Apart from simple attribute, JSP also provides fragment tag feature. This can be used to create HTML page template.

Below is an example /WEB-INF/tags/page-template.tag file with two fragment attributes declared: header and content.

<%@ attribute name="header" fragment="true" %>
<%@ attribute name="content" fragment="true" %>



  
    
    
    
  

  
    
  

Now you DRY yourself by reusing this template on your JSP pages. Below is a sample home.jsp:

<%@ taglib tagdir="/WEB-INF/tags" prefix="mycoolsite" %>

  
    
  
  
    
Hello World
  

Read more about JSP custom tag on the Official Java EE Tutorial.