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Thread: Display Servlet Output into JSP Page

  1. #1
    Member DanBrown's Avatar
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    Default Display Servlet Output into JSP Page

    Hello Friends,

    I want to show the output return by the below given servlet into jsp page .
     
    import java.io.*;
    import javax.servlet.*;
    import javax.servlet.http.*;
     
    public class GetAllProgrammesServlet extends HttpServlet
    {
    	public void service(HttpServletRequest request, HttpServletResponse response)
    		throws IOException, ServletException
    	{
                PrintWriter pw = response.getWriter();
                Transactions tr = new Transactions();
     
                try
                {
                    String programmes = tr.getProgrammes();
     
                    if(programmes.length() > 0)
                    {
    [B]                    pw.println(programmes);
    [/B]                    return;
                    }
                    else
                    {
                        pw.println("NULL");
                    }
                }
                catch(Exception ex)
                {
                    pw.println("exception");
                    ex.printStackTrace();
                }
    	}
    }


    where
    programmes="P0001,MCA,0$P0002,MBA,1";

    in jsp page i want to split it into different pieces and want to show them in tabular form
    for that i want to contain the output return by this servlet into a variable.

    Please put some light..Its urgent.

    i had tried various ways.i am able to show the content into jsp by using include scriplet , but unable to store into variable.
    Thanks and Regards
    Dan Brown

    Common Java Mistakes


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    Administrator copeg's Avatar
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    Default Re: Display Servlet Output into JSP Page

    Why try to include the servlet, as the code is quite simple and can just placed into the jsp page. Serlets and jsp pages are to output data to clients...if you want cross talk then perhaps remove the commonalities into another object which can be used by both...in other words if you have more complex things going on than just this, create a POJO that accomplishes what you need which can be instantiated and used by multiple servelts/jsp pages

  3. #3
    Member DanBrown's Avatar
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    Default Re: Display Servlet Output into JSP Page

    Transactions tr = new Transactions()

    this class is in web-inf/classes folder

    Transaction is an helper java class.

    And my Jsp page is outside the web-inf where we generally put our html pages.
    When i m trying to created object of Transcation class in jsp page,then it shows transaction class not available.

    i feel it is possible to use transaction class there because , we can directly call servlets putted in web-inf/classes
    folder.
    Am i right or wrong ?
    Please put some light..
    thank you all..
    Thanks and Regards
    Dan Brown

    Common Java Mistakes

  4. #4
    Super Moderator Json's Avatar
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    Default Re: Display Servlet Output into JSP Page

    Does the JSP page have an import statement in it to import the Transactions class?

    Also, best practice is to avoid using scriptlet inside the JSP, it's not nice, it clutters it and you should override the doGet and doPost methods rather than the service method of HttpServlet.

    In order to forward a user from your servlet to a JSP you can use the requestDispatcher found on the request object.

    // Json

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