JSTL Function fn:substringBefore Example

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Last Updated on 30 August 2019   |   Print  Email


This post helps you understand how to use the <fn:substringBefore> tag in the JSTL function tags library with code example.

The fn:substringBefore function returns a string before the specified substring.

 

JSTL <fn:substringBefore> Syntax:

${fn:substringBefore(<string>, <substring>)}

 

JSTL <fn:substringBefore> Example:

The following JSP example outputs a string before the substring .net

<%@ 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"%>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <title>fn:substringBefore Demo</title>
  </head>
  <body>
   <h1>fn:substringBefore Demo</h1>
   <c:set var="text" value="www.CodeJava.net is great source of information."/>
   <c:set var="website" value="${fn:substringBefore(text,'.net')}" />
   Full Text: <strong><c:out value="${text}"/></strong><br/><br/>
   Text Before Substring .net <strong><c:out value="${website}"/></strong><br/><br/>	
  </body>
</html>

 

Output:

JSTL function fn-substringBefore

 

Other JSTL Function Tags:

contains  |  containsIgnoreCase  |  endsWith |  escapeXml  |  indexOf  |  join  |  length  |  replace  |  split  |  startsWith  |  substring  |  substringAfter  |  toLowercase  |  toUpperCase  |  trim


About the Author:

is certified Java programmer (SCJP and SCWCD). He began programming with Java back in the days of Java 1.4 and has been passionate about it ever since. You can connect with him on Facebook and watch his Java videos on YouTube.



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