Best Practices in Java EE Web Development - Learn Java for Web Development - page 139

Here is the output of Listing 3-48:

Clojure
Groovy
Java
Scala

URL-Related Actions
The URL-related actions are for linking, importing, and redirecting in web applications. Table 3-19
describes all the URL-related actions in the core library.

Table 3-19. URL-Related Actions

Action Purpose

<c:import>

Imports the content of a URL-based resource.

<c:param>

Adds request parameters to a URL. This is a nested action of <c:import> , <c:url> ,
and <c:redirect> .

<c:url>

Builds a URL with the proper rewriting rules applied.

<c:redirect>

Sends an HTTP redirect to the client.

Let's take a look at these URL-related actions.

The <c:import>Action
The <c:import> action imports the content of a URL-based resource, providing additional
functionality over the <jsp:include> action. The syntax of the <c:import> action is as follows:

<c:import url ="url [context="context"] [charEncoding="charEncoding"] [scope="application|page|requ
est|session"] [var= "varName"] >
Optional body content for <c:param> sub tags
</c:import>

url , which is the URL of the resource to import.

 The only required attribute is

 <c:param> action, explained next, can be used as a nested tag in the body
content of the <c:import> .
Table 3-20 describes all the attributes used with the <c:import> action.

The