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 AdminPackage; import HibernateEntity.Categories; import HibernateDao.HProductDao; import HibernateEntity.Product; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.Iterator; import java.util.List; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; 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.FileUploadException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; /** * * @author Ehab */ @WebServlet(name = "AdminAddProductController", urlPatterns = { "/AdminAddProductController" }) public class AdminAddProductController 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"); try (PrintWriter out = response.getWriter()) { /* TODO output your page here. You may use following sample code. */ out.println("<!DOCTYPE html>"); out.println("<html>"); out.println("<head>"); out.println("<title>Servlet AdminAddProductController</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet AdminAddProductController at " + request.getContextPath() + "</h1>"); out.println("</body>"); out.println("</html>"); } } // <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 { HProductDao pDao = new HProductDao(); Product product = new Product(); Categories c = new Categories(); try { DiskFileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); List<FileItem> items = upload.parseRequest(request); Iterator<FileItem> iter = items.iterator(); while (iter.hasNext()) { FileItem item = iter.next(); if (item.isFormField()) { String name = item.getFieldName(); String value = item.getString(); switch (name) { case "productName": product.setProductName(value); break; case "productDesc": product.setProductDescription(value); break; case "productPrice": product.setProductPrice(Float.parseFloat(value)); break; case "productQuantityAvailable": product.setProductQuntityavailable(Integer.parseInt(value)); break; case "productQuantitySold": product.setProductQuntitysold(Integer.parseInt(value)); break; case "productCategory": c.setIdcategory(Integer.parseInt(value)); product.setCategories(c); break; } } else { if (!item.isFormField()) { item.write(new File("C:/images/" + item.getName())); product.setProductImg(item.getName()); } } } } catch (FileUploadException ex) { ex.printStackTrace(); } catch (Exception ex) { ex.printStackTrace(); } pDao.insert(product); /* PrintWriter out = response.getWriter(); out.write("Done");*/ response.sendRedirect("/WebProjectServletJsp/AdminProductController"); } @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }