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How to check if an input string contains a specified substring in JSP?
The fn:contains() function determines whether an input string contains a specified substring.
Syntax
The fn:contains() function has the following syntax −
boolean contains(java.lang.String, java.lang.String)
Example
Following example explains the functionality of fn:contains() function −
<%@ 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>Using JSTL Functions</title> </head> <body> <c:set var = "theString" value = "I am a test String"/> <c:if test = "${fn:contains(theString, 'test')}"> <p>Found test string<p> </c:if> <c:if test = "${fn:contains(theString, 'TEST')}"> <p>Found TEST string<p> </c:if> </body> </html> You will receive the following result −
Found test string
Updated on: 2019-07-30T22:30:25+05:30
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