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 Controller; import Model.Product; import Model.Products; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Hashtable; import java.util.Iterator; import java.util.List; import javax.servlet.RequestDispatcher; 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.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; /** * * @author phuoc */ public class ControllerProducts 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(); try { String action = request.getParameter("action"); if (action.equals("FIND")) { String productname = request.getParameter("txtname"); Products pr = new Products(); List<Product> list = new ArrayList<Product>(); list = pr.list(productname); request.setAttribute("listSP", list); request.setAttribute("proname", productname); RequestDispatcher rd = request.getRequestDispatcher("product.jsp"); rd.forward(request, response); } else if (action.equals("Delete")) { String code = request.getParameter("txtcode"); Products sp = new Products(); sp.Delete(code); RequestDispatcher rd = request.getRequestDispatcher("ControllerProducts?action=Find&txtname="); rd.forward(request, response); } else if (action.equals("Edit")) { String code = request.getParameter("txtcode"); String name = request.getParameter("txtname"); String price = request.getParameter("txtprice"); String image = request.getParameter("txtimage"); Product sp = new Product(code, name, price, image); request.setAttribute("SP", sp); RequestDispatcher rd = request.getRequestDispatcher("editProduct.jsp"); rd.forward(request, response); } else if (action.equals("Search")) { String productname = request.getParameter("txtname"); Products pr = new Products(); List<Product> list = new ArrayList<Product>(); list = pr.list(productname); request.setAttribute("listSP", list); request.setAttribute("proname", productname); RequestDispatcher rd = request.getRequestDispatcher("index.jsp"); rd.forward(request, response); } else if (action.equals("Searchcus")) { String productname = request.getParameter("txtname"); Products pr = new Products(); List<Product> list = new ArrayList<Product>(); list = pr.list(productname); request.setAttribute("listSP", list); request.setAttribute("proname", productname); RequestDispatcher rd = request.getRequestDispatcher("index_Cus1.jsp"); rd.forward(request, response); } } catch (Exception e) { e.printStackTrace(); } } // <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 { this.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 { boolean isMultipart = ServletFileUpload.isMultipartContent(request); if (!isMultipart) { } else { FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); List items = null; try { items = upload.parseRequest(request); } catch (Exception 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()); } else { try { String itemName = item.getName(); fileName = itemName.substring(itemName.lastIndexOf("\\") + 1); System.out.println("path" + fileName); String RealPath = getServletContext().getRealPath("/") + "upload\\" + fileName; System.out.println("Rpath" + RealPath); File savedFile = new File(RealPath); item.write(savedFile); //System.out.println("upload\\"+fileName); //insert Product String code = (String) params.get("txtcode"); String name = (String) params.get("txtname"); String price = (String) params.get("txtprice"); Products sp = new Products(); sp.InsertProduct(code, name, price, "upload\\" + fileName); RequestDispatcher rd = request.getRequestDispatcher("product.jsp"); rd.forward(request, response); } catch (Exception e) { e.printStackTrace(); } } } } //this.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> }