Java file read path question and answer

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File File=new file (filepath);
BufferedReader br = new BufferedReader (new FileReader (file));
Here's the filepath I assign to:/jsp/mytest/newstemplate.html
But when the program executes, it prompts
Java.io.FileNotFoundException: \jsp\mytest
Ewstemplate.html
When I wrote FilePath as an absolute path: c:\\www\\jsp\\ ... , the program can execute.

If the JSP file currently executing is xxx.jsp
Then the file name for the assignment file cannot be:.. /yyy.jsp?

If you do a news system, the user has installed, do not know the user installed in which directory. If you want to read the program
The file in a directory, only know the relative, do not know the user's absolute directory, this time how to do?
Do I have to use the absolute path with the letter?

For:
Relative path is OK, but not your JSP put the relative path, is the JSP engine to execute this JSP compiled into a servlet
The path to the root. For example, resin,file f = new File ("a.htm");
This a.htm is under the resin installation directory.