c:choose标签用来选择执行语句
当c:when的test中判断结果为true时执行该标签中的内容；
如果所有c:when的test中判断结果都为false，则执行c:otherwise中的内容；
格式如下：
<c:choose>
<c:when test="testCondition">
Content1
</c:when>
<c:when test="testCondition">
Content2
</c:when>
<c:otherwise>
Content3
</c:otherwise>
</c:choose>
testJSTLChoose.jsp:
程序代码
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><!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>TestJSTLChoose</title></head><body> <form action="testJSTLChoose.jsp" method="post"> Please enter a name:<input type="text" name="name" /> <input type="submit" value="Submit" /> </form> <c:if test="${!empty param.name}"> <c:choose > <c:when test="${param.name == 'magci' }"> Welcome goodman ${param.name } </c:when> <c:when test="${param.name == 'mgc' }"> Welcome ${param.name } </c:when> <c:otherwise> ${param.name } </c:otherwise> </c:choose> </c:if></body></html>
相关资源：JSTL标准标签库 <C:out>、<c:set>、<c:remove>和<c:catch>标记 <c:if>、<c:choose>、<c:when>和<c:otherwise>标记 <c:forEach>和<c:forTokens>标记
