jstl forEach逆序输出list

来源：互联网发布：非洲人有多懒知乎编辑：程序博客网时间：2024/05/05 19:03

最近在写代码，有一个功能，需要把后台传递到前台的数据逆序输出，本想通过Collections.reverse(list);对list中的数据进行逆序排列后再传递到后台，但想到for循环都可以逆序输出，就想JSTL是否也有可

    <%@page import="com.jasper.domain.Person"%>    <%@page import="java.util.List"%>    <%@page import="java.util.ArrayList"%>    <%@ 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"%>    <%        //Person对象中有两个属性，age和name        List<Person> persons = new ArrayList<Person>();        Person person1 = new Person();        person1.setAge(12);        person1.setName("小明");        persons.add(person1);        Person person2 = new Person();        person2.setAge(13);        person2.setName("阿飞");        persons.add(person2);        request.setAttribute("persons", persons);    %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">    <html>    <head>    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">    <title>JSTL逆序循环</title>    </head>    <body>        <div>正序</div>    <div>            <table>                <thead>                    <tr>                        <th>年龄</th>                        <th>姓名</th>                    </tr>                </thead>                <tbody>                    <c:forEach var="person" items="${persons }">                        <tr>                            <td>${person.age }</td>                            <td>${person.name }</td>                    </tr>                    </c:forEach>                </tbody>            </table>        </div>        <br />    <div>逆序</div>        <div>            <table>                <thead>                    <tr>                        <th>年龄</th>                        <th>姓名</th>                    </tr>                </thead>                <tbody>                    <c:set var="startIndex" value="${fn:length(persons)-1 }"></c:set>                    <c:forEach var="person" items="${persons }" varStatus="status">                        <tr>                            <td>${persons[startIndex - status.index].age }</td>                            <td>${persons[startIndex - status.index].name }</td>                        </tr>                    </c:forEach>                </tbody>            </table>        </div>        <br />    </body>    </html>

以进行相关操作，结果搞了半个多钟才写出了下面一段代码

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