FreeMarker is a ???template engine???; a generic tool to generate text output (anything from
HTML to autogenerated source code) based on templates. It??™s a Java package, a class
library for Java programmers. It??™s not an application for end-users in itself, but something
that programmers can embed into their products.
FreeMarker is designed to be practical for the generation of HTML Web pages, particularly
by servlet-based applications following the MVC (Model View Controller) pattern.
The idea behind using the MVC pattern for dynamic Web pages is that you separate the
designers (HTML authors) from the programmers. Everybody works on what they are
good at. Designers can change the appearance of a page without programmers having
to change or recompile code, because the application logic (Java programs) and page
design (FreeMarker templates) are separated. Templates do not become polluted with
complex program fragments. This separation is useful even for projects where the programmer
and the HMTL page author is the same person, since it helps to keep the
application clear and easily maintainable.
Although FreeMarker has some programming capabilities, it is not a full-blown programming
language like PHP.
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