Objects in JSP and JavaBeans

[Isabella]

Hello,
Can I utilize a java class in jsp page using JavaBeans. I run the jsp page for the first time, all goes well, but the problem is if I launch a second jsp page in the same window, the method class do not work. Another note, if I close the window and I launched the jsp it works correctly. Any more help will be great. Thank you for your replies.

[cyber-noob]

You define your object in request scope (for the application until the end of the total treatment) or page scope for the sole assessment of the jsp. You can find a good information on this on the sun's official web site. So, I recommend you to visit the sun's web site for documentation.
See if this thread can help you
What are the implicit objects in JSP?

[Isabella]

Here is the code

<% @ Page import = "bd .*"%> 
<% @ Include fl = "par.jsp"%> 
<jsp:useBean id="cm" class="bd.CombinParametre" scope="session"> </ jsp: useBean> 
<% 
cm.methode (); 
%>

And here is a sample java class

package db; 
import java.sql .*; 
(public class CombinParametre 
public int x; 
public int d; 
public void method () 
( 
/ / Source code 
) 
I do not know if the class implements Serializable must 
)

[Gunner 1]

Your bean is in session scope which means that the first time it is instantiated and the second it is reused. We must realize that you can spirit will be one bean of this type for any user session. To start, are you sure your method is re-entrant? because if it works at first call and not the second could be the problem.