Jeff, thanks for you respond.
That's mainly for handling high volume client access, if I understand
how servlet works. The dedicated thread can only handle 1 client
request at a time. If I can start another thread to handler the
request, immediate, the servlet is free and can handle any other client
request. Please correct me if I'm wrong. I'm very new to writing
serlet code.
Again, your input is greatly appreciated.
- Thomas -
Jeff Aldrich wrote:
>
> Thomas,
>
> The servlet is already handling your request in a dedicated thread.
> Why is it that you want to create another one. It appears that your
> thread is just handling the request--which is what the servlet's thread
> is doing. Is there something else you want to use the thread for?
>
> --jeff
>
> Thomas To wrote:
>
> > Hi,
> >
> > I'm trying the start a thread inside the servlet and encounter a
> > problem. When the start() method get executed, the client (Brower)
> > immediately receives "Document contains no data".
> >
> > Following is part of the doGet() method in the servlet:
> >
> > public void doGet (HttpServletRequest request,
> > HttpServletResponse response)
> > throws ServletException, IOException
> > {
> > // Get the user's session and shopping cart
> > HttpSession session = request.getSession(true);
> >
> > // as soon as this method is called, client receive "no data" error
> > temp.start();
> > .....
> > }
> >
> > and following is code of my simple Thread object:
> >
> > public class OhServletThread extends Thread
> > {
> > ServletRequest m_req;
> > ServletResponse m_res;
> > HttpSession m_session;
> > private PrintWriter m_out;
> >
> > // constructor
> > public servletThread(ServletRequest req,
> > ServletResponse res, HttpSession session)
> > {
> > m_req = req;
> > m_res = res;
> > }
> >
> > public void run()
> > {
> > // set content-type header before accessing the Writer
> > m_res.setContentType("text/html");
> >
> > try
> > {
> > m_out = m_res.getWriter();
> > m_out.println("This is a test");
> > }
> > catch (IOException ome)
> > {}
> >
> > m_out.close();
> > }
> > }
> >
> > Can a servlet start a Thread object at all. Any help is greatly
> > appreciated.
> >
> > - Thomas -
> >
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