How can i get a file object on servlet

Question

i want to send a file object to be sent on a servlet from html input file tag. This is the HTML code
<form action="uploadImage.jsp" method="post"><br><br>
            <table width="400px" align="center" border=0 style="background-color:ffeeff;">
                <tr>
                    <td align="center" colspan=2 >
                        Image Details</td>
                </tr>
                <tr>
                    <td align="center" colspan=2> </td>
                </tr>
                <tr>
                    <td>Image Link: </td>
                    <td>
                        <input type="file" name="filename" id="file">                     
                    <td>
                </tr>
                <tr>
                    <td></td>
                    <td><input type="submit" name="Submit" value="Submit"></td>
                </tr>
                <tr>
                    <td colspan="2"> </td>
                </tr>
            </table>
        </form>On servlet i have tried this code.
                                String file = request.getParameter("filename");
                                    if (file != null) {
                                        out.println(file);
                                        File f = new File(file);
                                        out.println(f.isFile());
                                        out.println(f.length());
                                    }this code is showing following output.
       DSC01347.JPG false 0 so is there any way of transferring the the file on servlet without using common file upload?
Please help me

Answer 1

i have worked out this following solution. It is working here.
* To change this template, choose Tools | Templates
* and open the template in the editor.
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Part;
* @author Chinmay
public class NewServlet extends HttpServlet {
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        Part p = request.getPart("file");
        out.println(p.getContentType());
        out.println(p.getName());
        out.println(p.getSize());
        InputStream in = (InputStream) p.getInputStream();
        byte[] b = new byte[in.available()];
        in.read(b,0,b.length);
        Connection connection = null;
        PreparedStatement stmt = null;
        try {
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        Properties properties = new Properties();
        connection = DriverManager.getConnection("jdbc:odbc:sn", properties);
        stmt = connection.prepareStatement("insert into Photos(username,photo) values(?,?)");       
        stmt.setString(1, "a");
        stmt.setBytes(2, b);
        int rows = stmt.executeUpdate();
        if (rows > 0) {
        out.println("INSERTED");
        } catch (ClassNotFoundException ex) {
        out.println(ex);
        } catch (SQLException ex) {
        out.println(ex);
        } finally {
        in.close();
        try {
        connection.close();
        stmt.close();
        } catch (SQLException ex) {
        ex.printStackTrace();
        out.close();
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
     * Returns a short description of the servlet.
     * @return a String containing servlet description
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}this code is storing the image in database.
But not the main problem is this code is working on my PC. But when i executed this code at my institute's PC it shows me error that cannot find symbol for this line.
import javax.servlet.http.Part;In my institute we have Netbeans 5.5.1 and tomcat server or sun app server.
On my PC I have Netbeans 6.9.1 and Glassfish server.
So what can be the problem?
Is it a problem of server or just servlet's jar file???