servlets.Photo.java Source code

Introduction

Here is the source code for servlets.Photo.java

Source

/*
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 */
package servlets;

import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
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.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

/**
 *
 * @author Adiputra Setiawan
 */
@WebServlet(name = "Photo", urlPatterns = { "/Photo" }, asyncSupported = true)
public class Photo extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");

        String action = request.getParameter("action");
        if (action != null) {
            switch (action) {
            case "upload":
                boolean isMultipart = ServletFileUpload.isMultipartContent(request);
                if (isMultipart) {
                    FileItemFactory factory = new DiskFileItemFactory();
                    ServletFileUpload upload = new ServletFileUpload(factory);
                    List items = null;
                    try {
                        items = upload.parseRequest(request);
                    } catch (FileUploadException e) {
                        e.printStackTrace();
                    }
                    Iterator itr = items.iterator();
                    while (itr.hasNext()) {
                        FileItem item = (FileItem) itr.next();
                        if (!item.isFormField() && item.getSize() > 0) {
                            try {
                                System.out.println("FieldName=" + item.getFieldName());
                                System.out.println("FileName=" + item.getName());
                                System.out.println("ContentType=" + item.getContentType());
                                System.out.println("Size in bytes=" + item.getSize());
                                File file = new File(request.getServletContext().getRealPath("/") + "Media"
                                        + File.separator + item.getName());
                                System.out.println("Absolute Path at server=" + file.getAbsolutePath());
                                item.write(file);
                            } catch (Exception ex) {
                                ex.printStackTrace();
                            }
                        }
                    }
                    request.getRequestDispatcher("upload.jsp").forward(request, response);
                } else {
                    request.getRequestDispatcher("upload.jsp").forward(request, response);
                }
                break;
            }
        } else {
            request.getRequestDispatcher("upload.jsp").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 {
        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>

}