I have a servlet running in weblogic 4.51 which returns a dynamic image to
the browser.
It uses the following classes:
com.sun.image.codec.jpeg.JPEGImageDecoder (sun classes included in jdk)
com.sun.image.codec.jpeg.JPEGImageEncoder (sun classes included in jdk)
java.awt.image.BufferedImage
java.awt.Graphics
java.awt.Image
java.awt.Canvas
java.awt.Font
java.awt.FontMetrics
java.io.OutputStream
java.io.FileInputStream
and sends the image stream back to the browser with the relevant jpg mime
type,etc
This works on an NT server running weblogic but fails to work on our Solaris
development server.
The error given is below. I do not open any frames or do anything that
really requires a display
server (e.g. X), so why the error???
The line that is causing the problem within the servlet is just doing a
simple getGraphics():
line 59: GEACTempCard
java.awt.Graphics gTemplate = biTemplate.getGraphics();
Am I missing some awt classes in my Sun JVM ??
Any help appreciated!
Jonathan
+++++++++++++++++++++++++++++++++++++++++++++++++
ERROR MESSAGE FROM WEBLOGIC LOG FILE
+++++++++++++++++++++++++++++++++++++++++++++++++
Thu Oct 12 07:07:46 EDT 2000:<E> <HTTP> 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 <Unloaded Method>
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:125)
at
java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment
.java:63)
at
java.awt.image.BufferedImage.createGraphics(BufferedImage.java:1009)
at java.awt.image.BufferedImage.getGraphics(BufferedImage.java:998)
at
com.ibm.gianteagle.servlets.GEACTempCard.doGet(GEACTempCard.java:59)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:715)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet
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