Embedded java drawString problem

Question

who can help to oracle !!!!
i want create image dynamically:
drawString mehod:
command line calls works both linux and XP
embedded java calls : working on XP . but not working Linux (drawings ok . drawString doesnt effect)
M.Y.
thanks.

Answer 1

dear,
thanks...
complete code below
on XP , 10gR2 db evertything is ok. 326x160 picture and "Sample Text." seen on browser.
on Oracle Unbrakeble Linux , 11g db 326x160 picture seen on browser but "Sample Text." absent on picture !!!!!
did you understand?
can you help me?
is this bug?
or programming mistake?
or configurtion mistake?
what is problem.????????????
when write a code standalone
working properly both XP and Linux.
Thanks.
create or replace and compile java source named java1 as
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class MyGraph
public static byte[] vcanvas (int width ,int height ) throws IOException
BufferedImage bimage = new BufferedImage(width,height, BufferedImage.TYPE_INT_RGB);
Graphics g = bimage.createGraphics();
g.setColor(Color.white);
g.fillRect(0, 0, width - 1, height - 1);
g.setColor(Color.red);
g.drawRect(0,0,width-1,height-1);
g.setColor(Color.black);
g.drawRect(2,2,width-3,height-3);
g.drawString("Sample Text.",10,height/2);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
JPEGImageEncoder jpeg = JPEGCodec.createJPEGEncoder(baos);
jpeg.encode(bimage);
baos.flush();
baos.close();
return baos.toByteArray();
} // MyGraph
create or replace function javaimage(w number,h number) return varchar2
as LANGUAGE JAVA name 'MyGraph.vcanvas(int, int) return byte[]';
create or replace procedure imgXYZ is
vData varchar2(32767);
begin
owa_util.mime_header('image/jpeg', FALSE );
owa_util.http_header_close;
vData:=javaimage(326,160);
htp.prn(vData);
end;
http://server:port/schema/imgXYZ
Edited by: user3968053 on Jan 5, 2011 3:38 PM
Edited by: user3968053 on Jan 5, 2011 3:38 PM