How to draw an interactive network graph in JSP

hi all,
I want to draw a network graph in web page by reading data from database. In the graph, there are some points with lines between them. And I need some interactive features. If I put the mouse on the point, some information should be displayed. I could click the point to jump to the other pages. And I could change the layout of the network graph by dragging the point.
JFreeChart can not draw the network graph and has limited interactive feature. Could anybody give me some solution?
Thanks a lot!
fancy

u can find all what u need here:
http://jakarta.apache.org/commons/fileupload/
i think it will help u a lot

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