网上的资料大多代码不全或者功能不全，自己写了一份可用的供参考。
解决的问题：
根据方法名结尾来确认返回html页面或者json格式
/**
* Ajax结尾的，统一返回json异常格式
* @param request
* @return
*/
private Boolean isAjax(HttpServletRequest request){
String requestURI = request.getRequestURI();
return StringUtils.endsWithIgnoreCase(requestURI, "Ajax");
}
@ExceptionHandler(value = Exception.class)
public Object defaultErrorHandler(HttpServletRequest request, HttpServletResponse response, Exception e) {
logger.error("uri:" + request.getRequestURI() + " error:" + e.getMessage());
if(isAjax(request)) {
ResponseDto resp = new ResponseDto(CommonResponseEnum.SYSTEM_ERROR);
resp.setData(e.getMessage());
return render(resp,response);
} else {
ModelAndView mav = new ModelAndView();
mav.addObject("exception", e);
mav.addObject("url", request.getRequestURL());
mav.setViewName(DEFAULT_ERROR_VIEW);
return mav;
}
}
/**
* 转换成response方式返回
* @param model
* @param response
* @return
*/
public static ModelAndView render(Object model, HttpServletResponse response)
{
MappingJackson2HttpMessageConverter jsonConverter = new MappingJackson2HttpMessageConverter();
MediaType jsonMimeType = MediaType.APPLICATION_JSON;
try {
jsonConverter.write(model, jsonMimeType, new ServletServerHttpResponse(response));
} catch (HttpMessageNotWritableException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}