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 io.muic.ooc.webapp.servlet; import io.muic.ooc.webapp.service.SecurityService; import io.muic.ooc.webapp.service.User; import io.muic.ooc.webapp.service.UserService; import org.apache.commons.lang.StringUtils; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.util.List; public class DeleteServlet extends HttpServlet { private UserService userService; public void setUserManager(UserService userService) { this.userService = userService; } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String username = request.getParameter("username"); boolean confirm = StringUtils.equals(request.getParameter("confirm"), "true"); User user = userService.getUser(username); String currentUser = (String) request.getSession().getAttribute("username"); if (user != null && !StringUtils.equals(currentUser, username)) { if (confirm) { userService.removeUser(user); response.sendRedirect("/"); } else { request.setAttribute("user", username); RequestDispatcher rd = request.getRequestDispatcher("WEB-INF/remove.jsp"); rd.include(request, response); } } else { response.sendRedirect("/"); } } }