错误是这样的：
当我单独测试dao的时候，会报错：No Session found for current thread
但是把到加入到service时，再测试，就没问题
配置文件如下：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
">
<context:annotation-config/>
<context:component-scan base-package="com.zq"/>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="net.sourceforge.jtds.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/test"></property>
<property name="username" value="root"></property>
<property name="password" value="123456"></property>
<property name="initialSize" value="10"></property>
<property name="maxActive" value="1000"></property>
<property name="maxIdle" value="300"></property>
<property name="minIdle" value="10"></property>
<property name="maxWait" value="10000"></property>
<!--<property name="removeAbandoned" value="true" />
<property name="removeAbandonedTimeout" value="60"/>
<property name="logAbandoned" value="true" />
<property name="testOnBorrow" value="true"/>
<property name="testWhileIdle" value="true"/>
<property name="validationQuery" value="select getdate()"/>-->
</bean>
<!--整合hibernate-->
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<!-- <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>-->