Read file from a folder inside the project directory

Question

In a JSP project I am reading a file from directory. If i give the full path then i can easily read the file

BufferedReader br = new BufferedReader(new FileReader("C:\\ProjectFolderName\\files\\BB.key"));

but i don't want to write the full path instead i just want to give the folder name which contains the file, like bellow.

BufferedReader br = new BufferedReader(new FileReader("\\files\\BB.key"));

How to do this?

String currentDirectory = new File("").getAbsolutePath();
System.out.println(currentDirectory);
BufferedReader br = new BufferedReader(new FileReader(currentDirectory + "\\files\\BB.key"));

I tried the above still cant read from file

the print line gives the following output

INFO: C:\Program Files\NetBeans 7.3

Answer 1

Use

File file = request.getServletContext().getRealPath("/files/BB.key");

This translates URL paths relative (hence '/') from the web contents directory to a file system File.

For a portable web application, and knowing the file is in Windows Latin-1, explicitly state the encoding, otherwise the default OS encoding of the hoster is given.

BufferedReader br = new BufferedReader(new InputStreamReader(
        new FileInputStream(file), "Windows-1252"));

If the file is stored as resource, under /WEB-INF/classes/ you may also use

BufferedReader br = new BufferedReader(new InputStreamReader(
        getClass().getResourceAsStream("/files/BB.key"), "Windows-1252"));

In that case the file would reside under /WEB-INF/classes/files/BB.key.