Win a copy of The Journey To Enterprise Agility this week in the Agile and Other Processes forum! And see the welcome thread for 20% off.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Jeanne Boyarsky
  • Liutauras Vilda
  • Campbell Ritchie
  • Tim Cooke
  • Bear Bibeault
Sheriffs:
  • Paul Clapham
  • Junilu Lacar
  • Knute Snortum
Saloon Keepers:
  • Ron McLeod
  • Ganesh Patekar
  • Tim Moores
  • Pete Letkeman
  • Stephan van Hulst
Bartenders:
  • Carey Brown
  • Tim Holloway
  • Joe Ess

Writing a log file for my servlet  RSS feed

 
Ranch Hand
Posts: 102
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I need to write a log file for my servlet. I am using a FileWriter now and it is working fine. The problem is the file path.

now i am using absolute path , the exact hardcoded location of the file. but i donot want to do this.

I want to give a relative location to the file path, that is, inside the server/webapps folder. so that even if my server location changes i need not change the log file path.
how can i get this?

regards,
Surendar
 
Sheriff
Posts: 13411
Firefox Browser Redhat VI Editor
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Personally, I use log4j which allows you to configure all of this stuff from a properties file.


As to your question:
One thing to keep in mind is that a Java webapp doesn't necessarily reside in a directory. They can also be deployed and run from a packed war archive.
The war file doesn't even need to be on the same machine.

The ServletContext.getRealPath method will find the file system path to any resource in your webapp. Using getRealPath("/") will find the root of your webapp. If, as mentioned earlier, your app hasn't been deployed as an exploded file system, get real path will return null.
For this reason, relying on getRealPath makes your webapp less portable.
 
It is sorta covered in the JavaRanch Style Guide.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!