creating JSP-based application with java classes (business logic) [closed]

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Closed 9 years ago.

I have a Web Application developed inside NetBeans. It uses no frameworks at the moment, there are just some JSP pages. I would like to add some business logic, i.e. some Java classes that would process some data and pass it to the output. I understand, that JSP pages are the View layer. What about the rest (Model and Controller)?

Do I have to use a framework that would handle this (i.e. it's not possible to mix JSP with java class-based business logic without a framework)? Is JSP used only to be compiled into servlets, which have to be managed by something beyond JSP? I'm a newbie, so forgive me if it's trivial ;)

PS I know I can include Java code inside scriplet <% ... %> tags, but that's not what I'm looking for.

Answer 1

• You can call a Java Servlet implementation from your JSPs. (With your forms or the jsp:include and jsp:forward tags)
• You might or might not want to use EJB. (Tutorial)
• A framework is not mandatory though Spring, Hibernate and/or Struts might be useful.

If it is the first time you are using servlets, i recommend you to start with Servlet and POJOs only.

There is plenty of information here http://docs.oracle.com/javaee/6/tutorial/doc/bnafd.html