有的地方讲关闭session要在web.xml中加入
<filter>
    <filter-name>lazyLoadingFilter</filter-name>
    <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>lazyLoadingFilter</filter-name>
    <url-pattern>*.action</url-pattern>
</filter-mapping>
有的地方又说关闭session是在applicationContext.xml里<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">中加入destroy-method="close",变成
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">这两种方法效果一样呢还是有哪些区别呢?