Re: open a file outside JSP

From:
Lew <lew@lewscanon.com>
Newsgroups:
comp.lang.java.programmer
Date:
Mon, 21 Jan 2008 11:15:26 -0500
Message-ID:
<lLSdnVCDQ5SCWAnanZ2dnUVZ_gWdnZ2d@comcast.com>
nashaccount wrote:

Thanks for your reply Lew.

My file is located at: c:\reports. When in production (UNIX), my file
will be located at: /reports/


How are you guaranteeing this?

The regular File (and FileXxxStream, File{Reader,Writer}) classes work with
full paths. The methods I mentioned are for finding resources relative to
your application's location.

Relative locations are *much* easier to manage and guarantee, and are much
more portable. (Likely portability is not a requirement for you, reading
between the lines. But it is generally a bad idea to make non-portable Web apps.)

So as you've mentioned before I can't hardcore though.


Assuming you mean "hardcode", why not? I mean, I know I said you shouldn't,
but I never said you can't.

That said, go the deployment descriptor or properties file route - it provides
portability while still allowing full-path references.

Regarding the links that you've just sent to me, isn't ClassLoader
only useful to find out classes?


No. Didn't you read the Javadocs that I linked for you? If not, do that now.

For your needs, java.io.FileXxx classes may be better. Check out their
Javadocs and see if they suit. The combination of a configuration file
specifying, say, "C:/reports/myreport.log" and code using FileWriter is pretty
powerful.

--
Lew

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