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The Java Developers Almanac 1.4Order this book from Amazon. |
e1066. Getting a Request Parameter Using JSTL in a JSP PageWhen using the JSTL's expression language (see e1065 Enabling the JSTL Expression Language in a JSP Page), the request parameters are made available in the implicit objectparam . This example
demonstrates how to include the value of a request parameter from the
query string or posted data in the generated output:
<%-- Declare the core library --%> <%@ taglib uri="/WEB-INF/tld/c.tld" prefix="c" %> <c:choose> <c:when test="${empty param.name}"> Please enter your name. </c:when> <c:otherwise> Hello <b><c:out value="${param.name}" /></b>! </c:otherwise> </c:choose>If the page was accessed with the URL: http://hostname.com/mywebapp/mypage.jsp?name=John+Smiththe resulting output would be: Hello <b>John Smith</b>!
e1065. Enabling the JSTL Expression Language in a JSP Page e1067. Saving Data Using JSTL in a JSP Page e1068. Saving and Emitting HTML Fragments Using JSTL in a JSP Page e1069. Conditionally Generating Output Using JSTL in a JSP Page © 2002 Addison-Wesley. |