src/com/yh/exception/MyExceptionHandler.java

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package com.yh.exception;

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

import org.springframework.core.Ordered;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;

public class MyExceptionHandler implements HandlerExceptionResolver {

	private int order = Ordered.HIGHEST_PRECEDENCE;
	
	/*
	 * obj:  发生异常的位置信息
	 */
	@Override
	public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response,
			Object obj,Exception exception) {
		
		if(exception instanceof LoginFailException){
			
			//继续跳转登录页面      errormsg=用户名或密码错误
			ModelAndView mv = new ModelAndView();
			
			mv.addObject("msg",exception.getMessage());
			mv.setViewName("/login");
			
			return mv;
			
		}else{
			
			String msg = exception.getMessage();
			
			//创建ModelAndView
			ModelAndView mv = new ModelAndView();
			
			mv.addObject("msg",msg);
			
			System.err.println("访问" + request.getRequestURI() + " 发生错误, 错误信息:" + exception.getMessage());
	
			mv.setViewName("/error");
			return mv;
		}
		
	}

}