Hystrix Dashboard (断路器：Hystrix 仪表盘)--Unable to connect to Command Metric Stream

1.先查看springboot的版本，不同的版本解决问题的方法不大一样，我的版本是2.0

	org.springframework.boot
	spring-boot-starter-parent
	2.0.3.RELEASE
	 

2.查看是否导入了jar包，在External Libraries里检查是否成功引入了jar包，失败的话可以把“-netflix”去掉再试一次

        
        
            org.springframework.boot
            spring-boot-starter-actuator
        

        
        
            org.springframework.cloud
            spring-cloud-starter-netflix-hystrix
        

        
        
		org.springframework.cloud
		spring-cloud-starter-netflix-hystrix-dashboard
	

3.在boot启动程序中加入下面的注解

@EnableCircuitBreaker
@EnableHystrixDashboard

4.对应的service上肯定要加上断路由设定

@FeignClient(value = "service-hi",fallback = SchedualServiceHiHystric.class)

5.springboot2.0以上的版本需要在启动程序中再增加下面的servlet

@Bean
	public ServletRegistrationBean getServlet() {
		HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
		ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
		registrationBean.setLoadOnStartup(1);
		registrationBean.addUrlMappings("/hystrix.stream");
		registrationBean.setName("HystrixMetricsStreamServlet");
		return registrationBean;
	}

6.重新启动