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 serwlety.dodaj; import com.mongodb.BasicDBList; import com.mongodb.BasicDBObject; import com.mongodb.DBCollection; import com.mongodb.DBObject; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.nio.file.Files; import java.util.ArrayList; import java.util.stream.Collectors; import javax.servlet.ServletException; import javax.servlet.annotation.MultipartConfig; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.Part; import org.bson.types.ObjectId; /** * * @author mat-bi */ @MultipartConfig public class DokumentServlet extends HttpServlet { /** * 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 DokumentServlet</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet DokumentServlet 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 { request.getRequestDispatcher("/WEB-INF/dodaj/dokument.jsp").forward(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 { DBCollection db = baza.FabrykaPolaczenia.getInstance().getConnection().getCollection("Osoba"); BasicDBObject obiekt = new BasicDBObject(); obiekt.append("nazwa", request.getParameter("nazwa")).append("tagi", request.getParameterValues("tagi")); ArrayList<String> pliki = new ArrayList<>(); for (Part plik : request.getParts().stream().filter(part -> "plik".equals(part.getName())) .collect(Collectors.toList())) { String nazwa = plik.getName() + Math.random(); //Files.copy(plik.getInputStream(), new File("/home/mat-bi/NetBeansProjects/MongoTAB2/web/pliki",nazwa).toPath()); Files.copy(plik.getInputStream(), new File("C:\\Users\\JG\\Desktop", nazwa).toPath()); pliki.add(nazwa); } obiekt.append("pliki", pliki); BasicDBObject findOne = (BasicDBObject) db .findOne(new BasicDBObject("_id", new ObjectId(request.getParameter("id")))); if (findOne.get("dokumenty") == null) { findOne.append("dokumenty", new BasicDBList()); } if (request.getParameterValues("dodatkowe") != null) { ArrayList<BasicDBObject> lista = new ArrayList<>(); int i = 0; for (String dodatkowe : request.getParameterValues("dodatkowe")) { lista.add(new BasicDBObject(dodatkowe, request.getParameterValues("dodatkowe_wartosc")[i++])); } obiekt.append("dodatkowe", lista); } ((BasicDBList) findOne.get("dokumenty")).add(obiekt); db.update(new BasicDBObject("_id", new ObjectId(request.getParameter("id"))), findOne); request.getRequestDispatcher("/WEB-INF/dodaj/dokument_dodany.jsp").forward(request, response); } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }