@SentinelResource 注解在 Controller 函数上配置使用问题

使用 @SentinelResource的时候自定了降级处理但是不能生效

@GetMapping("/getUserInfoById") @SentinelResource(value = "getUserInfoById",blockHandler = "getUserInfoByIdHand") public String getUserInfoById(@RequestParam("id") Integer id) { log.info("getUserInfoById"); try { TimeUnit.MILLISECONDS.sleep(50); } catch (InterruptedException e) { e.printStackTrace(); } return "ok"; }

public String getUserInfoByIdHand(@RequestParam("id") Integer id,BlockException ex) {
    log.info("getUserInfoByIdHand");
    return "出现异常了......";
}

查看源代码发现在拦截器层就进行了流量统计的异常计算统计导致不能进入SentinelResource 的核心SentinelResourceAspect类里面，因为SentinelResourceAspect的调用在拦截器后面， 跟踪源码发现在 AbstractSentinelInterceptor拦截里面就被处理了异常

@Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { try { String resourceName = getResourceName(request);

        if (StringUtil.isNotEmpty(resourceName)) {
            // Parse the request origin using registered origin parser.
            String origin = parseOrigin(request);
            ContextUtil.enter(SENTINEL_SPRING_WEB_CONTEXT_NAME, origin);
            Entry entry = SphU.entry(resourceName, ResourceTypeConstants.COMMON_WEB, EntryType.IN);

            setEntryInRequest(request, baseWebMvcConfig.getRequestAttributeName(), entry);
        }
        return true;
    } catch (BlockException e) {
        handleBlockException(request, response, e);
        return false;
    }
}

--》 handleBlockException(request, response, e); public class DefaultBlockExceptionHandler implements BlockExceptionHandler {

@Override
public void handle(HttpServletRequest request, HttpServletResponse response, BlockException e) throws Exception {
    // Return 429 (Too Many Requests) by default.
    response.setStatus(429);

    StringBuffer url = request.getRequestURL();

    if ("GET".equals(request.getMethod()) && StringUtil.isNotBlank(request.getQueryString())) {
        url.append("?").append(request.getQueryString());
    }

    PrintWriter out = response.getWriter();
    out.print("Blocked by Sentinel (flow limiting)");
    out.flush();
    out.close();
}

out.print("Blocked by Sentinel (flow limiting)");

页面就一直输出 "Blocked by Sentinel (flow limiting)" 所有不能返回正确的异常处理 有什么好的处理方法没还是我的使用有问题

原提问者GitHub用户zhoushisheng001