Good points. Thanks Craig.
-Velmurugan Periasamy.
AEGIS.Net
http://www.aegis.net
-----Original Message-----
From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 24, 2001 6:27 PM
To: '[EMAIL PROTECTED]'
Subject: RE: Won't read existing file
On Mon, 24 Sep 2001, Vel Periasamy wrote:
> Date: Mon, 24 Sep 2001 17:24:50 -0400
> From: Vel Periasamy <[EMAIL PROTECTED]>
> Reply-To: [EMAIL PROTECTED]
> To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
> Subject: RE: Won't read existing file
>
> Try putting the file into TOMCAT_HOME\bin directory.
>
This is *not* a portable solution, because it depends on the assumption
that the current working directory is set here. That's not true for all
servers (or even all versions of Tomcat).
> BTW, you can create a separate folder to hold the data files and the exact
> location of this folder can be specified in a properties file. Your
servlet
> should read the properties file to get the exact location of the data
file.
> This will give you more flexibility if you move the application around.
>
For read-only access to things in a portable manner, you should use
ServletContext.getResource() or ServletContext.getResourceAsStream().
This works, for example, even when your application is run directly from a
WAR file and there is no such thing as a "real" file for that resource.
For read-write access, the best thing to do is pass the path to a
configuration directory as a servlet init parameter (or a servlet context
init parameter, if it is global), and use that to construct absolute paths
to the required files.
> Hope this helps.
> -Velmurugan Periasamy.
> AEGIS.Net
> http://www.aegis.net
>
Craig McClanahan
>
>
> -----Original Message-----
> From: Dennis Jay Dole [mailto:[EMAIL PROTECTED]]
> Sent: Monday, September 24, 2001 5:24 PM
> To: [EMAIL PROTECTED]
> Subject: Won't read existing file
>
>
> Hi I have a problem...
> I have a servlet which reads opens a serialized file
> "File f = new File("Database.scat");"
> then I do a lot of things when "f.exists()",
> but since I upgraded my web server to Tomcat (from Sun's old java
> web-server)
> it f.exists() returns false even though I know the file is placed in
> the
> right
> directory Tomcat's root directory, and named correctly.
>
> Does anyone know why this Tomcat isn't allowing my servlet to open this
> file? Does it have somthing to do with permissions, or security
settings?...
> If so, how do I go about giving permission to my servlet to see the
database
> file?
>
> Please help!!
>
> Dennis Jay Dole
>
> [EMAIL PROTECTED]
>
