Dynamic web-based Chart-Generation

Hi,
I want to a offer my users a dynamic web-based Chart-Generation.
Actually I'm using Excel for generating charts and display the result in a static HTML-Page.
My goal is the user selects the wanted chart (eg. in a dropdown-menue) and this chart will be created immediately.
The charts are connected to a database where the data have been stored.
Is there existing a Freeware-Tool/Module I can use?
cu
Chris

Before FireFox got SVG and made such things obsolete, I spent a couple of sundays playing around with server-side image generation for prettier flow-charts and UML - see http://www.lapisblue.net/ for examples, http://tincancamera.com/examples/java/lapisblue/image-server/ for source code.
It's nothing special, you're free to use it if you want - the main image generation servlet's ImageServlet; it serves up pngs, and caches and redirects repeated requests; the other servlets have different image generator classes.
Pete

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Lots of different ways to do this, I blogged about one way (using a Pipelined function) here -
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</jsp:useBean>
Remark : please send me the reply at "[email protected]"

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Hi ALL,
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Dear Sir,
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<script language=javascript>
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<%-- oracle-jdev-comment:auto-binding-backing-bean-name:backing_mapPage--%>
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2     Error:     ‘themebasedfoi’ is null or not an object
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provide some nice link based on dynamic fetching of values from the database and showing it at runtime.
Message was edited by:
java@mani

As stated in http://forum.java.sun.com/thread.jspa?threadID=5167752 start reading the Java EE tutorial to get insights in the material.
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If file structure updates so few times per month, I think it
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