getImage() or createImage() with picture stored in database

[TheInsider]

Hi,

I have a SQL Server database that stores pictures in a table. I have an applet that must retrieve certain images based on certain conditions. For security reason I do not want the applet to have direct access to the database (i.e. connection info), but rather have an ASP page control the selection of the image something like:

<%
Response.ContentType = "image/jpeg"
Response.BinaryWrite Recordset("MyPicture")
%>

This works fine when embedding the above into an HTML page like

<img src="PicLoader.asp">

; however, Java doesn't seem to allow the loading of an Image from an ASP page using getImage(). I even tried removing the

Response.ContentType = "image/jpeg"

portion of the ASP page, so that the returned stream was 100% pure jpg image data, but that didn't work either. I also tried retrieving the ASP output stream into a byte array and then using createImage(), but haven't had any success with that approach thus far (I just get garbage painted onto the canvas). Unfortunately, I don't have my code in front of me right now or I would paste what I have, but this really shouldn't be that difficult to do... I'm just fairly new to Java.

Thanks in advance,

The Insider

 

[timw]

I can't what this has to do with Java. Unless you mean JavaScript, which is nothing to do with Java.

Tim

 

[TheInsider]

It's a Java Applet... for security reasons it gets its picture data for the Image objects from an ASP output stream, which in turn gets the pictures from a table in a SQL Server database.

 

[TheInsider]

Don't let the ASP part throw you off, it is not a conventional ASP page. It ONLY returns the file data for a jpeg image. The Applet is not on the same page as this ASP script. The Applet only calls the ASP page internally and saves its output stream to a variable.

The questions is: If I have a bunch of bytes somewhere that make up a jpeg image, how can I get them into an Image object? The most obvious way would be

Image pic = getImage(new URL("[URL unfurl="true"]http://localhost/PicLoader.asp"));[/URL]

but this doesn't work, presumably getImage requires a ".jpg" or ".gif" extension. So I tried capturing the stream from the ASP page into a byte array and then using createImage(), but I'm a little unsure as to how to do that.

Thank you for any help you can provide.

 

[sedj]

Whats the error then ? Does it give you a stack trace or exception ?

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[timw]

Sorry TheInsider, I missed the 'applet' bit. My fault, must read slower .

Lets see what error your 'getImage' line throws out, and we'll take it from there.

Tim