Use of <x:param> tag of JSTL

In this section we will learn how to use <x:param> tag of Xml tag library of Jstl. This tag is used to add parameter to transform tag. When user want to transform more than one xml files then we will use <x:param> tag, to add xml files in transform tag.

In the code given below we have used doc1, doc2, doc3 as xml source files and use param tag to add these files as parameter to transform tag.

Standard Syntax : <%@ taglib prefix="x" uri="http://java.sun.com/jsp/jstl/xml" %>

Attributes:
name	It defines name of the transformation parameter.
value	value of the transformation parameter.

param_xmlJstlTag.jsp

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> 
<%@ taglib uri="http://java.sun.com/jsp/jstl/xml" prefix="x" %> 
<c:set var="doc1">
<document>
<description>This is first document.</description>
</document>
</c:set> 
<x:parse varDom="doc2">
<document>
<description>This is second document.</description>
</document>
</x:parse> 
<x:parse varDom="doc3">
<document>
<description>This is third document.</description>
</document>
</x:parse> 
<c:set var="xslt">
<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" omit-xml-declaration="yes" indent="yes" />
<xsl:param name="doc2"/>
<xsl:param name="doc3"/>

<xsl:template match="/">
<xsl:value-of select="/document/description" /><br />
<xsl:value-of select="$doc2/document/description" /><br />
<xsl:value-of select="$doc3/document/description" /><br />
</xsl:template>

</xsl:stylesheet>
</c:set> 
<html>
<head><title>Example of x:param tag of JSTL</title></head>
<body>
<x:transform xml="${doc1}" xslt="${xslt}">
<x:param name="doc2" value="${doc2}" />
<x:param name="doc3" value="${doc3}" />
</x:transform>
</body>
</html>

Output :

Download Source Code

Related Tags for Use of tag of JSTL:
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