SpringMVC的处理器全局异常处理类

SpringMVC的处理器全局异常处理类

package com.huawei.utils;

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

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

@Component
public class MyExceptionHandler implements HandlerExceptionResolver {
    /*
     * @param httpServletRequest
     * @param httpServletResponse
     * @param o 在那个对象中出现异常
     * @param e 异常对象
     * @return
     */
    @Override
    public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {

        if(ex instanceof UnauthorizedException) {
            return new ModelAndView("forward:/unauthorized.jsp");
        }else {
            ModelAndView mv = new ModelAndView();
            mv.setViewName("error");
            mv.addObject("errorMsg", "对不起，我错了");
            mv.addObject("ex", ex);
            return mv;
        }
    }
}