beans.xml配置内容：

<?xml version="1.0" encoding="UTF-8"?>  <beans xmlns="http://www.springframework.org/schema/beans"      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"      xmlns:context="http://www.springframework.org/schema/context"      xmlns:tx="http://www.springframework.org/schema/tx"       xmlns:aop="http://www.springframework.org/schema/aop"      xmlns:mvc="http://www.springframework.org/schema/mvc"      xmlns:jee="http://www.springframework.org/schema/jee"      xsi:schemaLocation="http://www.springframework.org/schema/mvc      http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd          http://www.springframework.org/schema/tx           http://www.springframework.org/schema/tx/spring-tx-3.0.xsd          http://www.springframework.org/schema/aop           http://www.springframework.org/schema/aop/spring-aop-3.0.xsd          http://www.springframework.org/schema/beans           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd          http://www.springframework.org/schema/context           http://www.springframework.org/schema/context/spring-context-3.0.xsd          http://www.springframework.org/schema/jee           http://www.springframework.org/schema/jee/spring-jee-3.0.xsd">             <!-- 打开基于注解的配置 -->       <context:annotation-config/>              <aop:aspectj-autoproxy />             <!-- 开启组件自动扫描 -->      <context:component-scan base-package="org.rsun.ams"/>                <!-- 读取外部属性文件 -->      <context:property-placeholder location="classpath:DataSource.properties"/>             <!-- 配置数据源 -->      <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"           init-method="init" destroy-method="close">          <!-- 初始化连接数量； -->          <property name="initialSize" value="0" />          <!-- 最大并发连接数 -->          <property name="maxActive" value="20" />          <!-- 最大空闲连接数 -->          <property name="maxIdle" value="20" />          <!-- 最小空闲连接数 -->          <property name="minIdle" value="0" />          <!-- 最大等待时长 -->          <property name="maxWait" value="60000" />          <!-- 超过时间限制是否回收 -->          <property name="removeAbandoned" value="true" />          <!-- 超过时间限制多长； -->          <property name="removeAbandonedTimeout" value="180"/>                                      <!-- 数据源连接参数配置； -->          <property name="username" value="${username}"/>          <property name="url" value="${url}"/>          <property name="password" value="${password}"/>          <property name="driverClassName" value="${driverClassName}"/>                 </bean>               <!-- 配置SessionFactory -->      <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">          <property name="dataSource" ref="dataSource"/>               <property name="packagesToScan" value="org.rsun.ams.core.model"/>          <property name="hibernateProperties">              <props>                  <prop key="hibernate.dialect">${hibernate.dialect}</prop>                  <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>                  <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>                  <prop key="hibernate.format_sql">${hibernate.format_sql}</prop>              </props>          </property>      </bean>             <!-- 配置事务管理器 -->      <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">          <property name="sessionFactory" ref="sessionFactory"/>      </bean>               <!-- 定义切面 -->      <aop:config>          <aop:pointcut expression="execution(* org.rsun.ams.service.*.* (..))" id="txPointCut"/>          <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>      </aop:config>             <!-- 声明式事务 -->      <tx:advice id="txAdvice" transaction-manager="transactionManager">                       <tx:attributes>                  <tx:method name="add*" propagation="REQUIRED"/>                  <tx:method name="remove*" propagation="REQUIRED"/>                  <tx:method name="update*" propagation="REQUIRED"/>                  <tx:method name="init*" propagation="REQUIRED"/>                                 <tx:method name="*" read-only="true" propagation="REQUIRED"/>          </tx:attributes>               </tx:advice>              <!-- 开启事务注解      <tx:annotation-driven transaction-manager="transactionManager"/>       -->                 </beans>