Question concerning read file

Hello All,
I wrote a program to read a file. When I compile and run the file it runs fine. I take this same code and try to read the file using a JSP page and now my error is file cannot be found, can some one tell be what's wrong here. I'm just calling the class from the JSP page nothing more, and I'm getting File not found although the path was specified correctly and the program worked as a stand alone using Main before.
Please any help?
KT

I want this program to at least read the file from my JSP page
Here is part of the source code for the Java file
1)
DataInputStream inFile=
             new DataInputStream(
                new BufferedInputStream(
               new FileInputStream("Data_452SY2.txt")));
          DataOutputStream outFile = new DataOutputStream(
                           new FileOutputStream("test2.xls"));
          String readDetail_topLayer;2)
Here is the JSP page (not doing anything yet) just accepting the java file
<%@page import="dev.*" %>
<%@page session="true" language="java" import="java.io.*" import="java.util.*" %>
<jsp:useBean id="wagerhist" scope="page" class="dev.RoundDetail2" />
3) the rest is just HTML code
the path for the inoput file ("Data_452SY2.txt") is in the same directory as the class file, but I'm getting file not found exception
any help?

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