org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thre

<filter>

    <filter-name>OpenSessionInViewFilter</filter-name>

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

</filter>

<filter-mapping>

    <filter-name>OpenSessionInViewFilter</filter-name>

    <url-pattern>/*</url-pattern>

</filter-mapping>