In this blog we will know about the use request object in
jsp
Java server pages use request of the user with the help of
request object. This is an object of javax.servlet.httpServletRequest.This
object is available as the first parameter of _jspService () method present in
the servlet generated behind the jsp. All methods of httpservletRequest can be
used upon request object. The form tag needs to use name of the jsp file as the
value of its action attribute.
Example: - Using request object to determine whether a
number is even or odd.
<html>
<body bgcolor="pink">
<%
String
str=request.getParameter("t1");
%>
<form>
<h2>Enter a Number<input type="text"
name="t1"></h2>
<input type="submit"
value="submit">
</form>
<%
if(str!=null)
{
int x=Integer.parseInt(str);
if(x %2==0)
{
%>
<h1>The Number <font
color="red"><%= x %></font> is even </h1>
<%
}
else
{
%>
<h1>The Number <font
color="red"><%= x %></font> is odd </h1>
<%
}
}
%>
</body>
</html>