整合hibernate4.2和spring框架，出现No Session found for current threa报错


如果没有开启事务管理，Hibernate4就会报错，原因是如果不指定@Transactional事务管理

Hibernate4下，需要在web.xml中指定

<!-- openSessionInView配置 -->

    <filter>

        <filter-name>openSessionInViewFilter</filter-name>

        <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>

        <init-param>

            <param-name>singleSession</param-name>

            <param-value>true</param-value>

        </init-param>

    </filter>

    <filter-mapping>

        <filter-name>openSessionInViewFilter</filter-name>

        <url-pattern>*.html</url-pattern>

    </filter-mapping>