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Java Tutorial/JSTL/Collection - История изменений
2026-04-22T11:00:19Z
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в 17:44, 31 мая 2010
2010-05-31T17:44:26Z
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<td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 17:44, 31 мая 2010</td>
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Admin: 1 версия
2010-05-31T15:23:25Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== JSTL Updatable Collection ==<br />
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<!-- start source code --><br />
<br />
<source lang="java"><br />
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><br />
<c:if test="${pageContext.request.method=="POST"}"><br />
<c:choose><br />
<c:when test="${param.add!=null}"><br />
<c:if test="${list!=null}"><br />
<c:set var="list" value="${list}," scope="session" /><br />
</c:if><br />
<c:set var="list" value="${list}${param.item}"<br />
scope="session" /><br />
</c:when><br />
<c:when test="${param.remove!=null}"><br />
<c:set var="list2" value="" /><br />
<c:forEach var="item" items="${list}"><br />
<c:if test="${item!=param.item}"><br />
<c:if test="${list2!=""}"><br />
<c:set var="list2" value="${list2}," /><br />
</c:if><br />
<c:set var="list2" value="${list2}${item}" /><br />
</c:if><br />
</c:forEach><br />
<c:set var="list" value="${list2}" scope="session" /><br />
<c:remove var="list2" /><br />
</c:when><br />
</c:choose><br />
</c:if><br />
<html><br />
<head><br />
<title>Updatable Collections</title><br />
</head><br />
<body><br />
<table border="0"><br />
<form method="post"><br />
<tr bgcolor="blue"><br />
<td colspan="2"><br />
<font color="white">Updatable Collections</font><br />
</td><br />
</tr><br />
<tr><br />
<td valign="top"><br />
<select NAME="choice" SIZE="5" width="20"><br />
<c:forEach var="item" items="${list}"><br />
<option><br />
<c:out value="${item}" /><br />
</option><br />
</c:forEach><br />
</select><br />
</td><br />
<td valign="top">Enter a item to add or remove.<br />
<br /><br />
<input width="20" maxwidth="20" name="item" size="20" /><br />
<br /><br />
<input type="submit" name="add" value="Add" /><br />
<input type="submit" name="remove" value="Remove" /><br />
</td><br />
</tr><br />
</form><br />
</table><br />
</body><br />
</html></source><br />
<br />
<br />
<!-- end source code --></div>
Admin