在Tomcat中集成ActiveMQ

tomcat版本：6.0.20
activeMQ版本：5.2

网上有一些介绍，但是很多都是采用JNDI的方式，麻烦，而且tomcat和activemq要分别启动，理想的方式是启动tomcat的同时启动activemq，在web工程中直接使用activemq

1，新建web工程，并导入基本jar包

2，修改web.xml

<context-param>
	   <param-name>brokerURI</param-name>
	   <param-value>/WEB-INF/activemq.xml</param-value>
	</context-param>

    <listener>
    <listener-class>org.apache.activemq.web.SpringBrokerContextListener</listener-class>
    </listener>

3,增加WEB-INF/activemq.xml

<beans
  xmlns="http://www.springframework.org/schema/beans"
  xmlns:amq="http://activemq.apache.org/schema/core"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
  http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core-5.2.0.xsd   
  http://activemq.apache.org/camel/schema/spring http://activemq.apache.org/camel/schema/spring/camel-spring.xsd">

    <!-- The Oracle Datasource that will be used by the Broker -->
	<bean id="oracle-ds" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
      <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>
      <property name="url" value="jdbc:oracle:thin:@localhost:1521:orcl"/>
      <property name="username" value="activemq"/>
      <property name="password" value="neusoft"/>
      <property name="maxActive" value="200"/>
      <property name="poolPreparedStatements" value="true"/>
    </bean>

	<!-- ==================================================================== -->
	<!-- ActiveMQ Broker Configuration -->
	<!-- ==================================================================== -->
	<broker xmlns="http://activemq.apache.org/schema/core" brokerName="localhost">
		 <!-- The store and forward broker networks ActiveMQ will listen to -->
        <networkConnectors>
            <!-- by default just auto discover the other brokers -->
            <networkConnector name="default-nc" uri="multicast://default"/>
            <!-- Example of a static configuration:
            <networkConnector name="host1 and host2" uri="static://(tcp://host1:61616,tcp://host2:61616)"/>
            -->
        </networkConnectors>

		<!--
			to enable Stomp support uncomment this <connector> <serverTransport
			uri="stomp://localhost:61626"/> </connector>
		-->
         
		<persistenceAdapter>
            <jdbcPersistenceAdapter dataSource="#oracle-ds"/>
            <journaledJDBC useDatabaseLock="false"></journaledJDBC>
        </persistenceAdapter>
        
		
		<transportConnectors>
            <transportConnector name="openwire" uri="tcp://localhost:61616" discoveryUri="multicast://default"/>
            <transportConnector name="xmpp" uri="xmpp://localhost:61222"/>
        </transportConnectors>
	</broker>

</beans>

OK,将web工程添加进tomcat，启动tomcat，大功告成。

注意事项：
1，导入的基本jar包，只保证能够提供activemq的基本服务。
2，使用数据库来存储activemq的message，也可以不使用。
3，本文使用数据库为oracle,其他数据库的配置请参照下载zip的activemq.xml
4，如此配置activemq，启动的时候必须连接网线，否则会报错。
5，activemq.xml中的<journaledJDBC useDatabaseLock="false"></journaledJDBC>是保证更换数据库的时候activemq依然能够顺利启动