JSP Life Cycle

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JSP Life Cycle

A JSP life cycle can be defined as the entire process from its creation till the destruction which is similar to a Servlet life cycle with an additional step which is required to translate a JSP into Servlet.

Life cycle of a JSP Page

• Translation of JSP Page to Servlet
• Compilation of JSP Page
• Classloading (class file is loaded by the classloader)
• Instantiation (Object of the Generated Servlet is created).
• Initialization ( jspInit() method is invoked by the container).
• Reqeust processing ( _jspService() method is invoked by the container).
• Destroy ( jspDestroy() method is invoked by the container).

Life cycle method of JSP

• jspInit()
• _jspService()
• jspDestroy()

We can override jspInti(), jspDestroy(). But we can not override _jspService() method.

To inform the programmer that you should not override the service() method the method name is started with '_' symbol.

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