Hystrix 服务熔断

1：方法的熔断

    /**
     * 服务熔断
     *
     * @return
     */
    @HystrixCommand(fallbackMethod = "numLessZeroException", commandProperties = {                  //ctrl+shift+A 查询HystrixCommandProperties
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),                      //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),         //请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),   //时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")        //失败率达到多少后跳闸
    })
    public String paymentInfo_service_fusing(Integer id) {
        if (id == null || id < 0) {
            throw new RuntimeException("id 不能小于0");
        }
        return Thread.currentThread().getName() + "	" + "调用成功，流水号：" + id;
    }

2：注解

@EnableEurekaClient
@SpringBootApplication
@EnableCircuitBreaker   //启动hystrix熔断
@EnableHystrixDashboard //开启图形化界面
public class HystrixPaytment8001 {

    public static void main(String[] args) {
        SpringApplication.run(HystrixPaytment8001.class);
    }
}

@EnableCircuitBreaker   //启动hystrix熔断