December 2003
Intermediate to advanced
764 pages
24h 58m
English
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Accessing Parameter Values with JSTL Actions
Example 8-2 shows a page with the same form as in Example 8-1, but with the form’s action attribute pointing back to the JSP page that contains it and JSTL actions adding the submitted values to the response.
Example 8-2. Accessing parameters with JSTL (input_jstl.jsp)
<%@ page contentType="text/html" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>User Info Entry Form</title>
</head>
<body bgcolor="white">
<form action="input_jstl.jsp" method="post">
<table>
<tr>
<td>Name:</td>
<td>
<input type="text" name="userName">
</td>
</tr>
<tr>
<td>Birth Date:</td>
<td>
<input type="text" name="birthDate">
</td>
<td>(Use format yyyy-mm-dd)</td>
</tr>
<tr>
<td>Email Address:</td>
<td>
<input type="text" name="emailAddr">
</td>
<td>(Use format name@company.com)</td>
</tr>
<tr>
<td>Gender:</td>
<td>
<input type="radio" name="gender" value="m" checked>Male<br>
<input type="radio" name="gender" value="f">Female
</td>
</tr>
<tr>
<td>Lucky number:</td>
<td>
<input type="text" name="luckyNumber">
</td>
<td>(A number between 1 and 100)</td>
</tr>
<tr>
<td>Favorite Foods:</td>
<td>
<input type="checkbox" name="food" value="z">Pizza<br>
<input type="checkbox" name="food" value="p">Pasta<br>
<input type="checkbox" name="food" value="c">Chinese
</td>
</tr>
<tr>
<td colspan=2>
<input type="submit" value="Send Data">
</td>
</tr>
</table>
</form>
You entered:<br>
Name: <c:out value="${param.userName}" /><br> Birth Date: ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.