Create dynamic image, dump on server someplace and reference in JSP?

I was thinking about creating dynamic images and referencing them on a JSP
          (creating them is ok). I'm sure this is a pretty standard thing, but I
          don't know how to do it. Any ideas? I tried doing a search on the BEA
          support site (nice changes :>) but nothing very accurate came up.
          Thanks.

Assign an ID (e.g. 1234) to the uploaded file. You should abstract the store
          so that it will work on the file system or in the database.
          The JSP will include an image ref to that ID, e.g.
          http://www.myco.com/myapp/imageservlet?id=1234
          The image servlet will retrieve and stream the image. It has to set content
          type etc. You should also verify that the current user has access to the
          requested image if security/privacy is an issue.
          Peace,
          Cameron Purdy
          Tangosol, Inc.
          http://www.tangosol.com/coherence.jsp
          Tangosol Coherence: Clustered Replicated Cache for Weblogic
          "PHenry" <[RemoveBeforeSending][email protected]> wrote in message
          news:[email protected]...
          > Howdy. I just thought of something. If the img is coming across via the
          > stream, how do you reference it in the html/jsp file? I just thought
          about
          > that now as I was getting a cup of coffee. (I need to cut back! :>)
          >
          > Thanks.
          >
          >
          >
          >
          > "Cameron Purdy" <[email protected]> wrote in message
          > news:[email protected]...
          > > If you write it to a file, you are writing it to an OutputStream, right?
          > >
          > > Instead, just write it to the OutputStream that comes from the
          HttpRequest
          > > object. For example:
          > >
          > > <img src="http://www.mysite.com/myapp/my.jsp?name=whatever">
          > >
          > > That would hit your JSP (it would be better to use a Servlet in this
          case
          > > though), and you would stream back the image.
          > >
          > > Peace,
          > >
          > > Cameron Purdy
          > > Tangosol, Inc.
          > > http://www.tangosol.com/coherence.jsp
          > > Tangosol Coherence: Clustered Replicated Cache for Weblogic
          > >
          > >
          > > "PHenry" <[RemoveBeforeSending][email protected]> wrote in message
          > > news:[email protected]...
          > > > Interesting. I'm still a bit new to this stuff. Do you have/know
          where
          > > to
          > > > find some examples?
          > >
          > >
          > >
          >
          >

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1)
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100);
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own cMyClass (not a problem to cast a null to
something else), but when I created a Image (by doing
a lot of unnessacary difficult stuff), and then tried
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ClassCastException or something like that...
How can I cast the java.awt.Image class to my class
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mean, displaying images etc. is very platform dependend not?Look for JNI (Java Native Interface). It's a way to link native (e.g. C) code with Java code.

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http://developer.java.sun.com/developer/JDCTechTips/2001/tt0821.html#tip2
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Create dynamic image, dump on server someplace and reference in JSP?

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