what is the life cycle of jsp?
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Answer / vijayakumar chinnasamy
jsp life cycle:
===============
1.Page translation - automatically translate the .jsp file
in .java(servlet)file
2.Compilation - automatically compile the .java(servlet)
file and create .class file .
3.Loading - load the compiled servlet into container.
4.Create instance - create instance for loaded servlet
(.java)
5.call jspInit method. (call only one time)
6.call _jspService method
7.call jspDestroy method.(call only one time)
| Is This Answer Correct ? | 10 Yes | 2 No |
Answer / sivasubramanian.k
It is similar to the lifecycle of a servlet only,
They are:
jsp:init()
jsp:service()
jsp:destroy()
The init() method initializes the servlet within jsp and
must be called before the servlet can service any requests.
In the entire life of a servlet, the init() method is
called only once.
After initialization, the servlet can service client-
requests. Each request is serviced in its own separate
thread. The container calls the service() method of the
servlet for every request. The service() method determines
the kind of request being made and dispatches it to an
appropriate method to handle the request. The developer of
the servlet must provide an implementation for these
methods. If a request for a method that is not implemented
by the servlet is made, the method of the parent class is
called, typically resulting in an error being returned to
the requester
.
Finally, the container calls the destroy() method which
takes the servlet out of service. The destroy() method like
init() is called only once in the lifecycle of a Servlet.
| Is This Answer Correct ? | 7 Yes | 1 No |
Answer / vasanth
Actually the said( jspInit(),_jspService(), jspDestroy())
methods are not JSP life cycle methods, they are convinience
methods. bcz when we run above said methods, internally
servlts life cycle methods also runned., they must take the
support of servlets.
so, init(), service(), destroy() methods are the real life
cycle methods of JSP and jspInit(), _jspService(),
jspDestroy() are the convinience methods.... f
if you want to knw full clarification of above said
scenaria, just the open super class source code that is
available in jasper.jar file..
| Is This Answer Correct ? | 1 Yes | 0 No |
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