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; /* * 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 java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; 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 tranl */ public class UpLoadFile extends HttpServlet { private static final long serialVersionUID = 1L; private final String UPLOAD_DIRECTORY = "F:\\JavaCode\\DemoThuongMaiDienTu\\web\\Image"; protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, Exception { response.setContentType("text/html;charset=UTF-8"); boolean isMultipart = ServletFileUpload.isMultipartContent(request); // process only if its multipart content if (isMultipart) { // Create a factory for disk-based file items FileItemFactory factory = new DiskFileItemFactory(); // Create a new file upload handler ServletFileUpload upload = new ServletFileUpload(factory); // Parse the request List<FileItem> multiparts = upload.parseRequest(request); for (FileItem item : multiparts) { if (!item.isFormField()) { String name = new File(item.getName()).getName(); item.write(new File(UPLOAD_DIRECTORY + File.separator + name)); } } } RequestDispatcher rd = request.getRequestDispatcher("loadimage.jsp"); rd.forward(request, response); } // <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 { try { processRequest(request, response); } catch (Exception ex) { Logger.getLogger(UpLoadFile.class.getName()).log(Level.SEVERE, null, ex); } } /** * 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 { try { processRequest(request, response); } catch (Exception ex) { Logger.getLogger(UpLoadFile.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> }