JSTL: generate URL, add parameters to url and display the parameters
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
<head>
<title>the c:url action (1)</title>
</head>
<body>
This page takes 3 values that you specify, and forwards them to another JSP.
That JSP will create a URL to another page, that then extracts the
parameters and displays them.
<p />
<form action="createURL.jsp" method="post">
<table>
<tr><td>Enter name:</td>
<td><input type="text" name="name" /></td></tr>
<tr><td>Enter age:</td>
<td><input type="text" name="age" /></td></tr>
<tr><td>Enter gender:</td >
<td><input type="text" name="gender" /></td></tr>
</table>
<input type="submit" value="Submit details" />
</form>
</body>
</html>
//createURL.jsp
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<c:url value="displayValues.jsp" var="displayURL">
<c:param name="nameParam" value="${param.name}" />
<c:param name="ageParam" value="${param.age}" />
<c:param name="genderParam" value="${param.gender}" />
</c:url>
<html>
<head>
<title>the c:url action (2)</title>
</head>
<body>
This page receives the values you specified, and creates a URL that contains
them.
<p />
The generated URL is <c:out value="${displayURL}" />. <p/>
Click <a href='<c:out value="${displayURL}" />'>here</a> to view the it.
</body>
</html>
//displayValues.jsp
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
<head>
<title>the c:url action (3)</title>
</head>
<body>
<h3>List of query string parameters:</h3>
<ul>
<c:forEach items="${param}" var="currentParam">
<li><c:out value="${currentParam.key}" />
= <c:out value="${currentParam.value}" /></li>
</c:forEach>
</ul>
</body>
</html>
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