JSP actions are XML tags that direct the server to use existing
components or control the behavior of the JSP engine. JSP Actions
consist of a typical (XML-based) prefix of "jsp" followed by a
colon, followed by the action name followed by one or more
attribute parameters.
There are six JSP Actions:
< jsp : include / >
< jsp : forward / >
< jsp : plugin / >
< jsp : usebean / >
< jsp : setProperty / >
< jsp : getProperty / >