JSTL Functions - startsWith()
The fn:startsWith() function determines whether an input string starts with a specified substring.
Syntax:
The fn:startsWith() function has following syntax:
boolean startsWith(java.lang.String, java.lang.String)
JSTL Example :
<%@ 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>JSTL Tutorial</title> </head> <body> <c:set var="string" value="https://www.c4learn.com/"/> <c:if test="${fn:startsWith(string, 'http')}"> <p>HTTP Protocol</p> </c:if> <c:if test="${fn:startsWith(string, 'https')}"> <p>HTTPS Protocol</p> </c:if> </body> </html>
Output :
HTTP Protocol