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Dont go for EJB integration with springs . You can use springs with backend Hibernate integration for development.

if you use EJB with springs you will encounter lot of service problems with it ....

If you use annotation it will be difficult to put null value IN Hibernateutil file remove annotation configuration use as given below


import org.hibernate.*;
import org.hibernate.cfg.*;
...

In WEB.XML change the servlet mapping giving the url pattern.

<servlet>
<servlet-name>dispatcher</servlet-name>
...