web.UploadFile.java Source code

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/*
 * 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 web;

import common.BasicAuth;
import ejbs.FileBean;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import javax.ejb.EJB;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.ws.rs.core.HttpHeaders;
import jdk.nashorn.internal.ir.RuntimeNode;
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;
import org.apache.commons.io.FilenameUtils;

/**
 *
 * @author root
 */
@WebServlet(name = "UploadFile", urlPatterns = { "/UploadFile" })
@MultipartConfig(fileSizeThreshold = 1024 * 1024 * 10, // 10 MB 
        maxFileSize = 1024 * 1024 * 50, // 50 MB
        maxRequestSize = 1024 * 1024 * 100 // 100 MB
)
public class UploadFile extends HttpServlet {

    @EJB
    private FileBean fileBean;

    String filePath = "";

    /**
     * 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");
        PrintWriter out = response.getWriter();

        filePath = request.getServletContext().getRealPath("/WEB-INF/uploads");

        try {

            FileItemFactory factory = new DiskFileItemFactory();
            ServletFileUpload upload = new ServletFileUpload(factory);
            List items = null;

            try {
                items = upload.parseRequest(request);

            } catch (Exception e) {
                e.printStackTrace();
            }

            Iterator itr = items.iterator();
            while (itr.hasNext()) {
                FileItem item = (FileItem) itr.next();

                String itemName = item.getName();
                if ((itemName == null) || itemName.equals("")) {
                    continue;
                }
                String filename = FilenameUtils.getName(itemName);
                File f = checkExist(filename);
                item.write(f);

                fileBean.create(filename, f.getPath());
            }

            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Documento Submetido</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<span>Documento Enviado!</span></br></br>");
            out.println("<a href='" + request.getHeader("referer") + "'>Return</a>");
            out.println("</body>");
            out.println("</html>");

        } catch (Exception e) {

        }
    }

    // <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>

    private File checkExist(String filename) {
        File f = new File(filePath + "/" + filename);

        if (f.exists()) {
            StringBuffer sb = new StringBuffer(filename);
            sb.insert(sb.lastIndexOf("."), "-" + new Date().getTime());
            f = new File(filePath + "/" + sb.toString());
        }
        return f;
    }

}