@RestControllerAdvice
public class CommonResponseDataAdvice implements ResponseBodyAdvice<Object> {@Override@SuppressWarnings("all")public boolean supports(MethodParameter methodParameter,Class<? extends HttpMessageConverter<?>> aClass) {if (methodParameter.getDeclaringClass().isAnnotationPresent(IgnoreResponseAdvice.class)) {return false;}if (methodParameter.getMethod().isAnnotationPresent(IgnoreResponseAdvice.class)) {return false;}return true;}@Nullable@Override@SuppressWarnings("all")public Object beforeBodyWrite(@Nullable Object o,MethodParameter methodParameter,MediaType mediaType,Class<? extends HttpMessageConverter<?>> aClass,ServerHttpRequest serverHttpRequest,ServerHttpResponse serverHttpResponse) {CommonResponse<Object> response = new CommonResponse<>(0, "");if (null == o) {return response;} else if (o instanceof CommonResponse) {response = (CommonResponse<Object>) o;} else {response.setData(o);}return response;}
}

@RestControllerAdvice
public class GlobalExceptionAdvice {@ExceptionHandler(value = ParamException.class)public CommonResponse<String> handlerParamException(HttpServletRequest req,ParamException ex) {CommonResponse<String> response = new CommonResponse<>(400,"param error");response.setData(ex.getMessage());return response;}@ExceptionHandler(value = BusinessException.class)public CommonResponse<String> handlerBusinessException(HttpServletRequest req,BusinessException ex) {CommonResponse<String> response = new CommonResponse<>(500,"business error");response.setData(ex.getMessage());return response;}@ExceptionHandler(value = SystemException.class)public CommonResponse<String> handlerSystemException(HttpServletRequest req,SystemException ex) {CommonResponse<String> response = new CommonResponse<>(700,"system error");response.setData(ex.getMessage());return response;}
}

@RestController
public class IndexController {@RequestMapping("/")String home() {return "Hello World!";}@IgnoreResponseAdvice@RequestMapping("/hi")String hi() {return "Hello World!";}@RequestMapping("/param")String param() throws Exception {throw new ParamException("参数错误");}@RequestMapping("/business")String business() throws Exception {throw new BusinessException("业务错误");}@RequestMapping("/system")String system() throws Exception {throw new SystemException("系统错误");}
}