WebSphere Application Server - IBM Redbooks

Action tag Description
Used to enclose template data in XML
representation. The interpretation of it to
pass its content through to value of out.
For now we will concentrate on the param, include, and forward tags.
All action tags use the same tag syntax, which, unlike the previous tags, is XML
compatible. Action tags have two forms, either an open or closed body tag. The
exception is the param action, which only appears in the form of a closed body
tag.
The param action tag
The param tag usually appears within the body of one of the other tags, and
allows the inclusion of a key/value type attribute. For example, to set a parameter
named foo with the value bar, the following tag may be used:
The value attribute may be an expression tag that is evaluated at runtime. For
example:
The include action tag
The include action tag provides a way to include static and dynamic content
within the output produced by the JSP page containing the tag. The content
included by an include action tag is parsed at request-time. This contrasts with
the include directive, which is parsed at translation time.
The syntax of the tag is:
Or as an open-bodied tag:
The page attribute specifies the relative URL, or URI, for the resource to include.
The resource may be a static file, JSP, or servlet. The value of the page attribute
may be specified via a JSP expression tag. The flush attribute specifies a
boolean value indicating whether the page buffer should be flushed before the
inclusion.
Chapter 8. Working with JSPs 255