private static String readFileAsString(String filePath) throws java.io.IOException{
    byte[] buffer = new byte[(int) new File(filePath).length()];
    BufferedInputStream f = new BufferedInputStream(new FileInputStream(filePath));
    f.read(buffer);
    return new String(buffer);
}

http://snippets.dzone.com/posts/show/1335

Read a file as String

file

Java