How to open File on server Using JCIFS or any other method

[Kr. Pallav]

I am having a problem , My server is in Linux and I have to open the file (Excel File) on clicking a button , Since Linux Server has password , I am unable to open without authenticating on to server ,I am able to open file on Windows Server which is not having the password.
So I used JCIFS and now I can list down all the Files in the directory I can read them also ,but can't execute on my client machine. Tough I can use simple java to open any file on network on the machine which is not password protected or say has access . I can't allow server to have full access to client machine , I want client to use authentication and then execute file from server .

I am using this code to authenticate and read can you help me to execute it from Server after checking credential from Client.

 public static void openFileUsingSambaAndIOStream(String hostname,
            String path, String fileName) throws UnknownHostException, IOException {
        try {

            String url = "smb://" + hostname + "/" + path + "/";
            NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(null, "loginID", "password");
            SmbFile dir = new SmbFile(url, auth);
            SmbFile fileToGet=new SmbFile(url+fileName,auth);
            SmbFileInputStream in = new SmbFileInputStream(fileToGet);
            
            byte[] b = new byte[8192];
            int n;
            while ((n = in.read(b)) > 0) {
                System.out.write(b, 0, n);
               
            }

            for (SmbFile f : dir.listFiles()) {               

                System.out.println(f.getName());
            }
        } catch (SmbException ex) {
            ex.printStackTrace();
        } catch (MalformedURLException ex) {
            ex.printStackTrace();
        }
    }   

[Kr. Pallav]

I got a way to do it ,sorry for delay I am putting down the code I used to do it , also I would apologize as I feel I created post under wrong heading , I was developing a desktop application not a servlet one .
Code I used is

   try {
                    // TODO add your handling code here:
                    FileUtilityService.openFileUsingSambaAndIOStream("192.168.1.7", "xyz", "abc.xls");
                } catch (UnknownHostException ex) {
                    Logger.getLogger(SkillTestView.class.getName()).log(Level.SEVERE, null, ex);
                } catch (IOException ex) {
                    Logger.getLogger(SkillTestView.class.getName()).log(Level.SEVERE, null, ex);
                }

here I am considering 192.168.1.7 as server and xyz as desired folder abc.xls as file to be opened.
at class FileUtilityService the method openFileUsingSambaAndIOStream is as following

 
public static void openFileUsingSambaAndIOStream(String hostname,
            String path, String fileName) throws UnknownHostException, IOException {
        try {
            connectToServer();
            File file = new File("\\\\"+hostname+"\\"+ path+ "\\"+fileName);
            FileOperation.openFile(file);
            //dissconectFromServer();
        } catch (SmbException ex) {
            ex.printStackTrace();
        } catch (MalformedURLException ex) {
            ex.printStackTrace();
        } finally {
            //dissconectFromServer();
        }
    }
   

connecting server and disconnection code is

public static void connectToServer() throws IOException {
        String commandConnect = "cmd /c net use \\\\" + ipAddress
                + "\\ipc$ /user:" + userName + " " + password;

        Runtime.getRuntime().exec(commandConnect);

    }

    public static void dissconectFromServer() throws IOException {
        String commandDisconnect = "cmd /c net use \\\\" + ipAddress
                + "\\ipc$ /d";
        Runtime.getRuntime().exec(commandDisconnect);

    }
}

inside FileOperation Class required methods are like

public static void openFile(File file) throws IOException {
        FileUtilityService.connectToServer();
        Runtime r = Runtime.getRuntime();
        String cmd = getExecutable(file);
        if (cmd == null) {
            cmd = file.getPath();
        } else {
            cmd = cmd + " \"" + file.getPath() + "\"";
        }
        try {
            Process p = r.exec(cmd);
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    }

    public static String getExecutable(File file) {
        try {
            ShellFolder sf = ShellFolder.getShellFolder(file);
            String s = sf.getExecutableType();
            System.out.println(sf.getAbsolutePath());

            if (s != null) {
                return s;
            }
        } catch (FileNotFoundException fnfe) {
            fnfe.printStackTrace();
        }
        String ext = getFileExtention(file);
        if (ext == null || ext.equals("txt")) {
            return "notepad";
        } else if (ext.equals("doc") || ext.equals(".rtf")) {
            return "winword";
        } else if (ext.equals(".ppt") || ext.equals(".pps")) {
            return "powerpnt";
        }
        // Add more else if for handle more files like pdf
        // return value is the path of the executable
        // ex. return "C:\\program files\\notepad.exe" ;
        // ex. return "notepad" ; // if notepad.exe in the path variable.
        return null;
    }

    public static String getFileExtention(File file) {
        String name = file.getName();
        int id = name.lastIndexOf('.');
        if (id == -1 || id == name.length() - 1) {
            return null;
        }
        return name.substring(id + 1);
    }