JavaServer Pages, 3rd Edition

Variables

Variables are named references to data (objects), created by the application or made available implicitly by the EL. Application-specific variables can be created in many ways, for instance using the <jsp:useBean> action. They can also be created by custom actions or be passed to the JSP page by a servlet. Every object that is available in one of the JSP scopes can be used as an EL variable:

${aScopedVariable}