Categories: JSTL

JSTL fn:escapeXml() Function

In this section we will learn how to use <fn:escapeXml> Tag of JSTL. This tag is used to escape characters that could be interpreted as XML markup. This takes string type as argument and also returns string type.

JSTL escapeXml function is used to escape XML markup characters. EscapeXML function takes only one parameter of type String.

Syntax :

java.lang.String escapeXml(java.lang.String)

JSTL escapeXML function Example:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>JSTL EscapeXML Example</title>
</head>
<body>
    <c:set var="testString" value="This is <b>JSTL escapeXML example</b> in this JSTL function tutorial."></c:set>
 Without escapeXml function : ${testString}
 <br/>
 Using escapeXml function : ${fn:escapeXml(testString)}
</body>
</html>

Output:

Without escapeXml function : This is JSTL escapeXML example in this JSTL function tutorial.

Using escapeXml function : This is <b>JSTL escapeXML example</b> in this JSTL function tutorial.

As you can see above, fn:escapeXml() takes string parameter and returns string after escaping XML markup characters. You can see the difference between output with and without escapeXml function.

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Dinesh Rajput

Dinesh Rajput is the chief editor of a website Dineshonjava, a technical blog dedicated to the Spring and Java technologies. It has a series of articles related to Java technologies. Dinesh has been a Spring enthusiast since 2008 and is a Pivotal Certified Spring Professional, an author of a book Spring 5 Design Pattern, and a blogger. He has more than 10 years of experience with different aspects of Spring and Java design and development. His core expertise lies in the latest version of Spring Framework, Spring Boot, Spring Security, creating REST APIs, Microservice Architecture, Reactive Pattern, Spring AOP, Design Patterns, Struts, Hibernate, Web Services, Spring Batch, Cassandra, MongoDB, and Web Application Design and Architecture. He is currently working as a technology manager at a leading product and web development company. He worked as a developer and tech lead at the Bennett, Coleman & Co. Ltd and was the first developer in his previous company, Paytm. Dinesh is passionate about the latest Java technologies and loves to write technical blogs related to it. He is a very active member of the Java and Spring community on different forums. When it comes to the Spring Framework and Java, Dinesh tops the list!

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