JSP ARCHITECTURE

JSP
pages are high level extension of servlet and it enable the developers
to embed java code in html pages. JSP files are finally compiled into
a servlet by the JSP engine. Compiled servlet is used by the engine to
serve the requests.
javax.servlet.jsp package defines two
interfaces:
These interfaces defines the three methods for the compiled
JSP page. These methods are:
- jspInit()
- jspDestroy()
- _jspService(HttpServletRequest request,HttpServletResponse
response)
In the compiled JSP file these methods are present. Programmer can
define jspInit() and jspDestroy() methods, but the _jspService(HttpServletRequest
request,HttpServletResponse response) method is generated
by the JSP engine.

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