51 lines
2.4 KiB
Markdown
51 lines
2.4 KiB
Markdown
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Spring Integration
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==================
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ActiveMQ provides a simple bootstrap class,
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`org.apache.activemq.integration.spring.SpringJmsBootstrap`, for
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integration with Spring. To use it, you configure ActiveMQ as you always
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would, through its various configuration files like
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`activemq-configuration.xml`, `activemq-jms.xml`, and
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`activemq-users.xml`. The Spring helper class starts the ActiveMQ server
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and adds any factories or destinations configured within
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`activemq-jms.xml` directly into the namespace of the Spring context.
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Let's take this `activemq-jms.xml` file for instance:
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<configuration xmlns="urn:activemq"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="urn:activemq /schema/activemq-jms.xsd">
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<!--the queue used by the example-->
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<queue name="exampleQueue"/>
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</configuration>
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Here we've specified a `javax.jms.ConnectionFactory` we want bound to a
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`ConnectionFactory` entry as well as a queue destination bound to a
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`/queue/exampleQueue` entry. Using the `SpringJmsBootStrap` bean will
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automatically populate the Spring context with references to those beans
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so that you can use them. Below is an example Spring JMS bean file
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taking advantage of this feature:
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
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<bean id="EmbeddedJms" class="org.apache.activemq.integration.spring.SpringJmsBootstrap" init-method="start"/>
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<bean id="listener" class="org.apache.activemq.tests.integration.spring.ExampleListener"/>
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<bean id="listenerContainer" class="org.springframework.jms.listener.DefaultMessageListenerContainer">
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<property name="connectionFactory" ref="ConnectionFactory"/>
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<property name="destination" ref="/queue/exampleQueue"/>
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<property name="messageListener" ref="listener"/>
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</bean>
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</beans>
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As you can see, the `listenerContainer` bean references the components
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defined in the `activemq-jms.xml` file. The `SpringJmsBootstrap` class
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extends the EmbeddedJMS class talked about in ? and the same defaults
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and configuration options apply. Also notice that an `init-method` must
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be declared with a start value so that the bean's lifecycle is executed.
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See the javadocs for more details on other properties of the bean class.
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