creating session using JSP 2

[jass1220]

how i can create session using jsp code ...

this not working!

session("user&quot = strUser;


thanks

 

[sedj]

In JSP, the "session" variable is a HttpSession object which is created by the servlet container that you are using (ie Tomcat or Resin etc). You cannot "create" a session object yourself in the way you are trying.

If you tell us exactly what you are trying to do, maybe we can help ...

 

[onpnt]

http://www.jsptut.com/Sessions.jsp

should help out

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[jass1220]

thanks a lot

 

[jass1220]

hi again

session.setAttribute( "theName", name );

what is the ( "theName", name ); ??

where should the value be .. and where is the session name ?

 

[onpnt]

from the tutorial shown here
<%
String name = request.getParameter( &quot;username&quot; );
session.setAttribute( &quot;theName&quot;, name );
%>


the value you want to hold in the session object is the second parameter. the actual name that you reference is the parameter shown in quotes
so if you had username as a form field and want to hold this value you would make that bit a bit mroe understandable as
if teh user enter &quot;john doe&quot;
<%
String username= request.getParameter( &quot;username&quot; );
session.setAttribute( &quot;currentUsername&quot;, username);
%>
now currentUsername holds john doe
and retrieve the value as
session.getAttribute( &quot;currentUsername&quot; )
that would output &quot;john doe&quot;

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[sedj]

As I said before, the &quot;session&quot; object is a HttpSession object provided by the servlet conatiner.

You can allocate variables to this session object which are stored on the server like so :

String myuser = "Dave";
session.setAttribute("myUserName", myUser);

out.println(session.getAttribute("myUserName");

So this allocates a String object, called &quot;myuser&quot; to a session object named &quot;myUserName&quot; - which can then be altered or used using the getAttribute() or setAttribute() methods of the HttpSession object ....

 

[jass1220]

sessions are working perfectly

now .. if am using teh session in other pages ..
i want to give the variable strUser teh value of the session ... how i can do it ?

i tried this:

String strUser = session.setAttribute( &quot;userName&quot; );

and tried this:

String strUser = session.getAttribute( &quot;userName&quot; );

but none of them working

 

[venur]

Hi,

1. session.setAttribute(String, Object); you need set the Object with some name.

Ex: session.setAttribute(&quot;userName&quot;, &quot;someName&quot;

2. session.getAttribute(&quot;&quot returns you object. you need to typecaste it to String in your case.

Ex:

String strUser = session.getAttribute(&quot;userName&quot.toString();

or

String strUser = (String)session.getAttribute(&quot;userName&quot;

Cheers,
Venu

 

[jass1220]

thanks