全局异常拦截写法

@RestControllerAdvice
@Slf4j
public class GlobalExceptionHandler
{
    @ExceptionHandler(Throwable.class)
    @ResponseStatus(value = HttpStatus.INTERNAL_SERVER_ERROR)
    public String exceptionHandler(HttpServletRequest request, HttpServletResponse response, Exception ex)
    {
        log.error(ex.getMessage(), ex);
        return "服务器异常，请稍后重试";
    }
    @ExceptionHandler(BusinessException.class)
    @ResponseStatus(value = HttpStatus.OK)
    public String businessExceptionHandler(HttpServletRequest request, HttpServletResponse response, Exception ex)
    {
        log.warn(ex.getMessage(), ex);
        return ex.getMessage();
    }
    @ExceptionHandler(NamespaceExistException.class)
    @ResponseStatus(value = HttpStatus.BAD_REQUEST)
    public PlainResult<?> namespaceExistExceptionHandler(NamespaceExistException ex)
    {
        log.warn(ex.getMessage(), ex);
        return PlainResultUtil.buildFailureResult(NAMESPACE_UN_EXIT, ex.getNamespace());
    }
}

@Slf4j
@ControllerAdvice("com.xxxx.admin.controller")
public class WebExceptionHandler extends RequestBodyAdviceAdapter {
    @Autowired
    private RequestContext requestContext;
    @ExceptionHandler(IllegalValidateException.class)
    @ResponseBody
    public Object handleException(HttpServletRequest request, IllegalValidateException ex) {
        log.error("请求：{}，参数: {}, 参数异常: ", request.getRequestURI(), getParam(request), ex);
        return Response.fail(HttpStatus.INTERNAL_SERVER_ERROR.value(), ex.getMessage());
    }
    @ExceptionHandler(JuliaException.class)
    public Object handleMyException(HttpServletRequest request, JuliaException e) {
        log.error("请求：{}，参数: {}, 参数异常: ", request.getRequestURI(), getParam(request), e);
        return Response.fail(e.getErrCode(), e.getErrMsg());
    }
    @ExceptionHandler(Exception.class)
    public Object handleMyException(HttpServletRequest request, Exception e){
        log.error("请求：{}，参数: {}, 参数异常: ", request.getRequestURI(), getParam(request), e);
        return Response.fail(HttpStatus.INTERNAL_SERVER_ERROR.value(), e.getMessage());
    }
    private String getParam(HttpServletRequest request) {
        return requestContext.getParam() != null ? requestContext.getParam().toString() : getParamFromRequest(request);
    }
    private static String getParamFromRequest(HttpServletRequest request) {
        return request.getParameterMap().entrySet().stream().map(e -> String.format("%s=%s", e.getKey(), StringUtils.join(e.getValue()))).collect(Collectors.joining(";"));
    }
    @Override
    public boolean supports(MethodParameter methodParameter, Type targetType,Class<? extends HttpMessageConverter<?>> converterType) {
        return true;
    }
    @Override
    public Object afterBodyRead(Object body, HttpInputMessage inputMessage, MethodParameter parameter, Type targetType, Class<? extends HttpMessageConverter<?>> converterType) {
        requestContext.setParam(body);
        return body;
    }
    @ManagedBean
    @RequestScope
    @Data
    public static class RequestContext {
        private Object param;
    }
}

也可以采用更多的方式
https://www.cnblogs.com/littleatp/p/9496009.html