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 admin.controller; import com.controller.BrndBotBaseHttpServlet; import com.intbit.AppConstants; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.Iterator; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import javax.naming.NamingException; import javax.servlet.RequestDispatcher; import javax.servlet.ServletConfig; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.servlet.*; import org.apache.commons.fileupload.disk.*; import org.apache.commons.fileupload.*; /** * * @author intbit */ public class ServletEditPersonality extends BrndBotBaseHttpServlet { String filePath; String fileName, fieldName, uploadPath, deletePath, file_name_to_delete; Brands brand; RequestDispatcher request_dispatcher; String brandname, brandid, lookid; public void init(ServletConfig config) throws ServletException { super.init(config); try { brand = new Brands(); } catch (NamingException ex) { Logger.getLogger(BrndBotBaseHttpServlet.class.getName()).log(Level.SEVERE, null, ex); } } /** * 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 */ @Override public void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { super.processRequest(request, response); response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); File file; int maxFileSize = 5000 * 1024; int maxMemSize = 5000 * 1024; try { uploadPath = AppConstants.BRAND_IMAGES_HOME; deletePath = AppConstants.BRAND_IMAGES_HOME; // Verify the content type String contentType = request.getContentType(); if ((contentType.indexOf("multipart/form-data") >= 0)) { DiskFileItemFactory factory = new DiskFileItemFactory(); // maximum size that will be stored in memory factory.setSizeThreshold(maxMemSize); // Location to save data that is larger than maxMemSize. factory.setRepository(new File(AppConstants.TMP_FOLDER)); // Create a new file upload handler ServletFileUpload upload = new ServletFileUpload(factory); // maximum file size to be uploaded. upload.setSizeMax(maxFileSize); // Parse the request to get file items. List fileItems = upload.parseRequest(request); // Process the uploaded file items Iterator i = fileItems.iterator(); out.println("<html>"); out.println("<head>"); out.println("<title>JSP File upload</title>"); out.println("</head>"); out.println("<body>"); while (i.hasNext()) { FileItem fi = (FileItem) i.next(); if (fi.isFormField()) { // Get the uploaded file parameters fieldName = fi.getFieldName(); if (fieldName.equals("brandname")) { brandname = fi.getString(); } if (fieldName.equals("brandid")) { brandid = fi.getString(); } if (fieldName.equals("look")) { lookid = fi.getString(); } file_name_to_delete = brand.getFileName(Integer.parseInt(brandid)); } else { fieldName = fi.getFieldName(); fileName = fi.getName(); File uploadDir = new File(uploadPath); if (!uploadDir.exists()) { uploadDir.mkdirs(); } // int inStr = fileName.indexOf("."); // String Str = fileName.substring(0, inStr); // // fileName = brandname + "_" + Str + ".jpeg"; fileName = brandname + "_" + fileName; boolean isInMemory = fi.isInMemory(); long sizeInBytes = fi.getSize(); String file_path = uploadPath + File.separator + fileName; String delete_path = deletePath + File.separator + file_name_to_delete; File deleteFile = new File(delete_path); deleteFile.delete(); File storeFile = new File(file_path); fi.write(storeFile); out.println("Uploaded Filename: " + filePath + "<br>"); } } brand.editBrands(Integer.parseInt(brandid), brandname, Integer.parseInt(lookid), fileName); response.sendRedirect(request.getContextPath() + "/admin/brandpersonality.jsp"); // request_dispatcher = request.getRequestDispatcher("/admin/looks.jsp"); // request_dispatcher.forward(request, response); out.println("</body>"); out.println("</html>"); } else { out.println("<html>"); out.println("<head>"); out.println("<title>Servlet upload</title>"); out.println("</head>"); out.println("<body>"); out.println("<p>No file uploaded</p>"); out.println("</body>"); out.println("</html>"); } } catch (Exception ex) { logger.log(Level.SEVERE, "", ex); } 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> }