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From Todd Grigsby <>
Subject Re: Unique Id creation
Date Tue, 15 Dec 2009 20:01:31 GMT
jayakumar ala wrote:
> Hi All,
>  I am using struts2 in my web application.
>  Which is the best way to create unique Id for each file upload i do in my
> application...?
> Thanks
> Ala

I've always used the original filename with a time stamp, down to the 
millisecond formatted with leading zeros and without separators, 
appended to the end.  If a create fails, I wait a few milliseconds and 
regenerate the filename.  The nice part about the time stamp is that you 
have the date and time the file was uploaded in the name itself.


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