producer.xml配置部分：

<context:annotation-config/>

    <!-- ActiveMQ为我们提供的ConnectionFactory -->

    <bean id="targetConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">

    <property name="brokerURL" value="tcp://localhost:61616"/>

    </bean> 

    <!-- spring jms 为我们提供连接池 -->  

<bean id="connectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory">

<property name="targetConnectionFactory" ref="targetConnectionFactory"/>

</bean>

每次一运行就报如下错误：

Exception in thread "main" org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.jms.connection.SingleConnectionFactory] for bean with name 'connectionFactory' defined in class path resource [producer.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.jms.connection.SingleConnectionFactory

at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1377)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:640)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:608)

at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1476)

at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:999)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:739)

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)

at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)

at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)

at com.imooc.jms.producer.AppProducer.main(AppProducer.java:10)

Caused by: java.lang.ClassNotFoundException: org.springframework.jms.connection.SingleConnectionFactory

at java.net.URLClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at org.springframework.util.ClassUtils.forName(ClassUtils.java:250)

at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:394)

at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1424)

at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1369)

... 10 more