hystrix - Spring-Cloud Hystrix(未找到备用方法)

Question

我正在尝试使用hyst，但是在调用save方法时，该方法使带有resttemplate的帖子出现以下异常:

com.netflix.hystrix.contrib.javanica.exception.FallbackDefinitionException:找不到后备方法:breaker([class com.wnb.mastercard.domain.enroll.EnrollCommand])

有人能帮我吗？

@Component
public class EnrollRepositoryRest {

    @Autowired
    private RestTemplate template;

    @Value("${beblue-card-enroll.url}")
    private String url;

    public Enroll getEnrollByCardId(String cardId) {

        Enroll[] enroll = template.getForObject(url + "cardEnroll/enroll/" + cardId, Enroll[].class);

        return enroll[0];
    }

    @HystrixCommand(fallbackMethod = "breaker")
    public void save(EnrollCommand command) {
        template.postForObject(url + "/cardEnroll/enroll", command, EnrollCommand.class);
    }

    public String breaker() {
        System.out.println("HYSTRIX EXECUTADO");
        return "Hystrix is Ok";
    }
}

Answer 1

我认为异常(exception)显然可以告诉您问题所在。方法:

public String breaker(EnrollCommand command) {
    System.out.println("HYSTRIX EXECUTADO");
    return "Hystrix is Ok";
}

不存在。 (注意签名中的参数)

当使用该批注定义后备方法时，后备方法必须与定义Hystrix命令的方法的参数相同。