EL基礎 param paramValues 獲取參數
阿新 • • 發佈：2017-12-06
styles 資源 .get myeclips val sch this fire desc
禮悟：
好好學習合思考，尊師重道存感恩。葉見尋根三返一，江河湖海同一體。
虛懷若谷良心主，願行無悔給最苦。讀書鍛煉強身心，誠勸且行且珍惜。
javaEE：7
javaSE：1.8
JSTL：1.2.2
server：tomcat 8.5
browser：Chrome/Firefox
os：windows7 x64
ide：MyEclipse 2017
Get方式接收的參數
MyJsp.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP ‘MyJsp.jsp‘ starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<%-- 單值參數 --%>
${param.name }<br />
<%-- 多值參數 --%>
${paramValues.hobby }<br />
${paramValues.hobby[0] }<br />
${paramValues.hobby[1] }<br />
</body>
</html>
瀏覽器查看該頁面並傳入參數
Post方式接收的參數
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP ‘index.jsp‘ starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<form action="/Day12/MyJsp.jsp" method="post">
<input type="text" value="jizuiku" name="name"/>
<input type="text" value="taiji" name="hobby"/>
<input type="text" value="cook" name="hobby"/>
<input type="submit" value="提交">
</form>
</body>
</html>
MyJsp.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP ‘MyJsp.jsp‘ starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
${param.name }<br />
${paramValues.hobby }<br />
${paramValues.hobby[0] }<br />
${paramValues.hobby[1] }<br />
</body>
</html>
瀏覽器查看相關頁面
學習資源：itcast和itheima視頻庫。如果您有公開的資源，可以分享給我的話，用您的資源學習也可以。
博文是觀看視頻後，融入思考寫成的。博文好，是老師講得好。博文壞，是 給最苦 沒認真。
EL基礎 param paramValues 獲取參數