public class UploadServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public UploadServlet() { super(); // TODO Auto-generated constructor stub } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpSession session = request.getSession(); String userID = (String)session.getAttribute("userID"); //String title = request.getParameter("title"); PrintWriter out = response.getWriter(); out.println("userID is ..."+userID); String maxfile =""; String connectionURL = "jdbc:mysql://localhost/cms_college"; Connection connection=null; try{ Class.forName("com.mysql.jdbc.Driver"); connection = DriverManager.getConnection(connectionURL, "root", ""); Statement st = connection.createStatement(); ResultSet rs = st.executeQuery("SELECT maxfile FROM settings"); while(rs.next()){ maxfile = (rs.getString("maxfile")); out.println("maximum file size allowed is ... "+maxfile); } } catch (Exception e){ } out.println("<br />Processed,userID=" +userID); // Check that we have a file upload request if ( FileUpload.isMultipartContent(request) ) { // Create a new file upload handler FileUpload upload = new FileUpload(new DefaultFileItemFactory()); try { for (Object item : upload.parseRequest(request)) { processFileItem((FileItem)item);// call method to process each item } } catch (FileUploadException e) { // Problem when parsing the request data: output an error message..... System.out.println("Error processing file item: "); e.printStackTrace(System.out); } // Generate some sample HTML response.setContentType("text/html"); //writeToDB(title); } } public static void writeToDB(String title) { try{ String connectionURL = "jdbc:mysql://localhost/cms_college"; Connection connection=null; Class.forName("com.mysql.jdbc.Driver"); connection = DriverManager.getConnection(connectionURL, "root", ""); Statement st = connection.createStatement(); st.executeUpdate ("INSERT INTO cmsarticles (title, userID) VALUES('"+title+"','"+userID+"')"); //userID cannot be resolved. } catch(Exception e){ System.out.println("Exception is ;"+e); } } public void processFileItem(FileItem item) { // Can access all sorts of useful info. using FileItem methods if (item.isFormField()) { //Map<String, String> formParameters = new LinkedHashMap<String, String>(); //String filename = item.getFieldName(); //String title = item.getString(); //System.out.println("received filename is ... " + filename ); //formParameters.put(title, filename); } else { // Is an uploaded file, so get name & store on local filesystem String uploadedFileName = new File(item.getName()).getName(); File savedFile = new File("c:/uploads/"+uploadedFileName); long sizeInBytes = item.getSize(); System.out.println("uploadedFileName is " + uploadedFileName); String title = uploadedFileName; System.out.println("size in bytes is " + sizeInBytes); writeToDB(title); try { item.write(savedFile);// write uploaded file to local storage } catch (Exception e) { // Problem while writing the file to local storage } } } }