The Context Params page is where you specify the value of parameters that convey initialization information for the Web application, such as a Web master’s address or the name of a system that holds critical data. They can be retrieved using the getInitParameter and getInitParameterNames methods of the ServletContext interface.
In a JSP page, the parameter can be retrieved in a scriptlet using the application implicit object, for example:
<%
String iURL = application.getInitParameter("iURL");
%>
