Nine built-in objects of jsp

page is similar to the this keyword in Java classes. It is an

instance of the request HttpServletRequest interface of an Object object. The request

session that triggers the service call is an instance of the HttpSession class. The response to the request  

An instance of the application ServletContext class, related to the application context

response an instance of the HttpServletResponse interface

Instance of out JspWriter class, used to output the result to the web page

config Instance of ServletConfig class 

exception Exception class object, representing the corresponding exception object pageContext PageContext class instance in the JSP page where the error occurred

, providing access to all objects and namespaces of the JSP page