设置超时时不调用hystrix回退方法

Question

如果将execution.isolation.thread.timeoutInMilliseconds设置为20000，并关闭测试远程服务：http://localhost:8081/services， hystrix将抛出异常

  

org.springframework.web.client.ResourceAccessException：I / O错误   GET请求“http://localhost:8081/services”：拒绝连接：   连接;嵌套异常是java.net.ConnectException：Connection   拒绝：连接

但我除外的是要调用的后备方法，有人可以告诉我出了什么问题吗？

码

@Component
public class hystrixServices {

private Random random = new Random();
public Logger loggers = Logger.getLogger(hystrixServices.class);
/**
 * 模拟获取用户信息(通过网络调用)
 * @return
 */
@HystrixCommand(fallbackMethod="fallback",
        commandProperties = {
                    @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds", value="10000")
                    }
)
//@HystrixCommand(fallbackMethod="fallback")
public String mockGetUserInfo(){
    try
    {
    int randomInt= random.nextInt(10) ;
    if(randomInt<8){ 
        customRestTemplate crt = new customRestTemplate();
        RestTemplate rt = crt.getcustomRestTemplate();
        loggers.info("start making the call");
        String result = rt.getForObject("http://localhost:8081/services", String.class);
        loggers.info("end making the call");
        //loggers.info(result);
        return result;
        //return "random < 8";
    }else{
        return "UserName:liaokailin;number:"+randomInt;
    }       
    }
    catch(Exception e)
    {
        loggers.info(e.toString());
        return "point 1:" + e.toString();
    }
}

public String fallback(){
    return "some exception occur call fallback method.";
}

}