February 2002
Beginner to intermediate
544 pages
10h 23m
English
book
Java™ Message Service API Tutorial and Reference: Messaging for the J2EE™ Platform
by Mark Hapner, Rich Burridge, Rahul Sharma, Joseph Fialli, Kim Haase
Content preview from Java™ Message Service API Tutorial and Reference: Messaging for the J2EE™ Platform
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4.3. A Simple Publish/Subscribe Example
This section describes the publishing and subscribing programs in a pub/sub example that uses a message listener to consume messages asynchronously. This section then explains how to compile and run the programs, using the J2EE SDK 1.3.
4.3.1. Writing the Pub/Sub Client Programs
The publishing program, SimpleTopicPublisher.java, performs the following steps:
1. |
Performs a JNDI API lookup of the TopicConnectionFactory and topic
|
2. |
Creates a connection and a session
|
3. |
Creates a TopicPublisher
|
4. |
Creates a TextMessage
|
5. |
Publishes one or more messages to the topic
|
6. |
Closes the connection, which automatically closes the session and TopicPublisher
|
The receiving program, SimpleTopicSubscriber.java
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