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JSP tutorial part 13: Example Include action Tag dynamically

Another Example Include action Tag dynamically
Header2.jsp
<%@ page language=”java” contentType=”text/html; charset=ISO-8859-1” pageEncoding=”ISO-8859-1”%>
<!DOCTYPE html PUBLIC “-/W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd”>
<html>
<head>
<meeta http-equiv=”Content-Type” content=”text/html; charset=ISO-8859-1”>
<title>Header 2 Page</title>
</head>
<body>
<table width=100%” border=’1’>
<tr>
<td><%=request.getParameter(“variable 1”) %></td>
<td><%=request.getParameter(“variable 2”) %></td>
<td><%=request.getParameter(“variable 3”) %></td>
<td><%=request.getParameter(“variable 4”) %></td>
</tr>
</table>
</body>
</html>
When we use param tags, it is dynamic forward with having values.Static forward is a simple forward is a simple forward without having param tags.

dynamicAction.jsp
<html>
<head>
<title>dynamic include  Action Tag JSp</title>
</head>
<body>
<jsp:include page=”header2.jsp”>
<jsp:param name=”variable1” value=”Home”>
<jsp:param name=”variable2” value=”Product”>
<jsp:param name=”variable3” value=”Service”>
<jsp:param name=”variable4” value=”Login”>


</body>
</html>
Forward Action tags
The jsp:forward tag forwards the request to another resource. The resource can be dynamic or static. Syntax
<jsp:forward page=”URL”/> <jsp:forward page=”URL” >
<jsp:param name=”paramName1” value=”paramValue1”>
<jsp:param name=”paramName2” value=”paramValue2”>



 Note, the browser is not notified when the request is forwarded to another JSP.
Indeed the browser still displays the original request URL.
One factor that you need to keep in mind when using this tag is its interaction with output buffering.
When the processing of a page encounters a tag all output generated so far will be cleared.
Forward Action Tag Example
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Forwarded JSP</title>
</head>
<body>
<%
String name= request.getParameter("userName");
%>
<%
if(name != null)
{
%>
<%= name %>
<%} %>

</body>
</html>

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