Re: servlet access in the same time and the result "error"(urgent)

Richard Yee Wed, 12 May 2004 06:56:03 -0700

Andy,
As long as you use only method local variables instead of class variables
in your servlet (ie; java.io.PrintWriter out; in Rinaldo's post) you will
be fine. The single threaded model does not need to be used and I think it
is even deprecated in the Servlet 2.4 spec.

Regards,

Richard

At 09:54 PM 5/11/2004, you wrote:

Hi Andy,
Every client(Web brower) when makes a request to servlet , by default
the same instance of the servlet services all the client as the servlet
container spawns a new thread for every request made.
Incase if the servlet instances are going to store entity specific
information then it that case you need to implement the servlet class
from singlethreadedModel. The container will create a new instance for
every new request. I hope this helps

Please do revert back

Regards
Falguni

-----Original Message-----
From: Andy Susanto [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 11, 2004 4:36 PM
To: [EMAIL PROTECTED]
Subject: servlet access in the same time and the result "error"(urgent)

hai,

my question is why my servlet if access in the same time with two or
more
user and the result is nor showing the right result. This error happen
if
performance computer is low. How can i fix this problem ?

example:
user JAVA 1.4
win2000Server
MySQL 3.23.25
Servlet Name = test

user A access test and User B access test. Sometimes result for user A
get
a user B Result otherwise User B get a result user A.

and my code is

 public void doGet(HttpServletRequest req,HttpServletResponse res)
  throws ServletException,IOException{
   synchronized(this){
    MainProcess(req,res);
   }
  }

  public void MainProcess(HttpServletRequest req,HttpServletResponse
res)
  throws ServletException,IOException{
    //do something
  }

TIA,

andy

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Re: servlet access in the same time and the result "error"(urgent)

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