<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@page import="domain.User"%>
<%@page import="java.util.*"%>
<!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>Insert title here</title>
</head>
<body>
<%--EL从四个域中获得某个值${key};---同样是依次从pageContext域，request域，session域，application域中 获取属性，在某个域中获取后将不在向后寻找 --%>
<%--从requestScope中取出数据 --%>
<%
request.setAttribute("requestKey", "requestValue");
%>
${requestScope.requestKey}
<br>
<%--获取域中的user对象 --%>
<%
List<User> list = new ArrayList<>();
User user = new User();
user.setId("123");
user.setUsername("alex");
user.setPassword("pass123");
user.setGander("男");
User user1 = new User();
user1.setId("1234");
user1.setUsername("alex1");
user1.setPassword("pass1231");
user1.setGander("男");
list.add(user);
list.add(user1);
request.setAttribute("list", list);
%>
<br>
<hr>
EL从四个域中获得某个值$ { key } (无空格)
request域内user对象：${user.username}-${user.password}
<%--获取域中的集合 --%>
${requestScope.list}
<br> ${requestScope.list[0].username}
<br> ${requestScope.list[1].username}
<br>
<hr>
<%--获取全局初始化参数 --%>
${initParam }
${initParam.initTestText }
<br>
<%--获得WEB应用的名称--%>
${pageContext.request.contextPath }
</body>
</html>JAVA-WEB 动态页面技术（JSP/EL/JSTL）--- EL部分代码演示
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转载自blog.csdn.net/alexzt/article/details/80909922
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