EL语言的目的：
用于无java代码的JSP页面
创建el1.jsp，el2.jsp
el1.jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!
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
>
<
form
action="el2.jsp">
username: <
input
type="text" name="username">
<
input
type="submit" value="submit">
</
form
>
<% session.setAttribute("hello", "world"); %>
</
body
>
</
html
>
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el2.jsp
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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!
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
>
<%= request.getParameter("username") %><
br
>
el表达式： ${param.username}
<
br
>
<%= session.getAttribute("hello") %><
br
>
el表达式： ${sessionScope.hello}
</
body
>
</
html
>
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效果图
本文转自Work Hard Work Smart博客园博客，原文链接：http://www.cnblogs.com/linlf03/p/7710422.html，如需转载请自行联系原作者
