Reading a file in the same directory as the JSP files

Question

Hi,
Okay so I have my JSP files in the directory $Catalina/webapps/webservices, I also have a text fire in the same directory called users.txt
All I want to do is open the users.txt from the JSP program and read from it. But JSP can't seem to find the users.txt.
Code I have tried include,
File users = new File("users.txt");
File users = new File("http://localhost:8080/webservcies/users.txt"); Also File users = new File(new URI ("http://localhost:8080/webservcies/users.txt"));
File users = new File("webservices/users.txt");
I guess part of the problem is that I don't know what the JSP working directory is. I assumed it was $Cataline/work/standalone/localhost/webservices
but even if I use,
File users = new File("../../../../webapps/webservices/users.txt");
It doesn't work. Does anyone know how I can read the file? Any help in this matter would be appreciated.

Answer 1

From within a JSP you have a reference to a PageContext called pageContext. This has a method getServletContext(). From the ServletContext you can find the real path the servlet lives in. So...
File basePath = new File(pageContext.getServletContext().getRealPath("/"));Now basePath contains your path $Catalina/webapps/webservices. Then it's just a matter of working relative to that, e.g.:
File usersFile = new File(basePath, "users.txt");