• page directive
• taglib directive
• include directive

Directives

• Use <%@ ... %> syntax for declarations.
• Use directives to declare information needed by the JSP engine.
• Directives include page, include, and taglib.

page directive

• <%@ page contentType="text/html" %>
• Lets the developer specify packages to include.
• Lets the developer specify more advanced page features.

taglib directive

• <%@ taglib uri="uriToTaglib" prefix="someID" %>
• Lets the developer include tag libraries.
• Tag libraries are generally powerful, reusable components for web developers.
• Tag libraries can be created by local developers, are available open source, or can be purchased.

include directive

• <%@ include file="filename.jsp" %>
• Lets one JSP include another JSP or HTML document.
• The JSP container reads the included file, and creates on servlet.
• Includes occur at translation time.
• If you change the included file ...
• Works differently than <% jsp:include page="filename.jsp" />