Pre requisites for struts

[Jigeshs Shahs]

Hi all,
I am currently learning Servlets and JSp and I am looking forward to learn struts ,spring and Hibernate.
So all I wanted to know is that Is it necessacary to learn EJB for Spring struts and Hibernate or can these 3 technologies directly.
And what should be my approach so that I can also learn at the time should be able to apply it properly.

Thanks in advance.

[Bear Bibeault]

EJB is not a pre-requisite for any of them.

[David Newton]

None of them are dependent on each other, although Spring can be used with all of them.