1.统一异常处理

@ControllerAdvice(annotations = Controller.class)
public class ExceptionAdvice {

    private static final Logger logger = LoggerFactory.getLogger(ExceptionAdvice.class);

    @ExceptionHandler({Exception.class})
    public void handleException(Exception e, HttpServletRequest request, HttpServletResponse response) throws IOException {
        logger.error("服务器发异常"+e.getMessage());
        for (StackTraceElement element : e.getStackTrace()){
            logger.error(element.toString());
        }

        String XRequestedWith = request.getHeader("x-requested-with");
        if ("XMLHttpRequest".equals(XRequestedWith)){
            response.setContentType("application/plain;charset=utf-8");
            PrintWriter writer = response.getWriter();
            writer.write(CommunityUtil.getJSONString(1,"服务器异常"));
        }else{
            response.sendRedirect(request.getContextPath() + "/error");
        }

    }
}

Q.E.D.