springMVC调整hibernate4时No Session found for current thread

springMVC整合hibernate4时No Session found for current thread
今天在尝试着把springMVC和hibernate整合到一起, 搭建一个初始的框架, 用spring来管理hibernate的session. 现在sessionFactory已经可以成功注入, 但是在调用sessionFactory.getCurrentSession()方法时报错: org.hibernate.HibernateException: No Session found for current thread, 上网找了一些解决方案, 都没有解决这个问题, 我用的是声明式的注解, 下面贴图贴代码, 请各路英雄答疑解惑.
工程整体结构: 

web.xml: 

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	id="WebApp_ID" version="2.5">
	<display-name>S01</display-name>
	<welcome-file-list>
		<welcome-file>redirect.jsp</welcome-file>
	</welcome-file-list>

	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath*:spring-core.xml</param-value>
	</context-param>

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<listener>
		<description>Introspector缓存清除监听器</description>
		<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
	</listener>

	<!-- 添加spring mvc servlet配置 -->
	<servlet>
		<servlet-name>dispatcher</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath*:spring-servlet.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>dispatcher</servlet-name>
		<url-pattern>*.do</url-pattern>
	</servlet-mapping>

	<!-- 字符集过滤器 -->
	<filter>
		<description>字符集过滤器</description>
		<filter-name>encodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<description>字符集编码</description>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

	<!-- TODO ERROR PAGE -->

</web-app>

spring-core.xml:

<?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:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:util="http://www.springframework.org/schema/util"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-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/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/util http://www.springframework.org/schema/util/spring-util-3.1.xsd ">

	<!-- 只解析除控制器层之外的注解, 避免重复加载导致事务失效  -->
	<context:component-scan base-package="com.deo">
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
	</context:component-scan>

	<!-- 解析properties文件 -->
	<context:property-placeholder location="classpath:jdbc.properties" />

	<!-- 配置dataSource选用c3p0方式 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="driverClass" value="${jdbc.driver}" />
		<property name="jdbcUrl" value="${jdbc.url}" />
		<property name="user" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
		<property name="minPoolSize" value="${jdbc.minPoolSize}" />
		<property name="maxPoolSize" value="${jdbc.maxPoolSize}" />
		<property name="initialPoolSize" value="${jdbc.initialPoolSize}" />
		<property name="maxIdleTime" value="${jdbc.maxIdleTime}" />
		<property name="acquireIncrement" value="${jdbc.acquireIncrement}" />
	</bean>
	
	<!-- 配置sessionFactory -->
	<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">