JSTL forEach inside html form
I am using JSTL to display data in an editable menu. The data is retrieved from a database and the user may change it if required. The problem is that I get a blank page inside the forEach tag.
%@ taglib uri="http://java.sun.com/jsp/jstl/sql" prefix="sql" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<sql:query var="rs" dataSource="jdbc/agenda">
SELECT * FROM cardapios WHERE username="${pageContext.request.remoteUser}"
</sql:query>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="../ChangeMenu" method="POST">
Everything I write here I can see!!!
<c:forEach var="r" items="${rs.rows}">
Restaurante: <input type="text" name="restaurante" value="${r.restaurante}" /> I cant see it!!
Here I have many <input type="text" ..... etc />
</c:forEach>
<input type="submit" value="Salvar" />
</form>
</body>
</html>Well, if I remove the form action, it works properly. So, the data is being retrieved from the database.
Also, do I really have to use <c:forEach> since it will always retrieve just one line from the table? Is there any other way I can get the data from "rs" ?
Thanks!
If you know for certain there is exactly one and only ever one row returned, then you can just access it directly:
<c:set var="r" value="${rs.rows[0]}"/>With regards to the query, it would probably be better using parameter rather than the variable directly:
<sql:query var="rs" dataSource="jdbc/agenda">
SELECT * FROM cardapios WHERE username= ?
<sql:param value="${pageContext.request.remoteUser}"/>
</sql:query>I don't think that would change the functionality, but it would prevent SQL injection attacks.
I don't see how removing the form action would change the display of the html page.
My suggestion would be to view source on the generated HTML page, and see what is being produced by running the page.
Did the query return the results that you wanted? Is it generating valid HTML?
Cheers,
evnafets
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Finding your place in a nested sequence
Plop an ordinary clip in the timeline, move the playhead to a spot in the clip, double-click the clip in the timeline, and the clip pops up in the source monitor with the playhead at the same spot in the clip. Place a nested sequence in a timeline, m
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I am using asha 201. I couldn't install Google Map. Which version of Google map is suitable for this handset & wherefrom can I download this app. Thank You
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Packaging Flashplayer for distribution
I need to create an executable package to install the latest Flashplayer for a group of users that do not have admin rights, has anyone got any tips on how best to do this ?