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 Emporium.Servlet; import Emporium.Controle.ContrPreVendaImporta; import Emporium.Controle.ContrVpne; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; 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 javax.servlet.http.HttpSession; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileItemFactory; import org.apache.commons.fileupload.FileUpload; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; /** * * @author Fernando */ public class ServImportaVpne 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 { HttpSession sessao = request.getSession(); String nomeBD = (String) sessao.getAttribute("nomeBD"); boolean isMultiPart = FileUpload.isMultipartContent(request); int idCliente = 0, idDepartamento = 0; if (nomeBD != null) { if (isMultiPart) { try { FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); upload.setSizeMax(1024 * 1024 * 2); List items = upload.parseRequest(request); Iterator iter = items.iterator(); ArrayList<FileItem> listaArq = new ArrayList<>(); while (iter.hasNext()) { FileItem item = (FileItem) iter.next(); if (item.isFormField()) { if (item.getFieldName().equals("idCliente")) { idCliente = Integer.parseInt(item.getString()); } if (item.getFieldName().equals("idDepartamento")) { idDepartamento = Integer.parseInt(item.getString()); } } if (!item.isFormField()) { if (item.getName().length() > 0) { listaArq.add(item); } } } if (listaArq.isEmpty()) { response.sendRedirect("Cliente/Servicos/vpne.jsp?msg=Escolha um arquivo para importacao !"); } else if (listaArq.size() > 200) { response.sendRedirect( "Cliente/Servicos/vpne.jsp?msg=Importacao maxima de 200 arquivos de cada vez!"); } else { String condicao = ContrVpne.importaPedidoVpne(listaArq, idCliente, idDepartamento, nomeBD); if (condicao.startsWith("ERRO")) { response.sendRedirect("Cliente/Servicos/vpne.jsp?msg=" + condicao); } else { response.sendRedirect("Cliente/Servicos/vpne.jsp?msg=" + condicao); } } } catch (FileUploadException ex) { response.sendRedirect("Cliente/Servicos/vpne.jsp?msg=Falha na importacao!\n" + ex); } catch (Exception ex) { response.sendRedirect("Cliente/Servicos/vpne.jsp?msg=Falha na importacao!\n" + ex); } } else { response.sendRedirect("Cliente/Servicos/vpne.jsp?msg=is not a multipart form"); } } else { response.sendRedirect("Cliente/Servicos/vpne.jsp?msg=Sua sessao expirou!"); } } // <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> }