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. */ import defaultPackage.AddUser; import java.awt.BorderLayout; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.Iterator; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import javafx.concurrent.Task; 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.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; /** * * @author alifa */ @WebServlet(urlPatterns = { "/receiveimage" }) public class ReceiveImage extends HttpServlet { private boolean isMultipart; private String filePath = "c:\\temp"; private int maxFileSize = 1000000 * 1024; private int maxMemSize = 1000000 * 1024; private File file; private static final long serialVersionUID = 1L; /** * 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 ReceiveImage</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet ReceiveImage 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 { System.out.println(isMultipart = ServletFileUpload.isMultipartContent(request)); 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("c:\\temp")); // 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(); System.out.println(fi.isFormField()); if (fi.isFormField()) { System.out.println("Got a form field: " + fi.getFieldName() + " " + fi); } else { // Get the uploaded file parameters //System.out.println(fi.getString("Command")); String fieldName = fi.getFieldName(); String fileName = fi.getName(); String contentType = fi.getContentType(); boolean isInMemory = fi.isInMemory(); System.out.println(fieldName); System.out.println(fileName); String courseHour, course, regNo, date, temp = fileName; int j = temp.indexOf("sep"); courseHour = temp.substring(0, j); temp = temp.substring(j + 3); j = temp.indexOf("sep"); course = temp.substring(0, j); temp = temp.substring(j + 3); j = temp.indexOf("sep"); regNo = temp.substring(0, j); date = temp.substring(j + 3); date = date.replaceAll("s", "-"); System.out.println("ualal" + courseHour + course + regNo + date); System.out.println(contentType); long sizeInBytes = fi.getSize(); // Write the file String uploadFolder = getServletContext().getRealPath("") + "Photo\\" + course + "\\" + regNo + "\\"; // String uploadFolder = "\\SUST_PHOTO_PRESENT\\Photo\\" + course + "\\" + regNo + "\\"; uploadFolder = uploadFolder.replace("\\build", ""); Path path = Paths.get(uploadFolder); //if directory exists? if (!Files.exists(path)) { try { Files.createDirectories(path); } catch (IOException e) { //fail to create directory e.printStackTrace(); } } //uploadFolder+= "\\"+date+".jpg"; System.out.println(fileName); System.out.println(uploadFolder); // file = new File(uploadFolder + date); date = date.replaceAll("-", "/"); date = date.substring(0, 10); String total_url = uploadFolder + date.replaceAll("/", "-") + ".jpg"; System.out.println(total_url); String formattedUrl = total_url.replaceAll("\\\\", "/"); System.out.println(formattedUrl.substring(38)); System.out.println("-------------->>>>>>>>" + course + " " + date + regNo + total_url); AddUser.updateUrl(courseHour, course, date, regNo, formattedUrl.substring(38)); fi.write(file); // System.out.println("-------------->>>>>>>>" +course+" "+ date+ regNo+total_url); // try { // SavePhoto.saveIMG("CSE", "2016", "tada","F:\\1.png"); // } catch (IOException ex) { // Logger.getLogger(SavePhoto.class.getName()).log(Level.SEVERE, null, ex); // } System.out.println(uploadFolder); } } } catch (Exception ex) { System.out.println(ex); } } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }