The Java EE 5 Tutorial (PDF) - Oracle Software Downloads

Writing Simple JMS Client Applications
920
Destination type is topic
To end program, type Q or q, then
Reading message: This is message 1
Reading message: This is message 2
Reading message: This is message 3
Message is not a TextMessage
The last line appears because the program has received the non-text control message sent by
the Producer program.
3. Type Q or q and press Return to stop the program.
4. Now run the programs using a queue. In this case, as with the synchronous example, you
can run the Producer program first, because there is no timing dependency between the
sender and receiver:
appclient -client producer.jar queue 3
The output of the program looks like this:
Destination type is queue
Sending message: This is message 1
Sending message: This is message 2
Sending message: This is message 3
5. Run the AsynchConsumer program:
appclient -client asynchconsumer.jar queue
The output of the program looks like this:
Destination type is queue
To end program, type Q or q, then
Reading message: This is message 1
Reading message: This is message 2
Reading message: This is message 3
Message is not a TextMessage
6. Type Q or q to stop the program.
A Simple Example of Browsing Messages in a Queue
This section describes an example that creates a QueueBrowser object to examine messages on a
queue, as described in “JMS Queue Browsers” on page 905. This section then explains how to
compile, package, and run the example using the Application Server.
The following sections describe the steps in creating and running the example:
■ “Writing the Client Program for the Queue Browser Example” on page 921
■ “Compiling and Packaging the MessageBrowser Client” on page 922
■ “Running the Clients for the Queue Browser Example” on page 922
The Java EE 5Tutorial • June 2010