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HttpSession

Posted on 2001-06-07
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Last Modified: 2013-11-24
Hi all,

I have 2 servlets:

one servlet sets an attribute like so:

req.setAttribute("Password", password);


Another servlet gets this attribute from the first servlet when it has been called via an URL
the code to get the attribute is:

String Password = (String)req.getAttribute("Password");

this is then output to the screen like so:

out.println(Password);

The question is: when I set the attribute in the first servlet I get an error saying that password is
not defined, how can I get around this as I have nothing that I want to set password to??

Also, I when it is output to screen I get null wrote??

I have been told to use HttpSession for this, has anyone any idea how to use HttpSession for this??
0
Comment
Question by:macca_26
  • 3
5 Comments
 
LVL 14

Expert Comment

by:sudhakar_koundinya
ID: 6163952
Servlet 1:

HttpSession httpsession = httpservletrequest.getSession(true);
httpsession.putValue("Password",password);




Servlet 2:

HttpSession httpsession = httpservletrequest.getSession(true);
out.println(httpsession.getValue("Password"));

should work
Cheers
sudhakar
0
 
LVL 14

Expert Comment

by:sudhakar_koundinya
ID: 6163972
Servlet 2:

HttpSession httpsession = httpservletrequest.getSession(true);
if(httpsession.getValue("Password")!=null)
   out.println(httpsession.getValue("Password"));

0
 
LVL 14

Accepted Solution

by:
sudhakar_koundinya earned 25 total points
ID: 6164004
Servlet 1:

String password=null;
password=resultset.getString("password");//say
if(password==null)
   password="";
HttpSession httpsession = httpservletrequest.getSession(true);
if(httpsession.getValue("Password")==null)
   httpsession.putValue("Password",password);



Servlet 2:

HttpSession httpsession = httpservletrequest.getSession(true);
if(httpsession.getValue("Password")!=null)
  out.println(httpsession.getValue("Password"));

should work
Cheers
sudhakar
0
 

Expert Comment

by:lingababu
ID: 6164037
above comment should work.
Accept his answer
Cheers
0
 

Author Comment

by:macca_26
ID: 6164063
Thanks Sudhakar,

I have tried this and it does exactly what I want.

Regards.
0

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