Java Mailing List Archive

http://www.junlu.com/

Home » Home (12/2007) » Tomcat Users »

Re: FW: String added to session in servlet not available in jsp

rudidoku

2003-10-09

Replies:

No worries. I added the following to doPost in my servlet:

    HttpSession session = request.getSession(true);
    String username = request.getParameter("username");
    if ( username == null ) username = "noParameter";
    if ( "".equals( username ) ) username = "noParameter";
    System.out.println(username);
    session.setAttribute("usr", username);

I added the following to my JSP:

String username = ( request.getParameter("usr"));
out.println("username >>" + username);
String usr = (String)session.getAttribute("usr");
out.println("usr >>" + usr);


I should added that my JSP is a frameset with 2 frames. That could be the
problem!!!

Rudi

> I really sorry the last message I sent it by mistake, is difficult to me
> write code in outlook ;) well
>
> Try this
>
>  HttpSession session = request.getSession(true);
>  String username = request.getParameter("username")
>  if ( username == null ) username = "noParameter";
>  if ( "".equals( username ) ) username = "noParameter";
>  session.setAttribute("usr", username);
>
> I'm thinking that your request parameter is empty.. Try this and tell us
>
> Sincerely
> Lic. Computer Science
> Erlis Vidal Santos
>
>> -----Original Message-----
>> From: DA-Erlis Vidal
>> Sent: Thursday, October 09, 2003 11:02 AM
>> To: 'Tomcat Users List'
>> Subject: RE: String added to session in servlet not available in jsp
>>
>>
>> And how you get the session in your JSP??
>> Try this
>>
>> HttpSession session = request.getSession(true);
>> String username = ( request.getParameter("username") != null
>> ? request.getParameter("username") : "" ) ;
>> session.setAttribute("usr", username);
>>
>> Sincerely
>> Lic. Computer Science
>> Erlis Vidal Santos
>>
>>
>> > -----Original Message-----
>> > From: rudidoku@(protected)]
>> > Sent: Thursday, October 09, 2003 10:54 AM
>> > To: Tomcat Users List
>> > Subject: RE: String added to session in servlet not available in jsp
>> >
>> >
>> > > Can you please show how are you creating the session object???
>> > No worries, here it is:
>> >      HttpSession session = request.getSession(true);
>> >      session.setAttribute("usr",
>> request.getParameter("username"));
>> >
>> >
>> > > Sincerely
>> > > Lic. Computer Science
>> > > Erlis Vidal Santos
>> > >
>> > > -----Original Message-----
>> > > From: rudidoku@(protected)]
>> > > Sent: Thursday, October 09, 2003 10:44 AM
>> > > To: tomcat-user@(protected)
>> > > Subject: String added to session in servlet not available in jsp
>> > >
>> > > Hi,
>> > >
>> > > I created a session object and added a string (username) to it.
>> > > Systemout.println shows the username from the request. My
>> > page is then
>> > > forwarded to another as follows:
>> > >
>> > >      RequestDispatcher disp = ctx.getRequestDispatcher(target);
>> > >      disp.forward(request, response);
>> > >
>> > > On this jsp page, I have teh following code:
>> > >
>> > >  String usr = (String)session.getAttribute("usr");
>> > >  out.println("User: " + usr + "!");
>> > >  out.println("Session Id: " + session.getId());
>> > >
>> > > The page displays the session Id but not the usr.
>> > >
>> > > I'm quite baffled at why this is the case.
>> > >
>> > > looking in google for similar problems, but any help would be much
>> > > appreciated!
>> > >
>> > > Rudi
>> > >
>> > >
>> >
>> ---------------------------------------------------------------------
>> > > To unsubscribe, e-mail: tomcat-use
> r-unsubscribe@(protected)
>> > > For additional commands, e-mail:
>> tomcat-user-help@(protected)
>> > >
>> > >
>> > >
>> >
>> ---------------------------------------------------------------------
>> > > To unsubscribe, e-mail: tomcat-user-unsubscribe@(protected)
>> > > For additional commands, e-mail:
>> tomcat-user-help@(protected)
>> > >
>> > >
>> > >
>> >
>> >
>> >
>> ---------------------------------------------------------------------
>> > To unsubscribe, e-mail: tomcat-user-unsubscribe@(protected)
>> > For additional commands, e-mail: tomcat-user-help@(protected)
>> >
>> >
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tomcat-user-unsubscribe@(protected)
> For additional commands, e-mail: tomcat-user-help@(protected)
>
>




---------------------------------------------------------------------
To unsubscribe, e-mail: tomcat-user-unsubscribe@(protected)
For additional commands, e-mail: tomcat-user-help@(protected)


©2008 junlu.com - Jax Systems, LLC, U.S.A.