load files on tomcat

[David Smith <dns4 (at) cornell.edu>]

This is per the spec which explicitly states that the method 
getRealPath() will return null if the webapp is executed from an 
unexpanded .war file.  I believe it's even in the docs for the servlet 
api.  If however your effort is in just reading the resource, there are 
other methods which work regardless of being in a .war file or not -- 
getResource( path ) and getResourceAsStream( path ).


--David

Mark Miller wrote:
> > ,
> > you could use ServletContext.getRealPath( ).  That will return the
> > absolute path to the file, but only if the webapp isn't packed up as 
> > .war.
> >
> > --David
> Why is this the case? Doesn't Tomcat extract to war to a webapp/warname
> folder when it first accesses it?
>
> - Mark


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