项目配置完，启动tomcat报错。Context initialization failed。
[DEBUG] 2018-08-21 15:54:33,179 Found XML schema [http://www.springframework.org/schema/tx/spring-tx.xsd] in classpath: org/springframework/transaction/config/spring-tx-3.2.xsd
[DEBUG] 2018-08-21 15:54:33,198 Loading bean definitions
[DEBUG] 2018-08-21 15:54:33,234 Loaded NamespaceHandler mappings: {...}
[ERROR] 2018-08-21 15:54:33,374 Context initialization failed
org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from class path resource [applicationContext.xml];
nested exception is java.lang.NoClassDefFoundError: org/aopalliance/intercept/MethodInterceptor
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:412)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
......jdk版本1.7，spring版本3.2
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns="http://www.springframework.org/schema/beans"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 引入外部属性文件 -->
<context:property-placeholder location="classpath:jdbc.properties" />
<!-- 配置连接池c3p0 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcDriver" value="${jdbc.driver}" />
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="jdbcUsername" value="${jdbc.username}" />
<property name="jdbcPassword" value="${jdbc.password}" />
</bean>
<!-- 配置hibernate相关属性 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<!-- 注入连接池 -->
<property name="dataSource" ref="dataSource"></property>
<!-- 配置hibernate属性 -->
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
<!-- 加载hibernate映射文件 -->
<property name="mappingResource">
<list>
<value>com/lmx/employee/domain/Department.hbm.xml</value>
<value>com/lmx/employee/domain/Employee.hbm.xml</value>
</list>
</property>
</bean>
<!-- 配置action -->
<!-- 配置service -->
<!-- 配置dao -->
<!-- 配置事务管理器 -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<!-- 注入sessionFactory -->
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<!-- 开启注解事务 -->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>看了好多博客的讲解和解决方法，最后还是没看懂，也没解决。如上问题怎么解决？
