剑鸣秋朔

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网关全局异常处理 ​

网关默认错误 ​

json
{
    "timestamp": "...",
    "path": "/api/auth/oauth/jwt/token",
    "status": 500,
    "error": "Internal Server Error",
    "requestId": "15fede8c-7"
}

全局异常处理 ​

实现一个 GlobalErrorAttributes Bean：

@Component
public class GlobalErrorAttributes extends DefaultErrorAttributes {
    private static final Logger logger = LoggerFactory.getLogger(GlobalErrorAttributes.class);

    @Override
    public Map<String, Object> getErrorAttributes(ServerRequest request, ErrorAttributeOptions options) {
        Throwable error = super.getError(request);

        logger.error("网关处理异常", error);

        Map<String, Object> map = new HashMap<>();
        map.put("success", false);
        map.put("status", HttpStatus.BAD_REQUEST.value());
        map.put("msg", error.getMessage());
        map.put("data", null);

        return map;

    }

}

实现一个 GlobalErrorWebExceptionHandler Bean

@Component
@Order(-2)
public class GlobalErrorWebExceptionHandler extends AbstractErrorWebExceptionHandler {

    public GlobalErrorWebExceptionHandler(GlobalErrorAttributes gea,
                                          ApplicationContext applicationContext,
                                          ServerCodecConfigurer serverCodecConfigurer) {
        super(gea, new WebProperties.Resources(), applicationContext);
        super.setMessageWriters(serverCodecConfigurer.getWriters());
        super.setMessageReaders(serverCodecConfigurer.getReaders());
    }

    @Override
    protected RouterFunction<ServerResponse> getRoutingFunction(final ErrorAttributes errorAttributes) {
        return RouterFunctions.route(RequestPredicates.all(), this::renderErrorResponse);
    }

    private Mono<ServerResponse> renderErrorResponse(final ServerRequest request) {
        final Map<String, Object> errorPropertiesMap = getErrorAttributes(request, ErrorAttributeOptions.defaults());
        return ServerResponse.status(HttpStatus.OK) // 返回成功
                .contentType(MediaType.APPLICATION_JSON)
                .body(BodyInserters.fromValue(errorPropertiesMap));

    }

}