Search for a word in files

Question

Hi all,
i need a help here..
i am doing document search in my jsp application...i have all my files inside a folder..folder contains many folders and inside many files are there..if i specify one string it should display all the files that contains that word.
for example if i search a word "welcome" if any file that contains welcome at any part of document it should specify that file along with the path and then the file should open when i click the link..pls tell me how to do that..

Answer 1

Have a recursive method that takes as a parameter a File, an ArrayList of matches so far, and the String to search for. In your servlet, call it with a blank arraylist. Then iterate through the arrayList, and instead of outputting the path on the file system, output the URL.
     private void fileSearch(File currdir, ArrayList matches, String word) throws IOException{
          File[] fileset = currdir.listFiles();
          for (int i =0; i <fileset.length; i++){
               if (fileset.isDirectory()) fileSearch(fileset[i], matches, word);
               else{
                    BufferedReader reader = new BufferedReader(new FileReader(fileset[i]));
                    boolean found=false;
                    while (reader.ready() && !found){
                         String currline = reader.readLine();
                         if (currline.indexOf(word)!=-1){
                              matches.add(fileset[i].getAbsolutePath());
                              found=true;
                    reader.close();