SpringMVC 异常处理 返回异常code及前端AJAX解析

后端：

统一异常处理器

@ControllerAdvice
public class DefaultExceptionHandler {

    @ExceptionHandler(value = Exception.class)
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    @ResponseBody
    public ErrorResponse errorResponse(Exception exception) {
        return new ErrorResponse(exception.getMessage());
    }

    /**
     * 没有权限 异常
     * 

     * 后续根据不同的需求定制即可
     */
    @ExceptionHandler({NullPointerException.class})
    @ResponseStatus(HttpStatus.UNAUTHORIZED)
    public ModelAndView processUnauthenticatedException(NativeWebRequest request, Exception e) {
        ModelAndView mv = new ModelAndView();
        mv.addObject("exception", e);
        mv.setViewName("error/unauthorized");
        return mv;
    }

    public class ErrorResponse {
        private String message;

        public ErrorResponse(String message) {
            this.message = message;
        }

        public String getMessage() {
            return message;
        }
    }
}

Controller：

    @ResponseBody
    @RequestMapping(method = RequestMethod.GET, value = "status",produces = {"application/json"})
    public Test statusTest(Test t) throws Exception {
        //System.out.println(t);
        int a= 0/0;
        return new Test();
    }

前端

其余code处理方式一致