Spring MVC+Hibernate3 中遇到的問題

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/config/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Could not instantiate cache implementation

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先把這段異常資訊google一把後，得到大部分的解決方案都說是包衝突，在經過一系列的實驗發現根本就不是一回事，繼續尋找下列異常資訊。

Caused by: org.hibernate.HibernateException: Could not instantiate cache implementation

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Caused by: org.hibernate.cache.NoCachingEnabledException: Second-level cache is not enabled for usage [hibernate.cache.use_second_level_cache | hibernate.cache.use_query_cache]

 

隱約得知緩衝配置方面出現問題，發現問題後順著指示找到了applicationContext.xml檔案中的這段配置，提示的意思大概為緩衝不可用，在添加了緩衝配置後一切正常。

    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <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>

                <!-- 添加緩衝配置-->

               <prop key="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider</prop>
            </props>
        </property>
       
        <!-- hbm.xml檔案載入方式-->
         <property name="mappingLocations">
            <list>
                <value>classpath*:/com/train/entity/admin/hbm/*.hbm.xml</value>
                <value>classpath*:/com/train/entity/common/hbm/*.hbm.xml</value>
            </list>
        </property>
        
    </bean>

雖然報的異常與網上其他人幾乎相同，但還是有不一致的地方，對症下藥方可藥到病除。