fn:toUpperCase() Function

JSP 标准标签库JSP Standard Tag Library

The fn:toUpperCase() function converts all characters in a string to uppercase.

Syntax

The syntax of the fn:toUpperCase() function is as follows:

${fn:toUpperCase(<string>)}

Example Demo

The following example demonstrates the functionality of this function:

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ 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>使用 JSTL 函数</title>
</head>
<body>

<c:set var="string1" value="I am from example"/>
<c:set var="string2" value="${fn:toUpperCase(string1)}" />

<p>字符串为 : ${string2}</p>

</body>
</html>

The output is as follows:

字符串为 : I AM FROM EXAMPLE

JSP 标准标签库JSP Standard Tag Library

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