- <c:set var="subStr" value="abcdefghijksdf"
- <c:choose>
- <c:when test="${fn:length(subStr) > 2}">
- <c:out value="${fn:substring(subStr, 0, 2)}......" />
- </c:when>
- <c:otherwise>
- <c:out value="${subStr}" />
- </c:otherwise>
- </c:choose>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %> <html> <head> <title>使用 JSTL 函數</title> </head> <body> <c:set var="string1" value="This is first String."/> <c:set var="string2" value="${fn:substring(string1, 5, 15)}" /> <p>生成的子字符串爲 : ${string2}</p> </body> </html>