This Function use to check the Substring before value of a String. 

 This Program will show how to execute the <fn:substringbefore> in JSTL. As we declare syntax of library function. Then we declare the variables that will contain the stored value and implements the function as required. And a print tag that will print the output on the web browser. All the tags had also been closed as per mandate.

fn:substringBefore.jsp

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

<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>

<html>

<head>

      <title>&lt;fn:substringBefore&gt; IN JSTL</title>

</head>

  <body>

         <center><h3>Example of Substring Before In JSTL</h3></center>

         <c:set var="str1" value="Welcome to Java server pages World."/>

         <c:set var="str2" value="${fn:substringBefore(str1,'World')}" />

         <p><b><center><p>Real Sub String -: ${str2}</p>

  </body>

</html>  

        JSTL fn:substringBefore() Function





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Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.