springCloud中的Hystrix怎么查看回退

1、新增UserFeignClientFallbackFactory类，该类实现了FallbackFactory接口，重写create接口：

@Component public class UserFeignClientFallackFactory implements FallbackFactory<UserFeignClient> {     private static final Logger LOGGER = LoggerFactory.getLogger(UserFeignClientFallackFactory.class);     @Override     public UserFeignClient create(Throwable throwable) {         return new UserFeignClient() {             @Override             public Map findById(Integer userId) {                 UserFeignClientFallackFactory.LOGGER.info("===================fallback;reason was:",throwable);                 Map<String, String> user = new HashMap<>(3);                 user.put("name","默认用户");                 user.put("id","-1");                 user.put("age","18");                 return user;             }         };     } }

2、修改FeignClient类：

@FeignClient(name = "user",fallbackFactory = UserFeignClientFallackFactory.class) public interface UserFeignClient {     @RequestMapping(value = "/user/getUserInfo", method = RequestMethod.GET)     Map findById(@RequestParam("userId") Integer userId); }

使用@FeignClient的fallbackFactory属性设置回退逻辑。