org.springframework.web.servlet.view.json.MappingJackson2JsonView#setAttributesMap ( )源码实例Demo

@Override
public ModelAndView resolveException(HttpServletRequest httpServletRequest,
    HttpServletResponse httpServletResponse, Object o, Exception e) {
  LOGGER.error("rest error:", e);
  ModelAndView modelAndView = new ModelAndView();
  try {
    ResultInfo resultInfo = new ResultInfo().setStatus(ResultStatus.ERROR.getCode())
        .setMsg(ResultInfo.MSG_ERROR);
    Map<String, Object> attr = JSON.parseObject(JSON.toJSONString(resultInfo), Map.class);
    MappingJackson2JsonView view = new MappingJackson2JsonView();
    view.setAttributesMap(attr);
    modelAndView.setView(view);
  } catch (Exception e1) {
    e1.printStackTrace();
  }
  return modelAndView;
}
 

public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler,
                                     Exception ex) {
    ModelAndView mv = new ModelAndView();
    MappingJackson2JsonView view = new MappingJackson2JsonView();
    Map<String, Object> attributes = new HashMap();
    if (ex instanceof MaxUploadSizeExceededException) {
        attributes.put("code", ResultCode.C403.code);
        attributes.put("msg", "Maximum upload size of " + ((MaxUploadSizeExceededException) ex).getMaxUploadSize() + " bytes exceeded");
        logger.warn(ex.getMessage());
    } else {
        attributes.put("code", ResultCode.C500.code);
        attributes.put("msg", ResultCode.C500.desc);
        logger.error("Internal server error", ex);
    }
    view.setAttributesMap(attributes);
    mv.setView(view);
    return mv;
}
 

/**
 * 获取其它异常。包括500
 *
 * @param e
 * @return
 * @throws Exception
 */
@ExceptionHandler(value = Exception.class)
public ModelAndView defaultErrorHandler(HttpServletRequest request,
                                        HttpServletResponse response,
                                        Exception e, Model model) throws IOException {
    e.printStackTrace();

    if (isAjax(request)) {
        ModelAndView mav = new ModelAndView();
        MappingJackson2JsonView view = new MappingJackson2JsonView();
        Map<String, Object> attributes = new HashMap<String, Object>();
        if (e instanceof UnauthorizedException) {
            attributes.put("msg", "没有权限");
        } else {
            attributes.put("msg", e.getMessage());
        }
        attributes.put("code", "0");
        view.setAttributesMap(attributes);
        mav.setView(view);
        return mav;
    }

    if (e instanceof UnauthorizedException) {
        //请登录
        log.error("无权访问", e);
        return new ModelAndView("common/error/403");
    }
    //其他异常
    String message = e.getMessage();
    model.addAttribute("code", 500);
    model.addAttribute("message", message);
    return new ModelAndView("common/error/500");
}