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:
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@Component public class UserFeignClientFallackFactory implements FallbackFactory{ 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 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。
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