Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package hd.controller; import hd.DAO.IdeaBookDAO; import hd.DAO.IdeaBookPhotoDAO; import hd.DAO.ProductDAO; import hd.entity.IdeaBookPhoto; import hd.entity.ProductPhoto; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.Hashtable; import java.util.Iterator; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileItemFactory; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; /** * * @author cuk3t */ public class AddImageToProductServlet 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 { request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { boolean isMultipart = ServletFileUpload.isMultipartContent(request); if (!isMultipart) { //to do } else { FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); List items = null; try { items = upload.parseRequest(request); } catch (FileUploadException e) { e.printStackTrace(); } Iterator iter = items.iterator(); Hashtable params = new Hashtable(); String fileName = null; while (iter.hasNext()) { FileItem item = (FileItem) iter.next(); if (item.isFormField()) { params.put(item.getFieldName(), item.getString("UTF-8")); } else if (!item.isFormField()) { try { long time = System.currentTimeMillis(); String itemName = item.getName(); fileName = time + itemName.substring(itemName.lastIndexOf("\\") + 1); String RealPath = getServletContext().getRealPath("/") + "images\\" + fileName; File savedFile = new File(RealPath); item.write(savedFile); } catch (Exception e) { e.printStackTrace(); } } } String productID = (String) params.get("txtProductId"); System.out.println(productID); String tilte = (String) params.get("newGalleryName"); String description = (String) params.get("GalleryDescription"); String url = "images/" + fileName; ProductDAO productDao = new ProductDAO(); ProductPhoto productPhoto = productDao.insertProductPhoto(tilte, description, url, productID); response.sendRedirect("MyProductDetailServlet?action=showDetail&txtProductID=" + productID); } } catch (Exception e) { e.printStackTrace(); } finally { 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 */ @Override 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 */ @Override 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 */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }