Java tutorial
/* * Copyright 2014-2015 the original author or authors. * * Licensed 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 net.thewaffleshop.nimbus.web; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.thewaffleshop.nimbus.service.AccountService; import net.thewaffleshop.nimbus.service.ReportableException; import net.thewaffleshop.nimbus.service.ReportableFieldException; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.security.authentication.InternalAuthenticationServiceException; import org.springframework.security.core.AuthenticationException; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.servlet.ModelAndView; /** * * @author rhollencamp */ @Controller public class LoginController { private final Log log = LogFactory.getLog(LoginController.class); @Autowired private AccountService accountService; @RequestMapping(value = "/", method = RequestMethod.GET) public ModelAndView login() { return new TemplateModelAndView("login"); } @RequestMapping(value = "/authenticationSuccess", method = RequestMethod.POST) @ResponseBody public Object authenticationSuccess() { ExtAjaxResponse ret = new ExtAjaxResponse(true); ret.setData("/dashboard"); return ret; } @RequestMapping(value = "/authenticationFailure", method = RequestMethod.POST) @ResponseBody public Object authenticationFailure(HttpServletRequest request, HttpServletResponse response) { AuthenticationException ae = (AuthenticationException) request.getAttribute("authenticationException"); ExtAjaxResponse ret = new ExtAjaxResponse(false); if (!(ae instanceof InternalAuthenticationServiceException)) { ret.setMsg(ae.getLocalizedMessage()); } return ret; } @ResponseBody @RequestMapping(value = "/register", method = RequestMethod.POST) public Object register(@RequestParam("userName") String userName, @RequestParam("password") String password) { ExtAjaxResponse response = new ExtAjaxResponse(); try { accountService.createAccount(userName, password); response.setSuccess(true); } catch (ReportableFieldException e) { response.setSuccess(false); response.setMsg("Please correct all field errors"); response.addError(e.getField(), e.getMessage()); } catch (ReportableException e) { response.setSuccess(false); response.setMsg(e.getMessage()); } catch (Exception e) { response.setSuccess(false); log.error("Unexpected exception registering user", e); } return response; } }