Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.xinta.eazycode.components.shiro.web.controller; import org.apache.shiro.SecurityUtils; import org.apache.shiro.authc.AuthenticationException; import org.apache.shiro.authc.UsernamePasswordToken; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.xinta.eazycode.common.web.BaseController; import org.xinta.eazycode.components.shiro.model.User; import org.xinta.eazycode.components.shiro.web.validator.LoginValidator; import org.xinta.eazycode.components.shiro.web.vo.LoginVO; /** * Web MVC controller that handles shiro-related web requests, such as login and logout. */ @Controller public class SecurityController { private LoginValidator loginValidator = new LoginValidator(); @RequestMapping(value = "/login", method = RequestMethod.GET) public String showLoginForm(Model model, @ModelAttribute LoginVO command) { return "login"; } @RequestMapping(value = "/login", method = RequestMethod.POST) public String login(Model model, @ModelAttribute LoginVO command, BindingResult errors) { loginValidator.validate(command, errors); if (errors.hasErrors()) { return showLoginForm(model, command); } UsernamePasswordToken token = new UsernamePasswordToken(command.getLoginName(), command.getPassword(), command.isRememberMe()); try { SecurityUtils.getSubject().login(token); } catch (AuthenticationException e) { errors.reject("error.login.generic", "Invalid username or password. Please try again."); } if (errors.hasErrors()) { return showLoginForm(model, command); } else { return "redirect:/home.do"; } } @RequestMapping("/logout") public String logout() { SecurityUtils.getSubject().logout(); return "redirect:/"; } }