Transferring Control to Another Web Component

The mechanism for transferring control to another web component from a JSP page uses the functionality provided by the Java Servlet API. You access this functionality from a JSP page with the jsp:forward element:

<jsp:forward page="/main.jsp" /> 

Note that if any data has already been returned to a client, the jsp:forward element will fail with an IllegalStateException.

Param Element

When an include or forward element is invoked, the original request object is provided to the target page. If you wish to provide additional data to that page, you can append parameters to the request object with the param element:

<jsp:include page="..." >
	<jsp:param name="param1" value="value1" />
</jsp:include> 

From the J2EE Tutorial section on JavaServer Pages Technology by Stephanie Bodoff.

Maintained by John Loomis, last updated 31 March 2001