I want to use Spring and Hibernate to deal with the data access layer.

But I'm not sure which can act as the view layer .

Struts is good,I used it in my projects,it works but not so flexible,I want

a more flexible way ,anyone can give some advice?


Another thing boring me ,The sessionFactory is configured through an Xml

file,Does it instantiated once or everytime when use it?


beg for your reply.............thanks.

Well, with a middle tier based on Spring and Hibernate, you can basically put any web MVC framework on top. The web controllers just need access to your Spring-managed business objects, which is easy enough if the controllers have access to the ServletContext.

Of course, I consider Spring's own web MVC division as a clean and elegant implementation of web MVC, more flexible and less intrusive than Struts. But I'm biased, I guess ;-) We also have people using Tapestry and WebWork2 with a Spring-managed middle tier.

A Hibernate SessionFactory just gets instantiated once for each application. In a Spring-managed middle tier, there is typically a LocalSessionFactoryBean definition with singleton status. All data access objects then just reference the SessionFactory that this bean exposes.

Have a look at the docs at the Spring website (http://www.springframework.org/documentation.html), in particular the article "Web MVC with the Spring Framework", for an overview of web tier options with Spring.

Juergen

If you use struts then you would be calling the spring application context from your struts Actions:



You dont want to initialize your spring context all the time, because it would create the hibernate sessionfactory.