activeMQ连接失败问题-连接池配置处理

<bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
    	<constructor-arg index="0" value="${amq.username}"/>
    	<constructor-arg index="1" value="${amq.password}"/>
    	<constructor-arg index="2" value="${amq.brokerurl}"/>
    	<property name="useAsyncSend" value="true"></property>
    	<property name="clientID" value="prod"></property>
    </bean>
		<!--new  add  begin-->
	<bean id="cachingConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
		<property name="targetConnectionFactory" ref="connectionFactory"/>
		<property name="sessionCacheSize" value="100" />
	</bean>
          	<!--new  add  begin-->
    <bean id="singleConnectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">
    	<!--<property name="targetConnectionFactory" ref="connectionFactory"></property>-->
    	<property name="targetConnectionFactory" ref="cachingConnectionFactory"></property>
    </bean>