main [JBossCo
nnectionFactory] read only is false
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:10,991 WARN @main [JMSServ
erManagerImpl] Binding for java:/ConnectionFactory already exists
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:10,991 WARN @main [JMSServ
erManagerImpl] Binding for java:/XAConnectionFactory already exists
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:11,241 INFO @main [Messagi
ngServerImpl] JBoss Messaging Server version 2.0.0.BETA1-SNAPSHOT (Stilton, 101) started
[java] org.jboss.jms.example.SpawnedJMSServer out:10:41:11,241 INFO @main [JBMBoot
strapServer] JBoss Messaging server started
[java] org.jboss.jms.example.SpawnedJMSServer out:STARTED::
[java] 10:41:11,276 INFO @main [JMSExample] using server0/client-jndi.properties f
or jndi
[java] Sent message: This is a text message
[java] Received message: This is a text message
[java]
[java] #####################
[java] ### SUCCESS! ###
[java] #####################
BUILD SUCCESSFUL
Total time: 13 seconds
Congratulations! You have succesfully run your first Jboss Messaging example. Try some of the others.
The Java EE Examples are examples that require an Application Server to run. They include MDB, Servlet, EJB examples etc. For this you will need The JBoss Application Server installed. How to do this is explained in the previous chapters.
We'll use the MDB example for the purposes of this guide. For the other examples refer to the user guide. Before going any further ensure that the Jboss Application Server is running.
Like the other Java EE examples the MDB example is a J2EE Application which first needs deploying in the JBoss Application Server. The first thing we need to do is set the JBOSS_HOME environment property to the location of the JBoss Application Server, in a Linux shell this would be something like:
export JBOSS_HOME=/home/jbossas5.1/build/output/jboss-5.1.0.GA
Once set we can then deploy the application, from inside the examples/javaee/mdb directory run the command:
ant deploy
This will make a copy of the messaging profile in the JBoss Application server and start the server.
In the shell window you should see something like the following output:
Buildfile: build.xml
validate-jboss:
deploy:
deploy-resources:
[copy] Copying 1 file to /home/andy/projects/jbossas5.1/build/output/jboss-5.1.0.GA
/server/default-with-jbm2/deploy/messaging.sar
[copy] Copying 1 file to /home/andy/projects/jbossas5.1/build/output/jboss-5.1.0.GA
/server/default-with-jbm2/deploy/messaging.sar
init:
compile:
jar:
[jar] Building jar: /home/andy/projects/JBMTrunk/examples/javaee/mdb/build/mdb-exa
mple.jar
ear:
[jar] Building jar: /home/andy/projects/JBMTrunk/examples/javaee/mdb/build/mdb-exa
mple.ear
deploy-ear:
[copy] Copying 1 file to /home/andy/projects/jbossas5.1/build/output/jboss-5.1.0.GA
.......
[exec] 16:01:04,607 INFO [JBossASKernel] Class:javax.jms.MessageListener
[exec] 16:01:04,607 INFO [JBossASKernel] Added bean(jboss.j2ee:ear=mdb-example.ear,
jar=mdb-example.jar,name=MessageMDBExample,service=EJB3) to KernelDeployment of:
mdb-example.jar
[exec] 16:01:04,702 INFO [EJBContainer] STARTED EJB: org.jboss.javaee.example.server
.MDBExample ejbName: MessageMDBExample
[exec] 16:01:09,496 INFO [TomcatDeployment] deploy, ctxPath=/mdb-example
[exec] 16:01:09,812 WARNING [config] Unable to process deployment descriptor for cont
ext '/mdb-example'
[exec] 16:01:09,812 INFO [config] Initializing Mojarra (1.2_12-b01-FCS) for context
'/mdb-example'
[exec] 16:01:09,958 INFO [Http11Protocol] Starting Coyote HTTP/1.1 on http-127.0.0.1-
8080
[exec] 16:01:09,990 INFO [AjpProtocol] Starting Coyote AJP/1.3 on ajp-127.0.0.1-8009
[exec] 16:01:10,001 INFO [ServerImpl] JBoss (Microcontainer) [5.1.0.GA (build: SVNTag
=JBoss_5_1_0_GA date=200905151005)] Started in 6m:21s:797ms
We can now run the example, do this by running the following command from within the mdb directory.
ant
You should see some output similar to the following:
Buildfile: build.xml
run:
init:
compile:
runExample:
[java] Sent message: This is a text message
BUILD SUCCESSFUL
Total time: 7 secondsYou may also see some output from the JBoss Application Server, in this instance it is:
16:27:54,703 INFO [STDOUT] message This is a text message received
The application can then be undeployed by running the following command from within the mdb directory.
ant undeploy
This should so some output similar to the following:
Buildfile: build.xml validate-jboss: undeploy: undeploy-misc: [delete] Deleting: /home/andy/projects/jbossas5.1/build/output/jboss-5.1.0.GA /server/default-with-jbm2/deploy/mdb-example.ear [delete] Deleting: /home/andy/projects/jbossas5.1/build/output/jboss-5.1.0.GA /server/default-with-jbm2/deploy/messaging.sar/jbm-queues.xml [delete] Deleting: /home/andy/projects/jbossas5.1/build/output/jboss-5.1.0.GA /server/default-with-jbm2/deploy/messaging.sar/jbm-jms.xml BUILD SUCCESSFUL Total time: 1 second
You can verify that the application has been undeployed by checking the output from the JBoss Application Server, in this isntance it will be something like:
16:36:45,277 INFO [EJBContainer] STOPPED EJB: org.jboss.javaee.example.server.MDBExample
ejbName: MessageMDBExample
Congratulations! you have sucessfully deployed and run a Java EE example.