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In JSP Include Directive,Most web applications have contents that is included in many pages. These type of reusable contents can be put in a page fragment, and that page fragment can be included the top level pages. This functionality is supported using the include directive of JSP.
Lets say you have a common left navbar across all pages of the web application. The navbar can be created in a file navbar.jspf. The extension jspf is used here for fragment as a good practise (using jsp extension also works fine). The main file can then include the nav bar using the include directive as shown below.
| <%@include file=”navbar.jspf%> |
JSP page will behave as if the contents of navbar were defined in the main page. The XML compatible syntax for the include directive is –
| <jsp:directive.include file=”pageFragmentURL”/> |