SpringBoot全局异常的捕获设置

1、新建立一个捕获异常的实体类

如：LeeExceptionHandler

 package com.leecx.exception;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
 import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.servlet.ModelAndView;
 
 @ControllerAdvice
 public class LeeExceptionHandler {
 
     public static final String DEFAULT_ERROR_VIEW = "error";
 
     @ExceptionHandler(value = Exception.class)
     public Object errorHandler(HttpServletRequest reqest, HttpServletResponse response, Exception e) throws Exception {
 
         e.printStackTrace();
 
         if (isAjax(reqest)) {
             return response;
         } else {
             ModelAndView mav = new ModelAndView();
             mav.addObject("exception", e);
             mav.addObject("url", reqest.getRequestURL());
             mav.setViewName(DEFAULT_ERROR_VIEW);
             return mav;
         }
     }
 
     public static boolean isAjax(HttpServletRequest httpRequest){
         return  (httpRequest.getHeader("X-Requested-With") != null  && "XMLHttpRequest".equals( httpRequest.getHeader("X-Requested-With").toString()) ) ;
     }
 
 }

在类上面加入注解：@ControllerAdvice

在处理方法上面加入注解@ExceptionHandler(value = Exception.class)

然后设置相应的业务处理。跳转到 特需的处理错误的友好业务界面。