Java tutorial
/* * Copyright 2016-2017 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 code.tianmao.h5.controller; import code.tianmao.h5.sysconfig.exception.ExceptionController; import org.apache.commons.lang3.StringUtils; import org.springframework.http.HttpStatus; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.view.json.MappingJackson2JsonView; import javax.servlet.http.HttpServletRequest; import java.util.LinkedHashMap; import java.util.Map; /** * <p></p> * <p> * <p>??</p> * <p> * <p></p> * * @author wiiyaya */ @ControllerAdvice @Controller public class BackendExceptionController extends ExceptionController { private static final MappingJackson2JsonView DEFAULT_JSON_VIEW = new MappingJackson2JsonView(); protected ModelAndView prepareExceptionInfo(HttpServletRequest request, HttpStatus httpStatus, String errorCode, String errorMessage) { Map<String, Object> models = new LinkedHashMap<>(); models.put("errorCode", errorCode); models.put("errorMessage", errorMessage); ModelAndView modelAndView = new ModelAndView(); if (noNeedWrapper(request)) { modelAndView.setView(DEFAULT_JSON_VIEW); modelAndView.addAllObjects(models); return modelAndView; } else { modelAndView.setViewName("error"); modelAndView.addAllObjects(models); return modelAndView; } } private boolean noNeedWrapper(HttpServletRequest request) { String xmlHttpRequest = request.getHeader("X-Requested-With"); String noWrapperParameter = StringUtils.defaultString(request.getParameter("noSiteMeshWapper")); return "XMLHttpRequest".equalsIgnoreCase(xmlHttpRequest) || noWrapperParameter.equalsIgnoreCase("true") || noWrapperParameter.equalsIgnoreCase("yes") || noWrapperParameter.equals("1"); } }