Spring MVC 项目Demo

package com.letv.uts2.sample.controller; /** * User: lichao * Date: 12-1-29 * Time: 下午11:51 */ import com.letv.uts2.common.StringUtil; import com.letv.uts2.common.web.JsonResult; import com.letv.uts2.common.web.ResponseUtil; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.util.HashMap; import java.util.Map; /** * User: lichao * Date: 11-8-7 * Time: 下午4:21 */ public class ExceptionHandler extends AbstractHandlerExceptionResolver { private static final Logger log = LoggerFactory.getLogger(ExceptionHandler.class); private static Map<Class, Integer> EXCEPTION_CODE_MAP = new HashMap<Class, Integer>(); static { } private int getCode(Exception ex) { Integer code = EXCEPTION_CODE_MAP.get(ex.getClass()); return code == null ? 500 : code; } protected ModelAndView doResolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) { log.error("" + StringUtil.stringifyException(ex)); return jsonFormatException(request, response, handler, ex); } private ModelAndView jsonFormatException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) { try { ResponseUtil.sendJsonNoCache(response, JsonResult.gen(getCode(ex), ex.getMessage())); return new ModelAndView(); } catch (Exception e) { e.printStackTrace(); return null; } } private ModelAndView otherFormatException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) { return new ModelAndView("/commons/" + getCode(ex)); } }