1. 동일한 페이지로 전송하기
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
<head>
<title>If with Body</title>
</head>
<body>
<c:if test="${pageContext.request.method=='POST'}">
<c:if test="${param.guess=='5'}">You guessed my number!
<br />
<br />
<br />
</c:if>
<c:if test="${param.guess!='5'}">You did not guess my number!
<br />
<br />
<br />
</c:if>
</c:if>
<form method="post">Guess what number I am thinking of?
<input type="text" name="guess" />
<input type="submit" value="Try!" />
<br />
</form>
</body>
</html>
2. 파라미터를 통한 자기 참조 방법
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<c:set var="totalCount" scope="session" value="100"/>
<c:set var="perPage" scope="session" value="20"/>
<c:forEach
var="boundaryStart"
begin="0"
end="${totalCount - 1}"
step="${perPage}">
<a href="?start=<c:out value="${boundaryStart}"/>">
[
<c:out value="${boundaryStart}"/>
-
<c:out value="${boundaryStart + perPage - 1}"/>
]
</a>
</c:forEach>
<c:forEach
var="current"
varStatus="status"
begin="${param.start}"
end="${param.start + perPage - 1}">
<c:if test="${status.first}">
<ul>
</c:if>
<li><c:out value="${current}"/></li>
<c:if test="${status.last}">
</ul>
</c:if>
</c:forEach>
3. JSTL의 폼 파라미터
3.1 form.jsp
<html>
<head>
</head>
<body>
<form method="POST" action="form2.jsp">
<table border="1" cellpadding="0" cellspacing="0"
style="border-collapse: collapse" bordercolor="#111111"
width="42%" id="AutoNumber1">
<tr>
<td width="100%" colspan="2" bgcolor="#0000FF">
<p align="center">
<b>
<font size="4" color="#FFFFFF">Please Login</font>
</b>
</p>
</td>
</tr>
<tr>
<td width="19%">User Name</td>
<td width="81%">
<input type="text" name="uid" size="20" />
</td>
</tr>
<tr>
<td width="19%">Password</td>
<td width="81%">
<input type="password" name="pwd" size="20" />
</td>
</tr>
<tr>
<td width="100%" colspan="2">
<p align="center">
<input type="submit" value="Submit" name="action" />
<input type="reset" value="Reset" name="B2" />
</p>
</td>
</tr>
</table>
</form>
<p align="left">
<i>Note: you may use any ID/Password, security is not
checked.</i>
</p>
</body>
</html>
3.2 form2.jsp
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
<h3>Welcome back
<c:out value="${param.uid}" />
!</h3>
</html>
4. JSTL에서 폼 파라미터와 요청 파라미터의 이용
4.1 form.jsp
<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 />
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>
4.2 listPageParameters.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/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="${currentValue}" />
</c:forEach>
</c:forEach>
</ul>
</body>
</html>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
<head>
<title>If with Body</title>
</head>
<body>
<c:if test="${pageContext.request.method=='POST'}">
<c:if test="${param.guess=='5'}">You guessed my number!
<br />
<br />
<br />
</c:if>
<c:if test="${param.guess!='5'}">You did not guess my number!
<br />
<br />
<br />
</c:if>
</c:if>
<form method="post">Guess what number I am thinking of?
<input type="text" name="guess" />
<input type="submit" value="Try!" />
<br />
</form>
</body>
</html>
2. 파라미터를 통한 자기 참조 방법
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<c:set var="totalCount" scope="session" value="100"/>
<c:set var="perPage" scope="session" value="20"/>
<c:forEach
var="boundaryStart"
begin="0"
end="${totalCount - 1}"
step="${perPage}">
<a href="?start=<c:out value="${boundaryStart}"/>">
[
<c:out value="${boundaryStart}"/>
-
<c:out value="${boundaryStart + perPage - 1}"/>
]
</a>
</c:forEach>
<c:forEach
var="current"
varStatus="status"
begin="${param.start}"
end="${param.start + perPage - 1}">
<c:if test="${status.first}">
<ul>
</c:if>
<li><c:out value="${current}"/></li>
<c:if test="${status.last}">
</ul>
</c:if>
</c:forEach>
3. JSTL의 폼 파라미터
3.1 form.jsp
<html>
<head>
</head>
<body>
<form method="POST" action="form2.jsp">
<table border="1" cellpadding="0" cellspacing="0"
style="border-collapse: collapse" bordercolor="#111111"
width="42%" id="AutoNumber1">
<tr>
<td width="100%" colspan="2" bgcolor="#0000FF">
<p align="center">
<b>
<font size="4" color="#FFFFFF">Please Login</font>
</b>
</p>
</td>
</tr>
<tr>
<td width="19%">User Name</td>
<td width="81%">
<input type="text" name="uid" size="20" />
</td>
</tr>
<tr>
<td width="19%">Password</td>
<td width="81%">
<input type="password" name="pwd" size="20" />
</td>
</tr>
<tr>
<td width="100%" colspan="2">
<p align="center">
<input type="submit" value="Submit" name="action" />
<input type="reset" value="Reset" name="B2" />
</p>
</td>
</tr>
</table>
</form>
<p align="left">
<i>Note: you may use any ID/Password, security is not
checked.</i>
</p>
</body>
</html>
3.2 form2.jsp
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
<h3>Welcome back
<c:out value="${param.uid}" />
!</h3>
</html>
4. JSTL에서 폼 파라미터와 요청 파라미터의 이용
4.1 form.jsp
<html>
<head>
<title>Set page parameters (2)</title>
</head>
<body>
This page allows you to enter information that is sent as request
parameters to another page.<br />
The next page list the different parameters with their values. <P />
<form action="listPageParameters.jsp" method="get">
<table>
<tr><td>Enter an adjective:</td>
<td><input type="text" name="adjective" /></td>
</tr>
<tr><td>Enter an adjective:</td>
<td><input type="text" name="adjective" /></td>
</tr>
<tr><td>Enter a noun:</td>
<td><input type="text" name="noun" /></td>
</tr>
<tr><td>Enter a noun:</td>
<td><input type="text" name="noun" /></td>
</tr>
</table>
<input type="submit" value="Send parameters" />
</form>
</body>
</html>
4.2 listPageParameters.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<html>
<head>
<title>List page parameters</title>
</head>
<body>
You entered the following parameters:<br />
<ul>
<c:forEach var="pageParameter" items="${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>
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