Posted on: June 12, 2010 at 12:00 AM
The 'session' Attribute of JSP page Directive
This section, illustrate about 'session' attribute of page directive with help of a example. It specifies if the generated servlet can access the session or not. This directive attribute has Boolean data type. If the vale of "session" sets to "True" , then the session persist to the next page , if sets to "False" , then you can't use the session object or <jsp:useBean> element with scope="session" in JSP page. The default value of session is "True" .
EXAMPLE
Following 3 JSP pages are included in this example :
- inputname.jsp
- session.jsp
- sessionresult.jsp
In this Example, User input their name, and redirected to "session.jsp" page , where he will have to click "Continue" hyperlink , which again redirected him to "sessionresult.jsp", which display his inputted name.
inputname.jsp
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< HTML>< HEAD><TITLE>INPUT YOUR NAME</TITLE></HEAD>< BODY>< FORM METHOD=POST ACTION="session.jsp">What's your name? <INPUT TYPE=TEXT NAME=username SIZE=20>< P><INPUT TYPE=SUBMIT value="Submit" value="Submit"></ FORM></ BODY></ HTML>
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session.jsp
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<%@ page language="java" %><% String name = request.getParameter( "username" );session.setAttribute( "theName", name );%> < HTML>< HEAD><TITLE>CLICK TO CONTINUE</TITLE></HEAD>< BODY>< A HREF="sessionresult.jsp">Click to Continue</A>< BR><A HREF="inputname.jsp">Click Here to go back</A></ BODY></ HTML>
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sessionresult.jsp
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<%@ page language="java" session="true" %>< HTML>< HEAD><TITLE>DISPALYING YOUR NAME</TITLE></HEAD>< BODY>< font color=red size="10">Hello, <%= session.getAttribute( "theName" ) %></font></ BODY></ HTML> |
OUTPUT
After submitting :-
After clicking "Click to Continue"
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