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# JSTL XML <x:set> Tag

The <x:set> tag sets a variable to the value of an XPath expression.

If the XPath expression results in a boolean, <x:set> sets a java.lang.Boolean object; for a string, java.lang.String; and for a number, java.lang.Number.

## Attribute:

The <x:set> tag has following attributes:

Attribute | Description | Required | Default
--- | --- | --- | ---
var | A variable that is set to the value of the XPath expression | Yes | Body
select | The XPath expression to be evaluated | No | None
scope | Scope of the variable specified in the var attribute | No | Page

## Example:

Following example to show you a usage of <x:set> tag:

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

    <html>
    <head>
      <title>JSTL Tags</title>
    </head>
    <body>
    <h3>Books Info:</h3>

    <c:set var="xmltext">
      <books>
        <book>
          <name>Padam History</name>
          <author>ZARA</author>
          <price>100</price>
        </book>
        <book>
          <name>Great Mistry</name>
          <author>NUHA</author>
          <price>2000</price>
        </book>
      </books>
    </c:set>

    <x:parse xml="${xmltext}" var="output"/>
    <x:set var="fragment" select="$output//book"/>
    <b>The price of the second book</b>:
    <c:out value="${fragment}" />
    </body>
    </html>

Now let us try to access above JSP, this would produce following result:

### Books Info:

The price of the second book:[[book: null], [book: null]]

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