springside4 tomcat上找不到dataSource

<?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:jdbc="http://www.springframework.org/schema/jdbc"  
	xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:jpa="http://www.springframework.org/schema/data/jpa"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
		http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd
		http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
		http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"
	default-lazy-init="true">

	<description>Spring公共配置 </description>

	<!-- 使用annotation 自动注册bean, 并保证@Required、@Autowired的属性被注入 -->
	<context:component-scan base-package="com.hisome.tornado.cac">
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
	</context:component-scan>

	<!-- Jpa Entity Manager 配置 -->
	<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
		<property name="dataSource" ref="dataSource"/>
		<property name="jpaVendorAdapter" ref="hibernateJpaVendorAdapter"/>
		<property name="packagesToScan" value="com.hisome.tornado.cac"/>
		<property name="jpaProperties">
			<props>
				<!-- 命名规则 My_NAME->MyName -->
				<prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>
			</props>
		</property>
	</bean>
	
	<bean id="hibernateJpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
		<property name="databasePlatform">
			<bean factory-method="getDialect" class="org.springside.modules.persistence.Hibernates">
				<constructor-arg ref="dataSource"/>
			</bean>
		</property>
	</bean>

	<!-- Spring Data Jpa配置 -->
 	<jpa:repositories base-package="com.hisome.tornado.cac"  transaction-manager-ref="transactionManager" entity-manager-factory-ref="entityManagerFactory"/>
   
	<!-- Jpa 事务配置 -->
	<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
		<property name="entityManagerFactory" ref="entityManagerFactory"/>
	</bean>

	<!-- 使用annotation定义事务 -->
	<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />

	<!-- JSR303 Validator定义 -->
 	<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />
	
	<!-- production环境 -->
 	<beans profile="production">
 		<context:property-placeholder ignore-unresolvable="true"