after run,result is:
set.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<jsp:useBean id="user" class="com.first.bean.User"></jsp:useBean>
<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0.1 Transitional //EN" >
<html>
<head>
<title>使用<c:set>标签</title>
</head>
<body>
<c:set value="王月1" var="name1" scope="session"></c:set>
<c:set var="name2" scope="session">李月</c:set>
<c:set value="张3" target="${user}" property="name"></c:set>
<c:set target="${user}" property="age">20</c:set>
<li>从session中得到的值:${sessionScope.name1}</li>
<li>从session中得到的值:${sessionScope.name2}</li>
<li>从Bean中得到的name值:<c:out value="${user.name}"></c:out></li>
<li>从Bean中得到的age值:<c:out value="${user.age}"></c:out></li>
</body>
</html>