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 edu.pitt.servlets; import edu.pitt.resumecore.Address; import edu.pitt.resumecore.Media; import edu.pitt.resumecore.User; import edu.pitt.servlets.login; import edu.pitt.utilities.Security; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.ServletContext; 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.FileUploadException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; /** * * @author ankita */ public class processAddMedia extends HttpServlet { Media media; /** * 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 processAddMedia</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet processAddMedia 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 { HttpSession session = request.getSession(); String userID = (String) session.getAttribute("userID"); String error = "select correct format "; session.setAttribute("error", error); response.setContentType("text/html;charset=UTF-8"); try (PrintWriter out = response.getWriter()) { // Process only if its multipart content // Create a factory for disk-based file items File file; // We might need to play with the file sizes int maxFileSize = 50000 * 1024; int maxMemSize = 50000 * 1024; ServletContext context = this.getServletContext(); // Note that this file path refers to a virtual path // relative to this servlet. The uploads directory // is part of this project. The physical path varies // from the virtual path String filePath = context.getRealPath("/uploads") + "/"; out.println("Physical folder is located at: " + filePath + "<br />"); // Verify the content type String contentType = request.getContentType(); // This is very important - make sure that the web form that // uploads the file is actually set to enctype="multipart/form-data" // An example of upload form for this project is in index.html 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(filePath)); // Create a new file upload handler ServletFileUpload upload = new ServletFileUpload(factory); // maximum file size to be uploaded. upload.setSizeMax(maxFileSize); try { // Parse the request to get file items. List fileItems = upload.parseRequest(request); // Process the uploaded file items Iterator i = fileItems.iterator(); while (i.hasNext()) { FileItem fi = (FileItem) i.next(); if (!fi.isFormField()) { // Get the uploaded file parameters String fieldName = fi.getFieldName(); out.println("field name" + fieldName); String fileName = fi.getName(); out.println("file name" + fileName); // file name is present boolean isInMemory = fi.isInMemory(); long sizeInBytes = fi.getSize(); // out.println("file size"+ sizeInBytes); // Write the file if (fileName.lastIndexOf("\\") >= 0) { file = new File(filePath + fileName.substring(fileName.lastIndexOf("\\"))); } else { file = new File(filePath + fileName.substring(fileName.lastIndexOf("\\") + 1)); } fi.write(file); // out.println("Uploaded Filename: " + filePath + fileName + "<br />"); String savepath = filePath + fileName; // to check correct format is entered or not int dotindex = fileName.indexOf("."); if (!(fileName.substring(dotindex).matches(".ogv|.webm|.mp4|.png|.jpeg|.jpg|.gif"))) { response.sendRedirect("./pages/addMedia.jsp"); } // receives projectID from listProjects.jsp from edit href link , adding in existing project // corresponding constructor is used if (session.getAttribute("projectID") != null) { Integer projectID = (Integer) session.getAttribute("projectID"); media = new Media(projectID, fileName); } // first time when user enters media for project , this constructor is used else { media = new Media(userID, fileName); } System.out.println("Into the media constructor"); // redirected to listProject response.sendRedirect("./pages/listProject.jsp"); // media constructor // response.redirect(listprojects.jsp); processRequest(request, response); } } } catch (FileUploadException ex) { Logger.getLogger(processAddMedia.class.getName()).log(Level.SEVERE, null, ex); } catch (Exception ex) { Logger.getLogger(processAddMedia.class.getName()).log(Level.SEVERE, null, ex); } } } } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> } // Media media = new Media(userID,fileName); /* if((int)session.getAttribute("projectID")!=) { media= new Media(projectID,fileName); } */ // second time for edit mode /* if(projectID>0) { media= new Media(projectID,fileName); } */ // int projectID=(int) session.getAttribute("projectID"); // user credentials 2 // User user = (User) getServletContext().getAttribute ("authenticatedUser"); // add upload code // Media media = new Media(userID,fileName);