Hi All,
I executed the example program in Servlet Programming By Jason
Hunter(O'Reillys) book with some modification for my application. It is just
try. But it gave this error
Error. The server encountered an unexpected condition which prevented it
from fulfilling the request.
java.lang.InternalError: Can't connect to X11 window server using ':0.0' as
the value of the DISPLAY variable.
at sun.awt.motif.MToolkit.(Compiled Code)
at java.awt.Toolkit.getDefaultToolkit(Compiled Code)
at GEIPSGImageLoadServlet.service(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at newatlanta.servletexec.ServletExec.processServletRequest(Compiled
Code)
at newatlanta.servletexec.ServletExec.ProcessRequest(Compiled Code)
at newatlanta.servletexec.ServletExec.ProcessRequest(Compiled Code)
The same code is working fine in Javawebserver and WebSphere Runtime
Environment provided by VisualAge Java. It fails when i tried it out with
Servlet Exec in Netsacpe Enterprise Server3.6
If any one give me some inputs, i am really thankful to u. I think it is
the problem with environment variables.
Regards,
Sultan.
Here is the code
import java.io.*;
import java.awt.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.Properties;
import Acme.JPM.Encoders.GifEncoder;
public class GEIPSGImageLoadServlet extends HttpServlet
{
Properties defaultProps = null;
private String ImagePath1 = "";
private String ImagePath2 = "";
private String ImagePath3 = "";
private String ImagePath4 = "";
private String ImagePath5 = "";
private String ImagePath6 = "";
private String ImagePath7 = "";
private String ImagePath8 = "";
public void init(ServletConfig config) throws ServletException
{
super.init(config);
System.out.println("Inside init");
defaultProps= new Properties();
try
{
FileInputStream in = new FileInputStream(
getServletConfig().getInitParameter("CONFIG_FILE"));
defaultProps.load(in);
in.close();
ImagePath1 = (String)defaultProps.get("pattern11");
ImagePath2 = (String)defaultProps.get("slider11");
ImagePath3 = (String)defaultProps.get("pattern2");
ImagePath4 = (String)defaultProps.get("slider2");
ImagePath5 = (String)defaultProps.get("pattern1A");
ImagePath6 = (String)defaultProps.get("slider1A");
ImagePath7 = (String)defaultProps.get("pattern2A");
ImagePath8 = (String)defaultProps.get("slider2A");
System.out.flush();
}
catch (Exception e)
{
System.out.println ("SERVLET1 IS NOT UP!"+
e.toString());
e.printStackTrace();
}
}
public void service(HttpServletRequest req,HttpServletResponse res)
throws
ServletException, IOException
{
ServletOutputStream out= res.getOutputStream();
Frame frame = null;
Graphics g = null;
try
{
int count=2;
int type = Integer.parseInt(req.getParameter("type"));
int position =
Integer.parseInt(req.getParameter("position"));
System.out.println("type:" + type);
String path1="";
String path2="";
int width = 0;
int height = 0;
Image images[] = new Image[count];
if (type == 1)
{
path1 = req.getRealPath(ImagePath1);
path2 = req.getRealPath(ImagePath2);
System.out.println("path details:" + path1);
System.out.println("path details:" + path2);
}
else if (type == 2)
{
path1 = req.getRealPath(ImagePath3);
path2 = req.getRealPath(ImagePath4);
}
else if (type == 3)
{
path1 = req.getRealPath(ImagePath5);
path2 = req.getRealPath(ImagePath6);
}
else if (type == 4)
{
path1 = req.getRealPath(ImagePath7);
path2 = req.getRealPath(ImagePath8);
}
images[0] = Toolkit.getDefaultToolkit().getImage(path1);
System.out.println("after 1st image");
images[1] = Toolkit.getDefaultToolkit().getImage(path2);
System.out.println("after 2nd image");
frame = new Frame();
frame.addNotify();
frame.setBackground(Color.white);
MediaTracker mt = new MediaTracker(frame);
for (int i=0; i < count; i++)
{
mt.addImage(images[i], i);
}
try
{
mt.waitForAll();
}
catch(InterruptedException e)
{
getServletContext().log(e, "Interrupted while loading
image");
throw new ServletException(e.getMessage());
}
width = images[0].getWidth(frame);
height = images[0].getHeight(frame);
Image image = frame.createImage(width,height+5);
g = image.getGraphics();
g.drawImage(images[0], 0, 0, frame);
g.drawImage(images[1],position,0,frame);
res.setContentType("image/gif");
GifEncoder encoder = new GifEncoder(image, out);
encoder.encode();
}
finally
{
if(g != null)
g.dispose();
if(frame != null)
frame.removeNotify();
}
}
}
___________________________________________________________________________
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff SERVLET-INTEREST".
Archives: http://archives.java.sun.com/archives/servlet-interest.html
Resources: http://java.sun.com/products/servlet/external-resources.html
LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
