There has to be a way to find the current directory in JSP, right?

Question

I've read a number of posts, with limited results.
Here's my problem. I have 3 databases set up, and I'd like to use a different one depending on which directory I am in. (ie Stage, Production, Dev). So I am reading the database name from a parameter file.
I am simply trying to read a text file from the same directory as my jsp file. For example, my jsp file is in /home/username/public_html/prod
When I try System.getProperty("user.dir"), it returns /home/username/public_html/.
Is there a way for the jsp page to let me know it is in the prod subdirectory? Verses another subdirectory? Everything I've tried puts me in either the /home/username directory or the home/username/public_html directory. I can't get to any of the subdirectories!!! Please help!

Answer 1

This is what I'm working with right now, seems to work. Anyone know a better way:
ServletContext context = getServletContext();
String servletpath_str = request.getServletPath();
StringTokenizer st = new StringTokenizer(servletpath_str,"/");
int nooftokens_int = st.countTokens();
nooftokens_int--;
String virtualpath_str = "";
for(int i=0; i<nooftokens_int; i++) {
if(i == 0) { virtualpath_str = "/" + st.nextToken(); }
else { virtualpath_str = virtualpath_str + "/" + st.nextToken(); }
String currentDir = context.getRealPath(virtualpath_str);
String filename = currentDir + "/file.txt";