Re: OutputStream Already in USE ..!!!!
Thanks Benoit ,
But since i am generating the graph image dynamically and the output of the
ACME encoded Gif
is directly to the client browser window, i will not be certainly knowing
the size.
So there is no way i can guess the size.
It will always be a blind solution.
And also one more query..
How to avoid the Exception error ("..IllegalStateException..OutputStream is
already been used..") in the Tomcat window.
Please reply soon.
Thanks for the Time.
Regards..
[ Benoit this time Michael wont be annoyed..Right Michael ;-) ]
L G Goundalkar
Intertec Communications Pvt Ltd
INDIA
- Original Message -
From: "Benot Jacquemont" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, April 06, 2001 4:14 PM
Subject: RE: OutputStream Already in USE ..
Usually, you don't set the Content-Length because that's generated pages,
and if you set a Content-Length higher than the real size of the generated
gif, I don't know how IE or Netscape will react... But you can try it. I
think you just have to set the Content-Length the same way you set the
Content-Type.
Hope that'll help.
Benot
Ps: Please, try to send your mail in plain text format, otherwise, you
annoy
Michael ;-)
-Message d'origine-
De : Lakshmeenrayana [mailto:[EMAIL PROTECTED]]
Envoy : vendredi 6 avril 2001 21:26
: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Objet : Re: OutputStream Already in USE ..
Thanks Benoit and Michael
It works in Netscape.
But one more strange problem has arrived.
If the Size of the graph ( image ) is less..approximately less than 5k or
so...
The same problem persists..(ASCII Characters output).
So how to set the content length..? since i don't know the content length
of
the graph image generated by the GIF encoder.
Please help again.
Thanks for the time.
Regards..
L G Goundalkar
Intertec Communications Pvt Ltd
INDIA
- Original Message -
From: Benot Jacquemont
To: [EMAIL PROTECTED]
Sent: Friday, April 06, 2001 2:18 PM
Subject: RE: OutputStream Already in USE ..
I don't know why you get a OutputStream already in use, but the reason why
it works with IE and not with Netscape may be because you do not set
properly the Content-type of your image. Indeed, IE seems to be a little
bit
cleverer than Netscape because it interprets the real content of a file
before displaying it instead of only looking at the Content-type header
property. So you have to be more explicit with Netscape.
Benot
I am using Tomcat and trying to write a Gif file to client browser window
using JSP.
I use ACME - GifEncoder to convert the picture to GIF.
The Encoder needs OutputStream type object as one of the parameter in its
constructor.
I am using ServletOutputStream object for this, which i got through
response.getOutputStream().
But the tomcat gives Error as "OutputStream already been used."
But the GIF image is Displayed properly in IE 5.0.
It gives ASCII charactes in Netscape.
Why is this so.
Please help.
Thanks for the time.
Regards.
L G Goundalkar
Intertec Communications Pvt Ltd
INDIA
RE: OutputStream Already in USE ..!!!!
I don't know why you get a OutputStream already in use, butthereason whyit works with IE and not with Netscape may be because you do not setproperly the Content-type ofyourimage. Indeed, IE seems to be a little bitcleverer than Netscape because it interprets the real content of a file before displaying itinstead ofonly looking at the Content-type header property. So you have to be more explicit with Netscape. Benoît I am using Tomcat and trying to write a Gif file to client browser window using JSP. I use ACME - GifEncoder to convert the picture to GIF. The Encoder needs OutputStream type object as one of the parameter in its constructor. Iam using ServletOutputStream object for this, which i got through response.getOutputStream(). But the tomcat gives Error as "OutputStream already been used." But the GIF image is Displayed properly in IE 5.0. It gives ASCII charactes in Netscape. Why is this so. Please help. Thanks for the time. Regards. L G GoundalkarIntertec Communications Pvt LtdINDIA
RE: OutputStream Already in USE ..!!!!
I don't know why you get a OutputStream already in use, but the reason why it works with IE and not with Netscape may be because you do not set properly the Content-type of your image. Indeed, IE seems to be a little bit cleverer than Netscape because it interprets the real content of a file before displaying it instead of only looking at the Content-type header property. So you have to be more explicit with Netscape. Benot I am using Tomcat and trying to write a Gif file to client browser window using JSP. I use ACME - GifEncoder to convert the picture to GIF. The Encoder needs OutputStream type object as one of the parameter in its constructor. I am using ServletOutputStream object for this, which i got through response.getOutputStream(). But the tomcat gives Error as "OutputStream already been used." But the GIF image is Displayed properly in IE 5.0. It gives ASCII charactes in Netscape. Why is this so. -- The OutputStream already in use is because the automatically generated code in a jsp class file gets the output stream as a JSPWriter therefore when getOutputStream() is called it thinks there is already an 'external lock' of this resource object and doesn't think it can use it. BTW, please post to the list in plain text. This has been stated over and over and is also listed on the website as one of the mailing list guidelines. More people will be willing to answer your questions if you post in plain text. --- Michael Wentzel Software Developer Software As We Think - http://www.aswethink.com
Re: OutputStream Already in USE ..!!!!
Thanks Benoit and Michael It works in Netscape. But one more strange problem has arrived. If the Size of the graph ( image ) is less..approximately less than 5k or so... The same problem persists..(ASCII Characters output). So how to set the content length..? since i don't know the content length of the graph image generated by the GIF encoder. Please help again. Thanks for the time. Regards.. L G GoundalkarIntertec Communications Pvt LtdINDIA - Original Message - From: Benoît Jacquemont To: [EMAIL PROTECTED] Sent: Friday, April 06, 2001 2:18 PM Subject: RE: OutputStream Already in USE .. I don't know why you get a OutputStream already in use, butthereason whyit works with IE and not with Netscape may be because you do not setproperly the Content-type ofyourimage. Indeed, IE seems to be a little bitcleverer than Netscape because it interprets the real content of a file before displaying itinstead ofonly looking at the Content-type header property. So you have to be more explicit with Netscape. Benoît I am using Tomcat and trying to write a Gif file to client browser window using JSP. I use ACME - GifEncoder to convert the picture to GIF. The Encoder needs OutputStream type object as one of the parameter in its constructor. Iam using ServletOutputStream object for this, which i got through response.getOutputStream(). But the tomcat gives Error as "OutputStream already been used." But the GIF image is Displayed properly in IE 5.0. It gives ASCII charactes in Netscape. Why is this so. Please help. Thanks for the time. Regards. L G GoundalkarIntertec Communications Pvt LtdINDIA
RE: OutputStream Already in USE ..!!!!
Usually, you don't set the Content-Length because that's generated pages, and if you set a Content-Length higher than the real size of the generated gif, I don't know how IE or Netscape will react... But you can try it. I think you just have to set the Content-Length the same way you set the Content-Type. Hope that'll help. Benot Ps: Please, try to send your mail in plain text format, otherwise, you annoy Michael ;-) -Message d'origine- De : Lakshmeenrayana [mailto:[EMAIL PROTECTED]] Envoy : vendredi 6 avril 2001 21:26 : [EMAIL PROTECTED]; [EMAIL PROTECTED] Objet : Re: OutputStream Already in USE .. Thanks Benoit and Michael It works in Netscape. But one more strange problem has arrived. If the Size of the graph ( image ) is less..approximately less than 5k or so... The same problem persists..(ASCII Characters output). So how to set the content length..? since i don't know the content length of the graph image generated by the GIF encoder. Please help again. Thanks for the time. Regards.. L G Goundalkar Intertec Communications Pvt Ltd INDIA - Original Message - From: Benot Jacquemont To: [EMAIL PROTECTED] Sent: Friday, April 06, 2001 2:18 PM Subject: RE: OutputStream Already in USE .. I don't know why you get a OutputStream already in use, but the reason why it works with IE and not with Netscape may be because you do not set properly the Content-type of your image. Indeed, IE seems to be a little bit cleverer than Netscape because it interprets the real content of a file before displaying it instead of only looking at the Content-type header property. So you have to be more explicit with Netscape. Benot I am using Tomcat and trying to write a Gif file to client browser window using JSP. I use ACME - GifEncoder to convert the picture to GIF. The Encoder needs OutputStream type object as one of the parameter in its constructor. I am using ServletOutputStream object for this, which i got through response.getOutputStream(). But the tomcat gives Error as "OutputStream already been used." But the GIF image is Displayed properly in IE 5.0. It gives ASCII charactes in Netscape. Why is this so. Please help. Thanks for the time. Regards. L G Goundalkar Intertec Communications Pvt Ltd INDIA
