How to retreive PDF from BLOB and open the PDF in Java Struts application

PDF saved in Oracle BLOB data type. How do I retrieve it and open new window to dispaly the PDF under the Struts Java applicatin.  And how to update/re-save a new PDF to that BLOB.
CHARLESCHUAsked:
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objectsCommented:
following shows you how to read the blob

http://helpdesk.objects.com.au/java/how-do-i-convert-a-blob-to-a-byte-array

you to display it you need a servlet to return the pdf similiar to how you return an image

http://helpdesk.objects.com.au/java/how-can-i-return-an-image-using-a-servlet
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CEHJCommented:
You don't want to be reading into memory any longer than necessary, so that's a poor solution
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