Hi ,
I am also getting tha same problem. Could u tell about this to me detail.
Thanx
Bhuvana..
> ----------
> From: Ching sen, Jackson[SMTP:[EMAIL PROTECTED]]
> Reply To: A mailing list about Java Server Pages specification and
> reference
> Sent: Monday, November 27, 2000 2:15 PM
> To: [EMAIL PROTECTED]
> Subject: Re: draw image
>
> hi,
>
> thanks for your reply. but even I start the Xwindows, same problem exist.
> Could you tell me how to set DISPLAY variable in startup file. I use JSWDK
> Web Server Version 1.0.1 and the path is:
>
> http://210.177.56.141:3000/examples/servlet/HelloWorldGraphics
>
>
> On Sat, 2 Dec 2000 13:53:47 -0800, Loni & Bharat Nagwani
> <[EMAIL PROTECTED]> wrote:
>
> >You have to run X Windows on the server for this to work. Also in your
> >appserver startup file you have to set DISPLAY variable. If you need more
> >details send me an email and I will dig out the details tommorow.
> >
> >----- Original Message -----
> >From: Ching sen, Jackson <[EMAIL PROTECTED]>
> >To: <[EMAIL PROTECTED]>
> >Sent: Sunday, November 26, 2000 4:29 AM
> >Subject: draw image
> >
> >
> >> hi all,
> >>
> >> I copy this draw image servlet from a book
> >>
> >> import java.io.*;
> >> import java.awt.*;
> >> import javax.servlet.*;
> >> import javax.servlet.http.*;
> >>
> >> import Acme.JPM.Encoders.GifEncoder;
> >>
> >> public class HelloWorldGraphics extends HttpServlet {
> >>
> >> public void doGet(HttpServletRequest req, HttpServletResponse res)
> >> throws ServletException, IOException {
> >> ServletOutputStream out = res.getOutputStream(); // binary output!
> >>
> >> Frame frame = null;
> >> Graphics g = null;
> >>
> >> try {
> >> // Create an unshown frame
> >> frame = new Frame();
> >> frame.addNotify();
> >>
> >> // Get a graphics region, using the Frame
> >> Image image = frame.createImage(400, 60);
> >> g = image.getGraphics();
> >>
> >> // Draw "Hello World!" to the off screen graphics context
> >> g.setFont(new Font("Serif", Font.ITALIC, 48));
> >> g.drawString("Hello World!", 10, 50);
> >>
> >> // Encode the off screen image into a GIF and send it to the
> client
> >> res.setContentType("image/gif");
> >> GifEncoder encoder = new GifEncoder(image, out);
> >> encoder.encode();
> >> }
> >> finally {
> >> // Clean up resources
> >> if (g != null) g.dispose();
> >> if (frame != null) frame.removeNotify();
> >> }
> >> }
> >> }
> >>
> >> but I got this error message, pls tell me how to fix it.
> >>
> >> java.lang.InternalError: Can't connect to X11 window server using
> ':0.0'
> >as the value of the DISPLAY variable.
> >> at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
> >> at sun.awt.X11GraphicsEnvironment.(X11GraphicsEnvironment.java:58)
> >> at java.lang.Class.forName0(Native Method)
> >> at java.lang.Class.forName(Class.java:120)
> >> at
> >java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironm
> ent
> >.java:59)
> >> at sun.awt.motif.MToolkit.(MToolkit.java:56)
> >> at java.lang.Class.forName0(Native Method)
> >> at java.lang.Class.forName(Class.java:120)
> >> at java.awt.Toolkit$2.run(Toolkit.java:495)
> >> at java.security.AccessController.doPrivileged(Native Method)
> >> at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:488)
> >> at java.awt.Window.getToolkit(Window.java:416)
> >> at java.awt.Frame.addNotify(Frame.java:270)
> >> at HelloWorldGraphics.doGet(HelloWorldGraphics.java:20)
> >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:715)
> >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
> >> at
> com.sun.web.core.ServletWrapper.handleRequest(ServletWrapper.java:155)
> >> at com.sun.web.core.InvokerServlet.service(InvokerServlet.java:168)
> >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
> >> at
> com.sun.web.core.ServletWrapper.handleRequest(ServletWrapper.java:155)
> >> at com.sun.web.core.Context.handleRequest(Context.java:414)
> >> at
> com.sun.web.server.ConnectionHandler.run(ConnectionHandler.java:139)
> >>
> >>
> >
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> >
> >
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> >
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> Some relevant FAQs on JSP/Servlets can be found at:
>
> http://java.sun.com/products/jsp/faq.html
> http://www.esperanto.org.nz/jsp/jspfaq.html
> http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
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>
===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST DIGEST".
Some relevant FAQs on JSP/Servlets can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
