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/*
 * Copyright 2002-2007 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 org.springframework.web.servlet;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Interface to be implemented by objects than can resolve exceptions thrown
 * during handler mapping or execution, in the typical case to error views.
 * Implementors are typically registered as beans in the application context.
 *
 * 

Error views are analogous to the error page JSPs, but can be used with * any kind of exception including any checked exception, with potentially * fine-granular mappings for specific handlers. * * @author Juergen Hoeller * @since 22.11.2003 */ public interface HandlerExceptionResolver { /** * Try to resolve the given exception that got thrown during on handler execution, * returning a ModelAndView that represents a specific error page if appropriate. * @param request current HTTP request * @param response current HTTP response * @param handler the executed handler, or null if none chosen at the * time of the exception (for example, if multipart resolution failed) * @param ex the exception that got thrown during handler execution * @return a corresponding ModelAndView to forward to, or null for default processing */ ModelAndView resolveException( HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex); }





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