Re: SERVLET-INTEREST Digest - 24 May 2003 to 25 May 2003 (#2003-124)

You already have the "file" stored in the database so you might not want
to store it again in a temporary file.  You get into messy issues around
maintaining and cleaning up a cache of temporary files, as well as
concurrency issues if you don't use unique names for the temporary files.

A more direct way is to write the bytes of the blob directly into the
servlet response OutputStream and set the Content-Type header to
"image/jpeg". You do this with a Servlet (not with JSP). How you read
the bytes from the blob depends on which database you are using, even
with JDBC.

-- Paul Copeland, JOT Object Technologies - http://www.jotobjects.com

>
> ------------------------------
>
> Date:    Mon, 26 May 2003 11:34:37 +0530
> From:    vikramjit singh <[email protected]>
> Subject: Re: Show Bolb image data by Servlet
>
> The image when you retrieve, store it in a physical location on the server
> .jpg or whichever image format. And call it how you use in html page.
>
> -----Original Message-----
> From: A mailing list for discussion about Sun Microsystem's Java Servlet
> API Technology. [mailto:[email protected]]On Behalf Of
> Souvik Basak
> Sent: Monday, May 26, 2003 10:10 AM
> To: [email protected]
> Subject: Show Bolb image data by Servlet
>
>
> Hi,
>     How can I show A BLOB Image data, retrieved from Oracle Database
> (using ResultSet.getBlob()), on the Web page with the help of
> servlet/JSP.
> regards,
> Souvik Basak

___________________________________________________________________________
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