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

@ControllerAdvicepublic 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     * <p/>     * 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