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 hotel.web.util; import hotel.web.entities.Users; import hotel.web.facade.UserFacade; import javax.inject.Inject; import java.io.IOException; import java.util.Date; 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.springframework.dao.DataAccessException; import org.springframework.jdbc.datasource.lookup.DataSourceLookupFailureException; import org.springframework.security.crypto.codec.Base64; import org.springframework.web.context.WebApplicationContext; import org.springframework.web.context.support.WebApplicationContextUtils; /** * * @author Mike */ public class RegistrationVerifier extends HttpServlet { private static final long serialVersionUID = 1L; // Note that we are using @Inject vs. @EJB. Inject is better. But // you must have bean.xml installed in your web app under the // "WEB-INF" directory. @Inject UserFacade userService; @Inject EmailVerificationSender emailService; /** * 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"); String errMsg = ""; String destination = "/registrationVerified.jsp"; try { String id = request.getParameter("id"); byte[] decoded = Base64.decode(id.getBytes()); String username = new String(decoded); Users user = userService.find(username); if (user == null) { throw new RuntimeException("Sorry, that user is not in our system"); } user.setEnabled(true); userService.edit(user); } catch (Exception dae) { errMsg = "VERIFICATION ERROR: " + dae.getLocalizedMessage(); request.setAttribute("errMsg", errMsg); destination = "/registrationError.jsp"; } RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(destination); dispatcher.forward(request, response); } // end of processRequest method ... NOT end of the servlet!! @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } }