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JSP Basics Beginning-level questions on JSP. More advanced coders should post to Pro JSP.
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Old November 2nd, 2008, 11:44 PM
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Default How to display pictures on JSP page?

HI all. pls help me. I already upload image into blob field Oracle. Now I want to display picture on JSP page from oracle db blob field.
1. how i select pic from blob
2. how to display pic on jsp
 how I decide this problem?

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Old November 3rd, 2008, 09:02 PM
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It doesn't matter whether the page you display the picture in is a JSP page or ordinary HTML page.

The "trick" is to simply use an HTML image control but to specify a JSP-based URL.

That is, something like:
    <img src="http://www.yoursite.com/getImageFromDB.jsp?id=778" />
There are MANY possible variations on the form of the URL. You might use URL rewrites, for example, to have a "pretty" looking url such as:
    <img src="http://www.yoursite.com/image/778" />
where in actuality, behind the scenes, that is transformed into the first URL I showed.

So then what you have to do is to write JSP code to retrieve the BLOB from the DB and send it as a binary stream to the browser. And there are many ways to do that. I think you could google for solutions a lot faster than I could write one for you. You shouldn't need more than about 20 or 30 lines of code to do this, by the way.
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