JNDI 做數據源 spring管理hibernate 的Junit 測試

請問 我這個要怎么做測試啊，總是報錯..
Error creating bean with name 'datasource' defined in class path resource [bean-pub.xml]:
bean-pub.xml 為:
<!--JNDI 配置DataSource -->
<bean id="datasource"
    class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName">
        <value>java:comp/env/jdbc/crm</value>
    </property>
</bean>
   

<!--定義 SessionFactory -->
<bean id="sessionFactory"
    class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="dataSource" ref="datasource"/>