Mega Code Archive
Use JSTL C
<![CDATA[
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<html>
<head>
<title>Query String Example</title>
</head>
<body>Your favorite color is:
<b>
<c:out value="${param.color}" />
</b>
<br />
<br />
Choose your favorite color:
<br />
<br />
<a
href="<c:out value="${pageContext.request.requestURI}"/>?color=red">
red</a>
<br />
<a
href="<c:out value="${pageContext.request.requestURI}"/>?color=blue">
blue</a>
<br />
<a
href="<c:out value="${pageContext.request.requestURI}"/>?color=green">
green</a>
<br />
<a
href="<c:out value="${pageContext.request.requestURI}"/>?color=yellow">
yellow</a>
<br />
<a
href="<c:out value="${pageContext.request.requestURI}"/>?color=other">
other</a>
<br />
</body>
</html>
]]>