[JSP]常用EL

来源：互联网发布：淘宝提高信誉编辑：程序博客网时间：2024/05/16 11:06
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>       <title>EL test</title>      </head>    <body>  <div>  <c:forEach items="${param}" var="var">  ${var.key}<input type="text" id="UI_${fn:toUpperCase(var.key)}" name="UI_${fn:toUpperCase(var.key)}" value="${var.value}"><br>  </c:forEach>  </div>  <div>${empty param.user}</div>  <div>${empty param.user? "good":"bad"}</div>  <div>${pageContext.request.queryString }</div>  <div>${pageContext.request.requestURL }</div>  <div>${pageContext.request.contextPath }</div>  <div>${pageContext.request.method }</div>  <div>${pageContext.request.protocol }</div>  <div>${pageContext.request.remoteUser }</div>  <div>${pageContext.request.remoteAddr }</div>  <div>${pageContext.session.new }</div>  <div>${pageContext.session.id }</div>  <div>${pageContext.servletContext.serverInfo }</div>    <div>${param}</div>  <div>${paramValues}</div>  <div>${header}</div>  <div>${headerValues}</div>  <div>${cookie}</div>  <div>${initParam}</div>  <div>${pageContext}</div>  <div>${pageScope}</div>  <div>${requestScope}</div>     <div>${sessionScope}</div>     <div>${applicationScope}</div>         </body></html>
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