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Thread: Problem in Servlet redirect

  1. #1
    Junior Member
    Join Date
    Aug 2011
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    Default Problem in Servlet redirect

    String username=request.getParameter("username");
    ResultSet rs=st.executeQuery("select * from regis where username='"+username+"'");
    if(rs.next() ){


    if username is existing the "register.jsp" page will redirect
    but "register.jsp" page didnt hold anything which i have entered.
    i want hold the values which i entered except username
    so give me solution..

  2. #2
    Super Moderator Sean4u's Avatar
    Join Date
    Jul 2011
    Tavistock, UK
    Thanked 103 Times in 93 Posts

    Default Re: Problem in Servlet redirect

    One way to pass data from one page to another page you redirect to is to use URL parameters. See the URL for this page at javaprogrammingforums.com - it has a '?' followed by a p=39838 - that's the 'query part' of the URL. You read it in your code fragment with request.getParameter(...) - if you want another page to have access to the same data, you have to add that parameter to the URL in your redirect.

  3. #3
    Join Date
    Aug 2011
    My Mood
    Thanked 4 Times in 4 Posts

    Default Re: Problem in Servlet redirect

    - Use a RequestDispatcher object to wrap the destination JSP.
    - Set parameters for the request.
    - Forward processing to the destination page using RequestDispatcher.

    Here is the sample code:

    RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("register.jsp");
    request.setAttribute("username", "YourName");
    dispatcher.forward(request, response);

    immutable objects
    Last edited by ha.minh.nam; December 4th, 2011 at 07:31 PM.

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