A page directive is to inform the JSP engine about the headers or facilities that page should get from the environment.
Typically, the page directive is found at the top of almost all of our JSP pages.
There can be any number of page directives within a JSP page (although the attribute – value pair must be unique).
The syntax of the include directive is: <%@ page attribute="value">
Example:<%@ include file="header.jsp" %>
