Java/JSTL/Parameters — различия между версиями
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Текущая версия на 06:17, 1 июня 2010
JSTL Remove Parameters
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %>
<html>
<head>
<title>Set Examples</title>
</head>
<body>
<h3>Remove Example</h3>
<c:set var="test" value="Hello World" scope="page" />
The value in the variable test before remove is
<c:out value="${test}" />
<br />
<c:remove var="test" scope="page" />
The value in the variable test after remove is
<c:out value="${test}" />
<br />
</body>
</html>
JSTL Request URL And Passing Parameters
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %>
<html>
<head>
<title>Query String Example</title>
</head>
<body>Your favorite color is:
<b>
<c:out value="${param.color}" />
</b>
<br />
<br />
Choose your favorite color:
<br />
<br />
== JSTL: Set page parameters ==
<!-- start source code -->
<source lang="java">
<html>
<head>
<title>Set page parameters (2)</title>
</head>
<body>
This page allows you to enter information that is sent as request
parameters to another page.<br />
There are two parameters, each with two values. <br />
The next page list the different parameters with their values. <P />
<form action="listPageParameters.jsp" method="get">
<table>
<tr><td>Enter an adjective:</td>
<td><input type="text" name="adjective" /></td>
</tr>
<tr><td>Enter an adjective:</td>
<td><input type="text" name="adjective" /></td>
</tr>
<tr><td>Enter a noun:</td>
<td><input type="text" name="noun" /></td>
</tr>
<tr><td>Enter a noun:</td>
<td><input type="text" name="noun" /></td>
</tr>
</table>
<input type="submit" value="Send parameters" />
</form>
</body>
</html>
//listPageParameters.jsp
<%@ taglib prefix="c" uri="http://java.sun.ru/jstl/core" %>
<html>
<head>
<title>List page parameters</title>
</head>
<body>
You entered the following parameters:<br />
<ul>
<c:forEach var="pageParameter" items="${param}">
<li> <c:out value="pageParameter" /> has the values
<c:forEach var="currentValue" items="${pageParameter.value}">
<c:out value="${currentValue}" />
</c:forEach>
</c:forEach>
</ul>
</body>
</html>
JSTL Set Parameters
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %>
<html>
<head>
<title>Set Examples</title>
</head>
<body>
<h3>Set With No Body</h3>
<c:set var="str" value="Hello World" />
str =
<c:out value="${str}" />
<br />
<h3>Set With Body</h3>
<c:set var="str">Hello, Again World</c:set>
str =
<c:out value="${str}" />
<br />
</body>
</html>
