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 es.uma.inftel.blog.servlet; import es.uma.inftel.blog.domain.PostFacade; import es.uma.inftel.blog.domain.UsuarioFacade; import es.uma.inftel.blog.model.Usuario; import es.uma.inftel.blog.presentation.BaseView; import es.uma.inftel.blog.presentation.BaseViewFacade; import java.io.IOException; import java.io.InputStream; import javax.ejb.EJB; import javax.servlet.RequestDispatcher; 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.servlet.http.HttpSession; import javax.servlet.http.Part; import org.apache.commons.io.IOUtils; /** * * @author miguel */ @MultipartConfig @WebServlet(name = "PerfilServlet", urlPatterns = { "/perfil" }) public class PerfilServlet extends HttpServlet { @EJB private PostFacade postFacade; @EJB private UsuarioFacade usuarioFacade; /** * 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 { request.setCharacterEncoding("UTF-8"); BaseView baseView = new BaseView(); BaseViewFacade<BaseView> baseViewFacade = new BaseViewFacade<>(postFacade); baseViewFacade.initView(baseView); RequestDispatcher requestDispatcher = request.getRequestDispatcher("perfil.jsp"); String password = request.getParameter("password"); if (password == null) { request.setAttribute("perfilView", baseView); requestDispatcher.forward(request, response); } String email = request.getParameter("email"); Part filePart = request.getPart("avatar"); byte[] avatar = null; if (!filePart.getSubmittedFileName().isEmpty()) { InputStream inputStream = filePart.getInputStream(); avatar = IOUtils.toByteArray(inputStream); } HttpSession session = request.getSession(); Usuario usuario = (Usuario) session.getAttribute("usuario"); modificarUsuario(usuario, password, email, avatar); response.sendRedirect("perfil"); } private Usuario modificarUsuario(Usuario usuario, String password, String email, byte[] avatar) { if (password != null) { usuario.setPassword(password); } if (email != null) { usuario.setEmail(email); } if (avatar != null) { usuario.setAvatar(avatar); } usuarioFacade.modifyUser(usuario); return usuario; } // <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> }