Re: writing a file from a servlet

[Jerry Ford]

Daniel:

Great, got it, it works.  Thanks.

Jerry

Daniel wrote:

Hi Jerry,

You can use:

servletContext.getRealPath("/path_relative_to_webapp_root/");

Regards,
Daniel
On Sun, 1 Feb 2004, Jerry Ford wrote:

 

I want to write a config file from a servlet implemented in
/usr/local/webserver/tomcat/webapps/myWebapp/WEB-INF/classes/my/package/myWebapp.class,
to a myWebapp/conf directory.  The directory exists, and there are no
permissions issues---I can write the config file if I hardcode a full
path to the file.
The following works:

FileWriter fwrite;

try
{
  fwrite = new File
Writer("/usr/local/webserver/tomcat/webapps/myWebapp/conf/" + project +
".conf");
  // ...etc.
}
catch(IOException e)
{
  // ...etc.
}
But if I change the path in the new FileWriter statement to any of the
following, it does not work:
  /myWebapps/conf (relative to tomcat's servlets root)
  conf/ (relative to the docBase declared in the webapp's context)
  ../../../../conf (relative to the class file)
I get a FileNotFound...(No such file or directory) exception.

What does tomcat consider to be the relative path to the myWebapp/conf
directory?  relative to what?
BTW, this is a private, internal app that won't be deployed in a public
website, so there are no concerns about writing files to the server's
disk.  But I want to reserve the option of deploying to a Windows
machine or keeping it on the Linux box, and I don't want to be tied to a
specific directory location on either box.
Thanks.

Jerry

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